CN201845127U - Adjustable filter - Google Patents
Adjustable filter Download PDFInfo
- Publication number
- CN201845127U CN201845127U CN2010202868266U CN201020286826U CN201845127U CN 201845127 U CN201845127 U CN 201845127U CN 2010202868266 U CN2010202868266 U CN 2010202868266U CN 201020286826 U CN201020286826 U CN 201020286826U CN 201845127 U CN201845127 U CN 201845127U
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- dwdm
- etalon
- filter
- cavity
- adjustable
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- Expired - Fee Related
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Abstract
The utility model relates to the field of optical communication devices, in particular to an adjustable filter, which is arranged on a light path between two collimators. A DWDM (dense wavelength division multiplexing) film filter and a multi-cavity etalon are arranged on the light path. An angel rotator is arranged on the DWDM film filter. The DWDM film filter is a conventional broadband DWDM film filter. The angle rotator comprises a motor link angle rotating component. By adopting the technical scheme, the miniaturized adjustable filter with lower cost is realized. Compared with presently general tunable filters, the adjustable filter meets filter waveforms, and coating difficulty and cost for devices are reduced effectively by the aid of the etalon.
Description
Technical field
The utility model relates to the optical communication device field, relates in particular to a kind of adjustable filter.
Background technology
Be the capacity requirement of the optical communication network that satisfies current rapid growth, the channelized frequencies that reduces DWDM (Dense Wavelength Division Multiplexing, intensive multiplexed optical wave with) system is a main solution at interval.Along with being multiplied of transmission channel, as the filter (dielectric film optical filter) of tunable optic filter, its manufacturing and optical coating technology have been brought sizable difficulty.Therefore, the system development merchant is seeking a kind of more miniaturization, more economic solution.
The utility model content
Therefore, the utility model is at above-mentioned requirements, proposes a kind of miniaturization, and the scheme that cost is cheaper has realized a kind of adjustable filter.
The utility model adopts following technical scheme:
A kind of adjustable filter is arranged on the light path between two collimating apparatuss.Wherein, a DWDM membrane filtration mating plate and a multi-cavity etalon are set on light path, described DWDM membrane filtration mating plate is provided with angle rotor.
Further, described DWDM membrane filtration mating plate is conventional broadband DWDM membrane filtration mating plate.
Further, described angle rotor is that motor connects the angle rotor that the angle rotating member is formed.
Further, the described multi-cavity etalon cascade structure that is Solid Cavity or air chamber or the two combination.
Further, described multi-cavity etalon is the etalon structure that heat-sensitive material is made.
Perhaps, described multi-cavity etalon is the etalon structure that electrooptical material is made.
Further, described multi-cavity etalon is provided with a tuning device.
Further, be the etalon structure that ordinary optical material or heat-sensitive material or electrooptical material are made according to described multi-cavity etalon, described tuning device can be mechanical tuning device or thermal tuning device or electro-optical tuning device.
The utility model adopts as above technical scheme, has realized a kind of miniaturization, adjustable filter that cost is cheaper.It is with respect to present general tunable filter diaphragm, and the utility model had both had the filtering of satisfying waveform, utilized Etalon (etalon) to effectively reduce the plated film difficulty and the cost of device again.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a relatively synoptic diagram of DWDM membrane filtration mating plate (DWDM filter) anglec of rotation Time Bandwidth;
When Fig. 3 is DWDM membrane filtration mating plate (DWDM filter) anglec of rotation, the transmitted light spectrogram that experiment measuring obtains.
Embodiment
Now with embodiment the utility model is further specified in conjunction with the accompanying drawings.
The purpose of this utility model has provided a kind of miniaturization, Eco-power raising tunable optic filter.Conventional broadband DWDM membrane filtration mating plate (DWDM filter) and two-chamber or multi-cavity etalon with flat-top filtering waveform (Flat-Top) are combined.Etalon can be along with the increase of plated film reflectivity, and its spectral width can reduce, and under the situation of using a plurality of etalons, spectrum can present flat-top filtering waveform (Flat-Top).Conventional broadband DWDM membrane filtration mating plate (DWDM filter) and tunable multi-cavity etalon are used, just can realize the tunable optic filter function.
Consult Fig. 1,101 is collimating apparatus, and 102 is a DWDM membrane filtration mating plate (DWDM filter), and 103 is a tunable multi-cavity etalon, and 104 is another collimating apparatus.In the present embodiment, preferred, described DWDM membrane filtration mating plate 102 is conventional broadband DWDM membrane filtration mating plates.Described angle rotor 1021 is that motor connects the angle rotor that the angle rotating member is formed.Described multi-cavity etalon 103 can be the cascade structure of Solid Cavity or air chamber or the two combination.Described multi-cavity etalon 103 be the etalon structure made of heat-sensitive material or, described multi-cavity etalon 103 is etalon structures that electrooptical material is made.Described multi-cavity etalon 103 is provided with a tuning device 1031.According to described multi-cavity etalon 103 are etalon structures that ordinary optical material or heat-sensitive material or electrooptical material are made, and described tuning device 1031 can be mechanical tuning device or thermal tuning device or electro-optical tuning device.
