CN205581348U - Tunable ROSA of wavelength - Google Patents
Tunable ROSA of wavelength Download PDFInfo
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- CN205581348U CN205581348U CN201620419963.XU CN201620419963U CN205581348U CN 205581348 U CN205581348 U CN 205581348U CN 201620419963 U CN201620419963 U CN 201620419963U CN 205581348 U CN205581348 U CN 205581348U
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- tunable
- rosa
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- wave filter
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Abstract
The utility model discloses a tunable ROSA of wavelength, include TO shell, TO base, locate the PD on the TO base, still including being fixed in tunable narrow bandpass filter and the lenticule on the TO shell window, the light signal is received by PD after lenticule focus after tunable narrow bandpass filter filtering. The utility model discloses an increase tunable narrow bandpass filter in the ROSA of TO or the encapsulation of type TO, the cooperation encapsulates the broadband DWDM wave filter on TO shell window, realizes the tunable of ROSA wavelength quick relatively under the circumstances of limited cost, volume restriction, greatly reduced system wavelength devision multiplex's upgrade cost.
Description
Technical field
This utility model relates to optical-fibre communications field, especially relates to a kind of tunable wave length ROSA with heat tune silicon etalon.
Background technology
Along with information-based, digital society process gradually deeply, need the data volume persistence swapping, transmitting to increase sharply, on the basis of existing fiber network, promote channel capacity by wavelength-division multiplex seem ever more important.Being limited to the sky high cost of wavelength control, traditional ROSA does not possess wavelength coherent detection ability, finally makes whole system can only operate under a wider wavelength, is run by time-multiplexed mode, which greatly limits the message capacity of system.In the face of the explosive data volume increased, promote power system capacity further and seem most important.
Utility model content
The purpose of this utility model is the tunable wave length ROSA providing a kind of heat to adjust silicon etalon, it is achieved low cost, small size, relatively quick wavelength tuning function, to reduce the upgrade cost of system wavelength-division multiplex.
In order to solve above-mentioned technical problem, the technical solution of the utility model is: a kind of tunable wave length ROSA, including TO shell, TO base, the PD that is located on TO base；Also include tunable narrow-band wave filter and the lenticule being fixed on TO housing window；Optical signal, after tunable narrow-band filter filtering, is received by PD after micro lens.
Further, also include a broadband DWDM wave filter, be fixed on the window of TO shell, be positioned at before adjustable narrow band filter；Optical signal first, after broadband DWDM wave filter carries out one-level filtering, enters back into adjustable narrow band filter and carries out secondary filter.
Further, described broadband DWDM wave filter is multiple smooth bonding compositions of filter plate superposition.
Further, after the plurality of smooth filter plate superposition is bonding, its logical bright finish is processed as round-shaped with what TO housing window size adapted.
Further, at described TO housing window, there is multilayer steps, be respectively used to fixed broadband DWDM wave filter, tunable narrow-band wave filter and lenticule.
Further, described broadband DWDM wave filter is adhered on a switching becket, then is fixed on the window of TO shell by switching becket.
Further, described switching becket is flange shape.
Further, described tunable narrow-band wave filter is that Si heats etalon, and it is coated with heating resistive film.
Further, described tunable narrow-band wave filter is that Si heats etalon, is fixed on a heating fixed support, and described heating fixed support is packaged in TO shell.
The technical solution of the utility model, tunable narrow-band wave filter is increased by the ROSA that TO or class TO encapsulate, coordinate the broadband DWDM wave filter being packaged on TO housing window, in the case of limited cost, volumetric constraint, realize the tunable of relatively quick ROSA wavelength, greatly reduce the upgrade cost of system wavelength-division multiplex.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is described in further detail.
Fig. 1 is this utility model tunable ROSA example structure schematic diagram；
Fig. 2 is broadband DWDM filter construction schematic diagram；
Fig. 3 is broadband DWDM wave filter adhesive structure embodiment one；
Fig. 4 is broadband DWDM wave filter adhesive structure embodiment two.
Description of symbols: 10, TO shell；20, TO base；30, tunable narrow-band wave filter；40, lenticule；50、PD；60, broadband DWDM wave filter；70, switching becket.
Detailed description of the invention
Below in conjunction with the accompanying drawings and detailed description of the invention, this utility model is described further.
It is illustrated in figure 1 the embodiment one of a kind of tunable wave length ROSA, including having the TO shell 10 of window, TO base 20, the tunable narrow-band wave filter 30 being encapsulated between TO shell 10 and TO base 20, lenticule 40, photodiode (PD 50), the broadband DWDM wave filter 60 being encapsulated on TO shell 10 window.At TO shell 10 window, there is multilayer steps, be respectively used to fixed broadband DWDM wave filter 60, tunable narrow-band wave filter 30 and lenticule 40.Optical signal enters into tunable narrow-band wave filter 30 second time filtering after entering into the filtering for the first time of broadband DWDM wave filter 60, the optical signal after filtration is received by photodiode (PD 50) after being focused on by lenticule 40, it is achieved the tunable wave length of ROSA.In this embodiment, tunable narrow-band wave filter 30 uses Si to heat etalon, and it is coated with heating resistive film, is realized the tunable wave length of ROSA by the temperature of heating resistive film regulation Si heating etalon.This structural volume is little, low cost.
Wherein, Si heating etalon can also be fixed on a heating fixed support, and this heating fixed support is packaged in TO shell, is realized the tunable wave length of ROSA by the temperature of heating fixed support regulation Si heating etalon.
As in figure 2 it is shown, broadband DWDM wave filter 60 is constituted by multiple smooth filter plate superpositions are bonding, after multiple smooth filter plate superpositions are bonding, its logical bright finish is processed as round-shaped with what TO housing window size adapted.
As shown in Figure 3,4, broadband DWDM wave filter 60 is bonded on switching becket 70, this switching becket 70 is flange shape, the flange flange of switching becket 70 passes through glue bond with TO shell 10 window, the bonding direction of switching becket 70 is arranged according to the actual requirements, and broadband DWDM wave filter 60 is bonded in switching becket and is placed in the position in TO shell 10.By the switching becket 70 that flatness is high, broadband DWDM wave filter 60 can be solved and occur that glue line became uneven is difficult to situation about sealing, it is also possible to solve be difficult to bonding because of what TO shell 10 air spots caused and be difficult to situation about sealing.
Although specifically showing in conjunction with preferred embodiment and describing this utility model; but those skilled in the art should be understood that; in the spirit and scope of the present utility model limited without departing from appended claims; in the form and details this utility model is made a variety of changes, be protection domain of the present utility model.
Claims (9)
1. a tunable wave length ROSA, including TO shell, TO base, the PD that is located on TO base, it is characterised in that: also include tunable narrow-band wave filter and the lenticule being fixed on TO housing window；Optical signal, after tunable narrow-band filter filtering, is received by PD after micro lens.
2. Wavelength tunable ROSA as claimed in claim 1, it is characterised in that: also include a broadband DWDM wave filter, be fixed on the window of TO shell, be positioned at before adjustable narrow band filter；Optical signal first, after broadband DWDM wave filter carries out one-level filtering, enters back into adjustable narrow band filter and carries out secondary filter.
3. tunable wave length ROSA as claimed in claim 2, it is characterised in that: described broadband DWDM wave filter is multiple smooth bonding compositions of filter plate superposition.
4. tunable wave length ROSA as claimed in claim 3, it is characterised in that: after the plurality of smooth filter plate superposition is bonding, its logical bright finish is processed as round-shaped with what TO housing window size adapted.
5. tunable wave length ROSA as claimed in claim 2, it is characterised in that: at described TO housing window, there is multilayer steps, be respectively used to fixed broadband DWDM wave filter, tunable narrow-band wave filter and lenticule.
6. tunable wave length ROSA as claimed in claim 2, it is characterised in that: described broadband DWDM wave filter is adhered on a switching becket, then is fixed on the window of TO shell by switching becket.
7. tunable wave length ROSA as claimed in claim 6, it is characterised in that: described switching becket is flange shape.
8. tunable wave length ROSA as described in any one of claim 1-7, it is characterised in that: described tunable narrow-band wave filter is that Si heats etalon, and it is coated with heating resistive film.
9. tunable wave length ROSA as described in any one of claim 1-7, it is characterised in that: described tunable narrow-band wave filter is that Si heats etalon, is fixed on a heating fixed support, and described heating fixed support is packaged in TO shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620419963.XU CN205581348U (en) | 2016-05-11 | 2016-05-11 | Tunable ROSA of wavelength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620419963.XU CN205581348U (en) | 2016-05-11 | 2016-05-11 | Tunable ROSA of wavelength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205581348U true CN205581348U (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620419963.XU Active CN205581348U (en) | 2016-05-11 | 2016-05-11 | Tunable ROSA of wavelength |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333695A (en) * | 2018-04-03 | 2018-07-27 | 大连藏龙光电子科技有限公司 | Tunable receiving end shell based on NGPON2 technologies and receiving terminal component |
| CN108508552A (en) * | 2018-04-09 | 2018-09-07 | 青岛海信宽带多媒体技术有限公司 | A kind of light-receiving secondary module and optical module |
-
2016
- 2016-05-11 CN CN201620419963.XU patent/CN205581348U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333695A (en) * | 2018-04-03 | 2018-07-27 | 大连藏龙光电子科技有限公司 | Tunable receiving end shell based on NGPON2 technologies and receiving terminal component |
| CN108508552A (en) * | 2018-04-09 | 2018-09-07 | 青岛海信宽带多媒体技术有限公司 | A kind of light-receiving secondary module and optical module |
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| GR01 | Patent grant |