CN108535932A - The debugging apparatus and adjustment method of a kind of nearly far field light path simultaneously - Google Patents
The debugging apparatus and adjustment method of a kind of nearly far field light path simultaneously Download PDFInfo
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- CN108535932A CN108535932A CN201810537970.3A CN201810537970A CN108535932A CN 108535932 A CN108535932 A CN 108535932A CN 201810537970 A CN201810537970 A CN 201810537970A CN 108535932 A CN108535932 A CN 108535932A
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- far field
- viewing screen
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- light path
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/35—Non-linear optics
- G02F1/353—Frequency conversion, i.e. wherein a light beam is generated with frequency components different from those of the incident light beams
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/62—Optical apparatus specially adapted for adjusting optical elements during the assembly of optical systems
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- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Laser Surgery Devices (AREA)
Abstract
The present invention relates to a kind of nearly far field while the debugging apparatus and adjustment method of light path, belong to the nearly far field light path debugging technique field of light path, it include the directing mirror set gradually along beacon beam incident direction, project speculum, frequency conversion crystal, condenser lens and target, the frequency conversion crystal and condenser lens are arranged in support construction, it is provided with film viewing screen on front side of the support construction, it is provided on the film viewing screen and beacon beam beam size, the groove that shape matches, the film viewing screen center be provided with for frequency tripling light by centre bore, the present invention makes collimation beacon beam (including 1053nm, simultaneous transmission 351nm) is realized on the viewing screen, it is not required to toggle film viewing screen when observing near field and far field, greatly improve collimation efficiency and adjustment accuracy, reduce labor intensity.
Description
Technical field
The present invention relates to light paths close, far field light path debugging technique field relates in particular to a kind of nearly far field while detecting
The debugging apparatus and adjustment method of light path.
Background technology
Large-sized solid laser output wavelength is usually longer (such as 1053nm), for the superthermal electricity for inhibiting laser target shooting to generate
Son, Physical Experiment require wavelength shorter (such as 351nm).Therefore, it is necessary to the fundamental frequency light of 1053nm is carried out efficient harmonic wave
Be converted into the frequency tripling light of 351nm, and carry out harmonic wave separation and vernier focusing, be allowed to target spot generate clean frequency tripling swash
Light.Due to the presence of main laser and the intrinsic aberration of frequency tripling light, the two cannot be focused in target spot simultaneously, simultaneously because as beacon
The 1053nm collimated lights and 351nm collimated lights that light uses not exclusively overlap near field, therefore the collimation of light beam must just be divided into
Fundamental frequency light near field collimates and frequency tripling light far field collimation.And traditional beam path alignment using near field collimation and far field collimation respectively into
Row, toggles, Approach by inchmeal, light path debugging efficiency is relatively low.
Based on this, the present invention proposes a kind of nearly far field while monitoring the debugging apparatus and adjustment method of light path, to solve
Deficiency in the prior art.
Invention content
In order to solve various deficiencies of the prior art, it is proposed that the debugging apparatus and tune of a kind of nearly far field light path simultaneously
Method for testing, this method make collimation beacon beam (including 1053nm, 351nm) realize simultaneous transmission on the viewing screen, are not required to observing
Film viewing screen is toggled when near field and far field, greatly improves collimation efficiency and adjustment accuracy, reduces labor intensity.
To achieve the above object, the present invention provides the following technical solutions：
A kind of debugging apparatus of nearly far field light path simultaneously includes that the guiding that is set gradually along beacon beam incident direction is anti-
Mirror, projection speculum, frequency conversion crystal, condenser lens and target, the frequency conversion crystal and condenser lens is penetrated to be arranged at
In support construction, film viewing screen is provided on front side of the support construction, be provided on the film viewing screen with beacon beam beam size,
The groove that shape matches, the film viewing screen center be provided with for frequency tripling light by centre bore.
Further, the frequency conversion crystal includes first frequency conversion crystal and second frequency conversion crystal.
Further, further include near field collimation CCD, the deviation of groove on the viewing screen is fallen for observing fundamental frequency light near field.
Further, further include far field collimation CCD, the deviation on target is fallen for observing frequency tripling light far field.
The present invention also provides a kind of nearly far field while the detection methods of light path, include the following steps：
S1：CCD is collimated by near field and observes the deviation that fundamental frequency light near field falls groove on the viewing screen, adjusts directing mirror
Near-field beam center is set to be overlapped with groove center；
S2：CCD observation frequency tripling light far field is collimated by far field and falls the deviation on target, and adjustment projection speculum makes light beam
Far field center is overlapped with target spot；
S3：It repeats the above steps, until near-field beam and far field collimation are completed.