Consult shown in Figure 2ly, DWDM membrane filtration mating plate 102 becomes big with incident angle, and its center zone bandwidth can progressively narrow down, but its center zone bandwidth is more smooth.
Experimental result such as Fig. 3, rotational angle spend to 10 degree from 0, see through centre wavelength and move to 1550nm from 1562nm, and the central area bandwidth slowly narrows down, and its central area is still more smooth.
This scheme is exploitation 5G, and 10G, narrower tunble of following generation such as 12.5G filter provide a kind of effective scheme, and technical difficulty is relatively low, have cost advantage preferably.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; in the spirit and scope of the present utility model that do not break away from appended claims and limited; can make various variations to the utility model in the form and details, be protection domain of the present utility model.
Claims (8)
1. adjustable filter, be arranged on the light path between two collimating apparatuss (101,104), it is characterized in that: a DWDM membrane filtration mating plate (102) and a multi-cavity etalon (103) are set on light path, and described DWDM membrane filtration mating plate (102) is provided with angle rotor (1021).
2. adjustable filter according to claim 1 is characterized in that: described DWDM membrane filtration mating plate (102) is a broadband DWDM membrane filtration mating plate.
3. adjustable filter according to claim 1 is characterized in that: described angle rotor (1021) is that motor connects the angle rotor that the angle rotating member is formed.
4. adjustable filter according to claim 1 is characterized in that: described multi-cavity etalon (103) is the cascade structure of Solid Cavity or air chamber or the two combination.
5. according to claim 1 or 4 described adjustable filters, it is characterized in that: described multi-cavity etalon (103) is the etalon structure that heat-sensitive material is made.
6. according to claim 1 or 4 described adjustable filters, it is characterized in that: described multi-cavity etalon (103) is the etalon structure that electrooptical material is made.
7. according to claim 1 or 4 described adjustable filters, it is characterized in that: described multi-cavity etalon (103) is provided with a tuning device (1031).
8. adjustable filter according to claim 7 is characterized in that: described tuning device (1031) is mechanical tuning device or thermal tuning device or electro-optical tuning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202868266U CN201845127U (en) | 2010-08-04 | 2010-08-04 | Adjustable filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202868266U CN201845127U (en) | 2010-08-04 | 2010-08-04 | Adjustable filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201845127U true CN201845127U (en) | 2011-05-25 |
Family
ID=44040014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202868266U Expired - Fee Related CN201845127U (en) | 2010-08-04 | 2010-08-04 | Adjustable filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201845127U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323644A (en) * | 2011-09-15 | 2012-01-18 | 武汉朗睿科技有限公司 | Tunable filter based on rotary optical filter and filtering method thereof |
| CN103018837A (en) * | 2011-09-28 | 2013-04-03 | 福州高意光学有限公司 | Dimmable filter |
| CN103857993A (en) * | 2011-06-17 | 2014-06-11 | 纽波特公司 | Solar simulator and ultraviolet filter system for use in solar simulators |
| CN104917048A (en) * | 2015-07-06 | 2015-09-16 | 大连藏龙光电子科技有限公司 | Small packaged long-distance transmission DFB laser |
| CN108732744A (en) * | 2018-05-07 | 2018-11-02 | 王念 | A kind of MEMS tunable optical filters |
| CN112964361A (en) * | 2021-02-05 | 2021-06-15 | 上海新产业光电技术有限公司 | Tunable filter, spectrum detection device and spectrum information acquisition method |
-
2010
- 2010-08-04 CN CN2010202868266U patent/CN201845127U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103857993A (en) * | 2011-06-17 | 2014-06-11 | 纽波特公司 | Solar simulator and ultraviolet filter system for use in solar simulators |
| CN102323644A (en) * | 2011-09-15 | 2012-01-18 | 武汉朗睿科技有限公司 | Tunable filter based on rotary optical filter and filtering method thereof |
| CN102323644B (en) * | 2011-09-15 | 2014-07-23 | 武汉朗睿科技有限公司 | Tunable filter based on rotary optical filter and filtering method thereof |
| CN103018837A (en) * | 2011-09-28 | 2013-04-03 | 福州高意光学有限公司 | Dimmable filter |
| CN104917048A (en) * | 2015-07-06 | 2015-09-16 | 大连藏龙光电子科技有限公司 | Small packaged long-distance transmission DFB laser |
| CN108732744A (en) * | 2018-05-07 | 2018-11-02 | 王念 | A kind of MEMS tunable optical filters |
| CN112964361A (en) * | 2021-02-05 | 2021-06-15 | 上海新产业光电技术有限公司 | Tunable filter, spectrum detection device and spectrum information acquisition method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20180804 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |