CN212341524U - Space removes collimater making devices who disturbs mould - Google Patents
Space removes collimater making devices who disturbs mould Download PDFInfo
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- CN212341524U CN212341524U CN202021727773.7U CN202021727773U CN212341524U CN 212341524 U CN212341524 U CN 212341524U CN 202021727773 U CN202021727773 U CN 202021727773U CN 212341524 U CN212341524 U CN 212341524U
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Abstract
The utility model discloses a collimator making device for removing a disturbing die in space, which comprises a cladding die eliminating component, a collimator to be made and a reflector which are arranged in sequence; the input end of the cladding mode eliminating component is connected with a light source; the reflected light beam of the collimator to be manufactured is connected into a power meter; the cladding mode eliminating assembly comprises a first collimator, a second collimator and an outer sleeve; the first collimator and the second collimator are coaxially arranged in the outer sleeve after the insertion loss is adjusted to be minimum; the cladding mode eliminating component is used for eliminating the cladding mode of the optical fiber. The utility model provides a collimator making devices of mode is removed in space eliminates the covering mould in the optic fibre earlier through covering mould elimination subassembly, refabrication collimator. The special optical fiber collimator thus produced has real and accurate index and may be used widely in various special optical fiber devices.
Description
Technical Field
The utility model relates to an optical fiber communication technical field especially involves a collimator making devices that mode was removed in space.
Background
Optical fiber communication is a latest communication technology that uses light waves as carrier waves to transmit information and uses optical fibers as transmission media to realize information transmission, thereby achieving the purpose of communication.
The optical fiber is composed of a core, a cladding and a coating layer. The light beam is transmitted in the fiber core, and the total reflection is needed to restrict the light beam to be transmitted in the fiber core, the refractive index of the fiber core is required to be larger than that of the cladding, the fiber cladding plays a guiding role in the light beam transmitted in the fiber core layer, and the fiber coating layer plays a protection role in the optical fiber.
The special optical fiber has wide application in various fields as the future development direction of optical fiber technology. In particular to a series of special optical fibers such as polarization maintaining optical fibers for optical fiber sensing, erbium-doped optical fibers for optical fiber laser and the like. The development has been rapid in recent years.
Special optical fibers have a trend in several directions as follows: ZBL fiber, pump fiber, multimode fiber, polarization maintaining fiber, and zero dispersion fiber. A special optical fiber device: optical wavelength division multiplexers, optical switches, optical modulator tunable dispersion compensators, dynamic PMD compensators, high power amplifiers, and the like. A sensing optical fiber device: the device can be used in various special environments, such as sensing and detecting devices of pressure, temperature, displacement and other parameters, and fiber optic gyroscopes.
Cladding mode (cladding mode) refers to a mode in which the outermost cladding surrounded by a low refractive index medium is enclosed in the cladding and the core. A part of light in the special optical fiber enters the optical fiber and propagates in the optical fiber in a cladding mode, the part of light reduces the quality of a light beam transmitted by the optical fiber and increases the spot size and the beam divergence angle, and meanwhile, the cladding mode light can enter a coating layer of the optical fiber and is absorbed by the coating layer, so that the coating layer of the optical fiber is damaged due to heating of laser absorption. In order to obtain correct measurements and improve the quality of the light beam coupled out of the fiber, the cladding modes are in many cases eliminated.
The special optical fiber device needs to use a collimator, so the influence of a cladding mode is also eliminated in the manufacture of the special optical fiber collimator.
As shown in FIG. 1, the collimator is made up of a fiber head 51, a lens 6, a glass sleeve 7, and a mirror 8. The optical fiber outside the optical fiber head 51 consists of a fiber core, a cladding and a coating layer; the optical fiber in the optical fiber head 51 is composed of a core and a cladding. In the case of only core transmission modes in the optical path, all transmission modes can be perfectly reflected back to the core by the lens 6 and mirror 8. In this case, the collimator index is true and accurate.
As shown in fig. 2, the collimator is made up of a fiber head 51, a lens 6, a glass sleeve 7, and a mirror 8. The optical fiber outside the optical fiber head 51 consists of a fiber core, a cladding and a coating layer; the optical fiber in the optical fiber head 51 is composed of a core and a cladding. The collimator is manufactured under the condition that a fiber core transmission mode and a cladding leakage mode exist in an optical path, because the cladding mode is influenced by the cladding mode, the cladding mode can be reflected back to the optical fiber, the lens and the optical fiber head cannot be adjusted to the correct position, and the manufactured collimator index is wrong.