The beneficial effects of the invention are as follows：
The present invention is provided with film viewing screen on front side of support construction, and is provided with groove and centre bore on the viewing screen, passes through
Near field collimation CCD observation fundamental frequency lights near field falls the deviation of groove on the viewing screen, and adjustment directing mirror makes near-field beam center
It is overlapped with groove center, collimating CCD observation frequency tripling light far field by far field falls the deviation on target, and adjustment projection speculum makes
Far field beam center is overlapped with target spot, by repeating above step, is achieved the purpose that nearly far field light path simultaneously, is not required to seeing
Film viewing screen is toggled when examining near field and far field, greatly improves collimation efficiency and adjustment accuracy, reduces labor intensity, the present invention
It is simple and practicable, it is easy to operate, it is debugged especially suitable for beam path alignment.
Description of the drawings
Fig. 1 is nearly far field beam path alignment structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of film viewing screen of the present invention.
In attached drawing：1- beacon beams, 2- directing mirrors, 3- project speculum, and the near fields 4- collimate CCD, 5- film viewing screens, 51-
Film viewing screen main body, 52- grooves, 53- fundamental frequency lights, 54- centre bores, 6- first frequency conversion crystals, 7- second frequency conversion crystals,
8- condenser lenses, the far fields 9- collimate CCD, 10- targets, 11- fundamental frequency optical focus, 12- frequency tripling focuses, 13- support constructions.
Specific implementation mode
It is right with reference to the attached drawing of the present invention in order to make those skilled in the art more fully understand technical scheme of the present invention
Technical scheme of the present invention carries out clear, complete description, and based on the embodiment in the application, those of ordinary skill in the art exist
The other similar embodiments obtained under the premise of not making creative work, shall fall within the protection scope of the present application.
As shown in Figure 1, the debugging apparatus of a kind of nearly far field while light path, including successively along 1 incident direction of beacon beam
The directing mirror 2 of setting, projection speculum 3, frequency conversion crystal, condenser lens 8 and target 10, the frequency conversion crystal and
Condenser lens 8 is arranged in support construction 13, and the frequency conversion crystal includes first frequency conversion crystal 6 and second frequency
Conversion crystal 7, the channeled speculum 2 of light beam of the beacon beam 1 and the projection guiding transmission of speculum 3, are converted by first frequency
Crystal 6, second frequency conversion crystal 7 carry out frequency conversion, 8 vernier focusing of lens is transmitted to target spot 10.
The front side of the support construction 13 is provided with film viewing screen 5, and the connection between film viewing screen 5 and support construction 13 carries out accurate
Matched design, as shown in Fig. 2, the groove 52 to match with 1 beam size of beacon beam, shape is provided in film viewing screen main body 51,
51 center of film viewing screen main body is logical for frequency tripling light in the setting of 51 corresponding position of film viewing screen main body according to theoretical optical axis
The centre bore 54 of light.
The debugging apparatus of the nearly far field while light path further includes that near field collimation CCD4 and far field collimate CCD9, described
Near field collimation CCD4 is used for for observing the deviation that fundamental frequency light near field falls the groove 52 on film viewing screen 5, the far field collimation CCD9
Observation frequency tripling light far field falls the deviation on target 10.
The debugging apparatus of the nearly far field while light path is in use, include the following steps：
(1) CCD4 is collimated by near field and observes the deviation that fundamental frequency light near field falls the groove 52 on film viewing screen 5, adjustment guiding is anti-
Penetrating mirror 2 makes near-field beam center be overlapped with 52 center of groove；
(2) CCD9 observation frequency tripling light far field is collimated by far field and falls the deviation on target 10, adjustment projection speculum 3 makes
Far field beam center overlaps for 10 points with target；
(3) it repeats the above steps, until near-field beam and far field collimation are completed.
The present invention is described in detail above, described above, only the preferred embodiments of the invention, when cannot
Limit the scope of the present invention, i.e., it is all according to the made equivalent changes and modifications of the application range, it all should still belong to covering scope of the present invention
It is interior.
Claims (5)
1. the debugging apparatus of a kind of nearly far field while light path, it is characterised in that：Including along beacon beam (1) incident direction successively
Directing mirror (2), projection speculum (3), frequency conversion crystal, condenser lens (8) and the target (10) of setting, the frequency turn
It changes crystal and condenser lens (8) is arranged in support construction (13), film viewing screen is provided on front side of the support construction (13)
(5), the groove (52) to match with beacon beam (1) beam size, shape, the film viewing screen are provided on the film viewing screen (5)
(5) center be provided with for frequency tripling light by centre bore (54).