However, if the collimator fabricated in the case of the core-only transmission mode as shown in fig. 1 is used in the case of the leakage mode of the cladding, the leakage mode of the cladding cannot be returned to the cladding.
If the cladding mode is not removed, the index of the collimator is wrong, the loss is not correct, and the collimator cannot be applied to various special optical fiber devices.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provide a collimator manufacturing device and method for removing the interference mode in space.
The utility model discloses a realize through following mode:
the utility model provides a collimator making devices of mode is removed in space which characterized in that: comprises a cladding mode eliminating component, a collimator to be manufactured and a reflector 8 which are arranged in sequence; the input end of the cladding mode eliminating component is connected with the light source 1; the reflected beam of the collimator to be manufactured is connected into a power meter 9; the cladding mode eliminating assembly comprises a first collimator 31, a second collimator 32 and an outer sleeve 4; the first collimator 31 and the second collimator 32 are coaxially arranged in the outer sleeve 4 after the insertion loss is adjusted to be minimum; the collimator to be manufactured comprises a fiber head 51 and a lens 6 which are arranged in a glass sleeve 7; the lens 6 is arranged opposite to the reflector 8; the fiber tip 51 is coupled to a cladding mode cancellation assembly.
Further, the collimator to be manufactured is a single-fiber collimator; the collimator to be manufactured comprises a fiber head 51 and a lens 6 which are arranged in a glass sleeve 7; the lens 6 is arranged opposite to the reflector 8; the optical fiber head 51 is connected with the cladding mode eliminating assembly; the input end of the cladding mode eliminating component is a first collimator 31; the light source 1 is connected with a first collimator 31 of the cladding mode elimination assembly through a coupler 2; the coupler 2 receives the reflected beam of the collimator to be manufactured and is connected with the power meter 9.
Further, the collimator to be manufactured is a dual-fiber collimator; the collimator to be manufactured comprises a double optical fiber head 52 and a lens 6 which are arranged in a glass sleeve 7; the lens 6 is arranged opposite to the reflector 8; the input end of the dual optical fiber head 52 is connected with the cladding mode eliminating component; the input end of the cladding mode eliminating component is a first collimator 31; the light source 1 is connected with a first collimator 31 of the cladding mode elimination assembly; the reflected beam at the output end of the collimator to be manufactured is connected with a power meter 9 after passing through another cladding mode eliminating assembly.
Further, the first collimator 31 and the second collimator 32 in the cladding mode elimination assembly are special fiber collimators.
Further, the cladding mode eliminating assembly can be used in a manufacturing device of a special optical fiber device.
A method for manufacturing a collimator for removing a mode of interference in space comprises the following steps:
s1: manufacturing a cladding die eliminating assembly: firstly, coaxially placing two special optical fiber collimators, namely a first collimator 31 and a second collimator 32, in an outer sleeve 4, adjusting the insertion loss to be minimum, and then fixing to form a cladding mode eliminating assembly;
s2: optical path connection: the light source 1 is connected with a first optical fiber of the coupler 2, light beams are output from a second optical fiber of the coupler 2 and are connected with an optical fiber of the first collimator 31, and a third optical fiber of the coupler 2 is connected with the power meter 9;
s3: fixing a lens 6 of a collimator to be manufactured in a glass sleeve 7, and connecting an optical fiber head 51 with an optical fiber of a second collimator 32;
s4: the reflector 8 is placed in front of the lens 6, and the collimator is adjusted and manufactured by reflection. Clamping the lens 6 and the glass sleeve 7 by using a clamp, then adjusting the distance between the optical fiber head 51 and the lens 6, adjusting the reflector 8, monitoring the reading of the power meter 9, fixing the optical fiber head 51 when the index is adjusted to the designed value, and finishing the manufacture of the collimator;
s5: the fiber is broken at the fiber junction of the fiber head 51 and the second collimator 32, and the finished collimator is removed.
A method for manufacturing a spatial interference-free mode collimator comprises the following steps:
s21: manufacturing a cladding die eliminating assembly: firstly, coaxially placing two special optical fiber collimators, namely a first collimator 31 and a second collimator 32, in an outer sleeve 4, adjusting the insertion loss to be minimum, and then fixing to form a cladding mode eliminating assembly;
s22: optical path connection: the light source 1 is connected with the first collimator 31, and light beams are input;
s23: fixing a lens 6 of a collimator to be manufactured in a glass sleeve 7, and connecting the input end of the double-fiber head 52 with the optical fiber of the second collimator 32; the output end light beam of the double optical fiber head 52 is connected with the power meter 9 after passing through another cladding mode eliminating component, and the output end of the double optical fiber head 52 is also connected with a second collimator 32 of another cladding mode eliminating component;
s24: the reflector 8 is placed in front of the lens 6, and the collimator is adjusted and manufactured by reflection. Clamping the lens 6 and the glass sleeve 7 by using a clamp, then adjusting the distance between the double optical fiber heads 52 and the lens 6, adjusting the reflector 8, monitoring the reading of the power meter 9, fixing the double optical fiber heads 52 when the index is adjusted to the designed value, and finishing the manufacture of the collimator;
s25: the fiber is broken at the fiber junction of the dual fiber head 52 and the second collimator 32, and the finished collimator is removed.
The beneficial effects of the utility model reside in that: in the manufacture of the special optical fiber collimator, the cladding mode eliminating assembly is added on the optical path to eliminate the cladding mode in the optical fiber, so that the manufactured collimator is not influenced by the cladding mode, the collimator with real and accurate index is manufactured, and the special optical fiber collimator can be widely applied to various special optical fiber devices.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic diagram of the collimator fabrication principle in the core only transmission mode.
FIG. 2 is a schematic diagram of the collimator fabrication principle with cladding leaky modes.
Fig. 3 is a schematic diagram of a collimator manufacturing apparatus for removing a spatial interference pattern according to a first embodiment of the present invention.
Fig. 4 is a schematic diagram of a collimator manufacturing apparatus for removing a spatial perturbation mode according to a second embodiment of the present invention.
Fig. 5 is a schematic diagram of a cladding mode eliminating assembly according to an embodiment of the present invention.
The reference numbers in the figures illustrate: 1-light source, 2-coupler, 21-first optical fiber, 22-second optical fiber, 23-third optical fiber, 31-first collimator, 32-second collimator, 4-outer sleeve, 51-single optical fiber head, 52-double optical fiber head, 6-lens, 7-glass sleeve, 8-reflector and 9-power meter.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The first embodiment is as follows:
as shown in fig. 3 and 5, the utility model discloses a collimator making devices of mode is removed in space, the preparation of single fiber collimator, its characterized in that: the device comprises a light source 1, a power meter 9, a coupler 2, a cladding mode eliminating assembly, a collimator to be manufactured and a reflector 8 which are sequentially arranged from right to left. The cladding mode eliminating assembly comprises a first collimator 31, a second collimator 32 and an outer sleeve 4; the collimator to be manufactured comprises a single optical fiber head 51, a lens 6 and a glass sleeve 7.
The specific implementation process is as follows:
the collimator to be manufactured is a single-fiber collimator, the optical fiber 11 of the light source 1 is connected with the first optical fiber 21 of the coupler 2, and light beams are input. The light beam is output from the second optical fiber 22 of the coupler 2, and the second optical fiber 22 of the coupler 2 is connected to the special optical fiber 311 of the first collimator 31 of the cladding mode elimination assembly, and the light beam has a cladding leakage mode. As shown in fig. 5, the light beam passes through the cladding mode eliminating assembly formed by the first collimator 31 and the second collimator 32, and then the cladding modes are eliminated. The light beam is output from the special optical fiber 321 of the second collimator 32, and the special optical fiber 511 of the optical fiber head 51 of the collimator to be manufactured is connected with the special optical fiber 321 of the second collimator 32, so that the light beam input into the optical fiber head 51 has no cladding mode, the manufactured collimator index is not influenced by the cladding mode, and the collimator with real and accurate index is manufactured. And (3) manufacturing a collimator according to a reflection method, adjusting the distance between the optical fiber head 51 and the lens 6, adjusting the reflector 8 at the same time, returning the reflected light beam in the original path, outputting the light beam to the power meter 9 through the third optical fiber 23 of the coupler 2 after passing through the coupler 2, monitoring the reading of the power meter 9, and fixing the single optical fiber head 51 when the index is adjusted to a designed value, thereby completing the manufacturing of the single optical fiber special collimator.
Example two:
as shown in fig. 4 and 5, the utility model discloses a collimator making devices of disturbing mould is removed in space, the preparation of two fine collimators, its characterized in that: the device comprises a light source 1, a cladding mode eliminating assembly, a collimator to be manufactured, a reflector 8, a cladding mode eliminating assembly and a power meter 9 which are sequentially arranged from right to left and then right. The cladding mode eliminating assembly comprises a first collimator 31, a second collimator 32 and an outer sleeve 4; the collimator to be manufactured comprises a double optical fiber head 52, a lens 6 and a glass sleeve 7.
The specific implementation process is as follows:
the collimator to be manufactured is a double-fiber collimator, the optical fiber 11 of the light source 1 is connected with the special optical fiber 311 of the first collimator 31 of the cladding mode eliminating assembly, and light beams are input. There are cladding leaky modes in this beam. As shown in fig. 5, the light beam passes through the cladding mode eliminating assembly formed by the first collimator 31 and the second collimator 32, and then the cladding modes are eliminated. The light beam is output from the special optical fiber 321 of the second collimator 32, and the special optical fiber 521 of the dual-fiber head 52 of the collimator to be manufactured is connected with the special optical fiber 321 of the second collimator 32, so that the light beam input into the dual-fiber head 52 has no cladding mode, the index of the manufactured collimator is not influenced by the cladding mode, and the collimator with real and accurate index is manufactured. The collimator is manufactured according to a reflection method, the distance between the double-fiber head 52 and the lens 6 is adjusted, meanwhile, the reflector 8 is adjusted, so that the reflected light beams are output from the special optical fiber 522 of the double-fiber head 52, a cladding mode eliminating assembly is required to be connected because the reflected light beams possibly have a cladding mode, the special optical fiber 522 where the output light beams of the double-fiber head 52 are located is connected with the special optical fiber 321 of the other cladding mode eliminating assembly, the reflected light beams are output to the power meter 9 after passing through the cladding mode eliminating assembly, the reading of the power meter 9 is monitored, when the index is adjusted to a designed value, the double-fiber head 52 is fixed, and the manufacture of the double-fiber special collimator is completed.
FIG. 5 is a schematic diagram illustrating the principle of eliminating the cladding modes of an optical fiber for a cladding mode eliminating assembly. The light beam has a cladding leakage mode, the light beam is input from the special optical fiber 311 of the first collimator 31, the cladding leakage mode cannot enter the second collimator 32 through air, and cannot enter the core and the cladding of the optical fiber, so that the cladding mode is eliminated.
A method for manufacturing a collimator for removing a mode of interference in space comprises the following steps:
s1: manufacturing a cladding die eliminating assembly: firstly, coaxially placing two special optical fiber collimators, namely a first collimator 31 and a second collimator 32, in an outer sleeve 4, adjusting the insertion loss to be minimum, and then fixing to form a cladding mode eliminating assembly;
s2: optical path connection: the light source 1 is connected with a first optical fiber of the coupler 2, light beams are output from a second optical fiber of the coupler 2 and are connected with an optical fiber of the first collimator 31, and a third optical fiber of the coupler 2 is connected with the power meter 9;
s3: fixing a lens 6 of a collimator to be manufactured in a glass sleeve 7, and connecting an optical fiber head 51 with an optical fiber of a second collimator 32;
s4: the reflector 8 is placed in front of the lens 6, and the collimator is adjusted and manufactured by reflection. Clamping the lens 6 and the glass sleeve 7 by using a clamp, then adjusting the distance between the optical fiber head 51 and the lens 6, adjusting the reflector 8, monitoring the reading of the power meter 9, fixing the optical fiber head 51 when the index is adjusted to the designed value, and finishing the manufacture of the collimator;
s5: the fiber is broken at the fiber junction of the fiber head 51 and the second collimator 32, and the finished collimator is removed.