2. the debugging apparatus of nearly far field according to claim 1 while light path, it is characterised in that：The frequency conversion
Crystal includes first frequency conversion crystal (6) and second frequency conversion crystal (7).
3. the debugging apparatus of nearly far field according to claim 2 while light path, it is characterised in that：It further include near field standard
Straight CCD (4), the deviation of the groove (52) on film viewing screen (5) is fallen for observing fundamental frequency light near field.
4. the debugging apparatus of nearly far field according to claim 3 while light path, it is characterised in that：It further include far field standard
Straight CCD (9), the deviation on target (10) is fallen for observing frequency tripling light far field.
5. the debugging apparatus of a kind of nearly far field using described in claim 4 while light path debugs nearly far field detection light simultaneously
The method on road, it is characterised in that：Include the following steps：
S1：CCD (4), which is collimated, by near field observes the deviation that fundamental frequency light near field falls the groove (52) on film viewing screen (5), adjustment guiding
Speculum (2) makes near-field beam center be overlapped with groove (52) center；
S2：CCD (9) observation frequency tripling light far field, which is collimated, by far field falls the deviation on target (10), adjustment projection speculum (3)
Far field beam center is set to be overlapped with target (10) point；
S3：It repeats the above steps, until near-field beam and far field collimation are completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810537970.3A CN108535932A (en) | 2018-05-30 | 2018-05-30 | The debugging apparatus and adjustment method of a kind of nearly far field light path simultaneously |
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| CN201810537970.3A CN108535932A (en) | 2018-05-30 | 2018-05-30 | The debugging apparatus and adjustment method of a kind of nearly far field light path simultaneously |
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| CN108535932A true CN108535932A (en) | 2018-09-14 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931855A (en) * | 2018-09-27 | 2018-12-04 | 中国工程物理研究院激光聚变研究中心 | A kind of annular beam converting means and transform method |
| CN109431459A (en) * | 2018-12-28 | 2019-03-08 | 中山联合光电科技股份有限公司 | A kind of novel ocular bottom imaging lens |
| CN110488251A (en) * | 2019-08-26 | 2019-11-22 | 国耀量子雷达科技有限公司 | The preparation method of laser radar system and its laser radar echo signal curve, device |
| CN112197940A (en) * | 2020-09-15 | 2021-01-08 | 中国科学院上海光学精密机械研究所 | Single-optical-path precise measurement near-far field reference and collimation device |
| CN112260043A (en) * | 2020-10-16 | 2021-01-22 | 北京卓镭激光技术有限公司 | Laser light path debugging device and laser light path debugging method |
| CN114326138A (en) * | 2022-01-05 | 2022-04-12 | 中国工程物理研究院激光聚变研究中心 | High-precision rotating table optical axis assembling and adjusting method |
| CN115032847A (en) * | 2022-08-10 | 2022-09-09 | 中国工程物理研究院应用电子学研究所 | Sum frequency light output device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931855A (en) * | 2018-09-27 | 2018-12-04 | 中国工程物理研究院激光聚变研究中心 | A kind of annular beam converting means and transform method |
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| CN109431459A (en) * | 2018-12-28 | 2019-03-08 | 中山联合光电科技股份有限公司 | A kind of novel ocular bottom imaging lens |
| CN109431459B (en) * | 2018-12-28 | 2024-04-05 | 中山联合光电科技股份有限公司 | Novel fundus imaging lens |
| CN110488251A (en) * | 2019-08-26 | 2019-11-22 | 国耀量子雷达科技有限公司 | The preparation method of laser radar system and its laser radar echo signal curve, device |
| CN112197940A (en) * | 2020-09-15 | 2021-01-08 | 中国科学院上海光学精密机械研究所 | Single-optical-path precise measurement near-far field reference and collimation device |
| CN112197940B (en) * | 2020-09-15 | 2022-09-02 | 中国科学院上海光学精密机械研究所 | Single-optical-path precise measurement near-far field reference and collimation device |
| CN112260043A (en) * | 2020-10-16 | 2021-01-22 | 北京卓镭激光技术有限公司 | Laser light path debugging device and laser light path debugging method |
| CN114326138A (en) * | 2022-01-05 | 2022-04-12 | 中国工程物理研究院激光聚变研究中心 | High-precision rotating table optical axis assembling and adjusting method |
| CN114326138B (en) * | 2022-01-05 | 2023-06-13 | 中国工程物理研究院激光聚变研究中心 | Optical axis adjustment method for high-precision rotary table |
| CN115032847A (en) * | 2022-08-10 | 2022-09-09 | 中国工程物理研究院应用电子学研究所 | Sum frequency light output device |
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Application publication date: 20180914 |
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