A method for manufacturing a spatial interference-free mode collimator comprises the following steps:
s21: manufacturing a cladding die eliminating assembly: firstly, coaxially placing two special optical fiber collimators, namely a first collimator 31 and a second collimator 32, in an outer sleeve 4, adjusting the insertion loss to be minimum, and then fixing to form a cladding mode eliminating assembly;
s22: optical path connection: the light source 1 is connected with the first collimator 31, and light beams are input;
s23: fixing a lens 6 of a collimator to be manufactured in a glass sleeve 7, and connecting the input end of the double-fiber head 52 with the optical fiber of the second collimator 32; the output end light beam of the double optical fiber head 52 is connected with the power meter 9 after passing through another cladding mode eliminating component, and the output end of the double optical fiber head 52 is also connected with a second collimator 32 of another cladding mode eliminating component;
s24: the reflector 8 is placed in front of the lens 6, and the collimator is adjusted and manufactured by reflection. Clamping the lens 6 and the glass sleeve 7 by using a clamp, then adjusting the distance between the double optical fiber heads 52 and the lens 6, adjusting the reflector 8, monitoring the reading of the power meter 9, fixing the double optical fiber heads 52 when the index is adjusted to the designed value, and finishing the manufacture of the collimator;
s25: the fiber is broken at the fiber junction of the dual fiber head 52 and the second collimator 32, and the finished collimator is removed.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a collimator making devices of mode is removed in space which characterized in that: comprises a cladding mode eliminating component, a collimator to be manufactured and a reflector (8) which are arranged in sequence; the input end of the cladding mode eliminating component is connected with a light source (1); the reflected light beam of the collimator to be manufactured is connected into a power meter (9); the cladding mode eliminating assembly comprises a first collimator (31), a second collimator (32) and an outer sleeve (4); the first collimator (31) and the second collimator (32) are coaxially arranged in the outer sleeve (4) after insertion loss is adjusted to be minimum.
2. The collimator making device for the spatial de-scrambling module as claimed in claim 1, wherein: the collimator to be manufactured is a single-fiber collimator; the collimator to be manufactured comprises an optical fiber head (51) and a lens (6) which are arranged in a glass sleeve (7); the lens (6) is arranged opposite to the reflector (8); the optical fiber head (51) is connected with the cladding mode eliminating assembly; the input end of the cladding mode eliminating component is a first collimator (31); the light source (1) is connected with a first collimator (31) of the cladding mode eliminating assembly through a coupler (2); and the coupler (2) is connected with the power meter (9) after receiving the reflected beam of the collimator to be manufactured.
3. The collimator making device for the spatial de-scrambling module as claimed in claim 1, wherein: the collimator to be manufactured is a double-fiber collimator; the collimator to be manufactured comprises a double optical fiber head (52) and a lens (6) which are arranged in a glass sleeve (7); the lens (6) is arranged opposite to the reflector (8); the input end of the double optical fiber head (52) is connected with the cladding mode eliminating component; the input end of the cladding mode eliminating component is a first collimator (31); the light source (1) is connected with a first collimator (31) of the cladding mode eliminating assembly; and the reflected light beam at the output end of the collimator to be manufactured passes through another cladding mode eliminating assembly and then is connected with a power meter (9).
4. A spatial mode-perturbing collimator set as claimed in any one of claims 1 to 3, wherein: the first collimator (31) and the second collimator (32) in the cladding mode elimination assembly are special optical fiber collimators.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021727773.7U CN212341524U (en) | 2020-08-18 | 2020-08-18 | Space removes collimater making devices who disturbs mould |
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| CN202021727773.7U CN212341524U (en) | 2020-08-18 | 2020-08-18 | Space removes collimater making devices who disturbs mould |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111897056A (en) * | 2020-08-18 | 2020-11-06 | 福州百讯光电有限公司 | Space disturbance removal collimator manufacturing device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111897056A (en) * | 2020-08-18 | 2020-11-06 | 福州百讯光电有限公司 | Space disturbance removal collimator manufacturing device and method |
| CN111897056B (en) * | 2020-08-18 | 2024-03-22 | 福建中科百讯光电有限公司 | Collimator manufacturing device and method for spatial disturbance removal mode |
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Address after: Room 1078, 10 / F, building 17, phase II, innovation park, 7 wulongjiang middle Avenue, Fuzhou high tech Zone, Fuzhou City, Fujian Province, 350100 Patentee after: Fujian Zhongke Baixun photoelectric Co.,Ltd. Address before: Room 1078, 10 / F, building 17, phase II, innovation park, 7 wulongjiang middle Avenue, Fuzhou high tech Zone, Fuzhou City, Fujian Province, 350100 Patentee before: FUZHOU BAIXUN PHOTOELECTRIC Co.,Ltd. |