CN205318029U - Multi -wavelength optical modulex based on graduated filter - Google Patents
Multi -wavelength optical modulex based on graduated filter Download PDFInfo
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- CN205318029U CN205318029U CN201620002706.6U CN201620002706U CN205318029U CN 205318029 U CN205318029 U CN 205318029U CN 201620002706 U CN201620002706 U CN 201620002706U CN 205318029 U CN205318029 U CN 205318029U
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Abstract
The utility model relates to a multi -wavelength optical modulex based on graduated filter. Including input light signal, optics substrate, graduated filter, the input light signal includes first, second, third and the fourth light signal of different wavelength, firstly pass through to the fourth light signal reach after the optics substrate graduated filter, and via follow the reflection of optics substrate, graduated filter reflection and transmission back graduated filter's different positions are passed through and are gone out. The utility model provides a multi -wavelength optical modulex based on graduated filter can effectively part the little adjacent wavelength in interval for small wavelength spaced multi -wavelength optical module subassembly can be realized and effective use.
Description
Technical field
This utility model relates to technical field of optical fiber communication, particularly relates to a kind of multi-wavelength optical module based on gradual filter in technical field of optical fiber communication.
Background technology
Owing to optical-fibre communications quickly grows, along with the lifting (such as transmission video image etc.) of simple optical fiber transmission capacity requirements, directly require the maximum width utilizing optical fiber. Wavelength-division multiplex (WDM) technology is for one of key technology improving transmission capacity. Multiple optical signals that each wavelength is different from each other are multiplexed by wdm system. In recent years, require the WDMization of optical module, such as, the TOSA carrying out the optical module of the light emission component of wavelength multiplexing as being used for there is the optical signal combining the different wave length sent from multiple light sources, it is known that have the TOSA formed a line by the CAN packaging part that four are held LD (laser diode) and configure to equidirectional. On the other hand, in recent years, it is desirable to the further miniaturization of the optical modules such as light transmitter receiver. Such as, it is desirable to corresponding to the transmitter receiver specification of 40 ~ 100GbE optical fiber connected and QSFP+(QuadSmallForm-factorPluggablePlus) corresponding small light transmitter receiver, especially require the small light transmitter receiver of WDM.
Draft according to the LAN-WDM standard drafted, to being respectively provided with the transmission speed that each wavelength is 25Gbps and four that frequency range is 800GHz optical signal multiplexes, to realize the transmission capacity of 100Gbps. The wavelength of corresponding optical signal is 1295.56nm, 1300.05nm, 1304.58nm, 1309.14nm. In LAN-WDM draft, the optical transceiver of regulation has the external dimensions following CFP (100G plug type) multi-source agreement (MSA). But, it is also very desirable to reduce size and the cost of optical transceiver further, in order to optical transceiver is installed in a communications device to high-density.
At present, the optical module of existing a kind of multi-wavelength partial wave is as it is shown in figure 1, separate 11,12,13,14 4 optical signals of optical signal respectively. Specific as follows: input optical signal 11,12,13,14 is after the first optical filter 41 transmission, and due to the first optical filter 41 optical signal transmissive 11 reflected light signal 12,13,14, therefore optical signal 11 exports;Optical signal 12,13,14 is reflexed to the second optical filter 42 by optical base-substrate 2, the second optical filter 42 optical signal transmissive 12 reflected light signal 13,14, is therefore exported by optical signal 12; Optical signal 13 and 14 arrives the 3rd optical filter 43, the 3rd optical filter 43 reflected light signal 14 optical signal transmissive 13 after being reflected by optical base-substrate 2, is therefore exported by optical signal 13; Optical signal 14 arrives the 4th optical filter 44, the 4th filter transmission optical signal 14 after being reflected by optical base-substrate 2, is finally exported by optical signal 14. But owing to the wavelength interval of four optical signals is very narrow, to such an extent as to causing optical filter 41,42,43,44 plated film very difficult, cost is high, and domestic plated film producer cannot realize. Even these commercial wavelength-division multiplex diaphragms, its passband width is very narrow, and incident angle sensitivity is significantly high, and insertion loss is very big.
The gradual filter that the utility model proposes can effectively separate adjacent wavelength little for interval in the application of multi-wavelength optical module, have that Insertion Loss is little, performance is better, the advantage such as lower in cost so that the optical module for multi-wavelength assembly at small wavelength interval is achieved and effectively uses.
Summary of the invention
The purpose of this utility model is in that to provide a kind of multi-wavelength optical module based on gradual filter, it is possible to adjacent wavelength little for interval is effectively separated so that the optical module for multi-wavelength assembly at small wavelength interval is achieved and effectively uses.
For achieving the above object, the technical solution of the utility model is: a kind of multi-wavelength optical module based on gradual filter, including input optical signal, optical base-substrate, gradual filter, described input optical signal includes the first, second, third and fourth optical signal of different wave length, described first to fourth optical signal arrives described gradual filter after described optical base-substrate, and via after described reflection from optical substrates, gradual filter reflection and transmission, go out from the diverse location transmission of described gradual filter.
In this utility model one embodiment, described first to fourth optical signal arrives the primary importance of described gradual filter after described optical base-substrate, transmit the first optical signal, and reflect the second to the 4th optical signal, described second to the 4th optical signal is through the second position of described reflection from optical substrates to described gradual filter, transmit the second optical signal, and reflect the 3rd to the 4th optical signal, described 3rd to the 4th optical signal is through the 3rd position of described reflection from optical substrates to described gradual filter, transmit the 3rd optical signal, and reflect the 4th optical signal, described 4th optical signal is through the 4th position of described reflection from optical substrates to described gradual filter, transmit the 4th optical signal.
In this utility model one embodiment, the wavelength of described first, second, third and fourth optical signal is incremented by successively.
In this utility model one embodiment, the transmission wave band of described gradual filter and reflected waveband change along with gradual filter change in location.
Compared to prior art, this utility model has the advantages that
1. employing gradual filter, the transmission wave band of gradual filter and reflected waveband change along with gradual filter change in location;
2, gradual filter can effectively separate adjacent wavelength little for interval, thus realizing the low cost commercialization of multi-wavelength optical module.
Accompanying drawing explanation
The existing a kind of multi-wavelength of Fig. 1 optical module index path separately.
In Fig. 2 this utility model in multi-wavelength optical module module, gradual filter application schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is specifically described.
A kind of multi-wavelength optical module based on gradual filter of the present utility model, including input optical signal, optical base-substrate, gradual filter, described input optical signal includes the first, second, third and fourth optical signal of different wave length, described first to fourth optical signal arrives described gradual filter after described optical base-substrate, and via after described reflection from optical substrates, gradual filter reflection and transmission, go out from the diverse location transmission of described gradual filter; Concrete,
Described first to fourth optical signal arrives the primary importance of described gradual filter after described optical base-substrate, transmit the first optical signal, and reflect the second to the 4th optical signal, described second to the 4th optical signal is through the second position of described reflection from optical substrates to described gradual filter, transmit the second optical signal, and reflect the 3rd to the 4th optical signal, described 3rd to the 4th optical signal is through the 3rd position of described reflection from optical substrates to described gradual filter, transmit the 3rd optical signal, and reflect the 4th optical signal, described 4th optical signal is through the 4th position of described reflection from optical substrates to described gradual filter, transmit the 4th optical signal.
The transmission wave band of described gradual filter and reflected waveband change along with gradual filter change in location.
The technical solution of the utility model is told about below by way of specific embodiment.
Refer to Fig. 2, a kind of multi-wavelength optical module based on gradual filter of the present utility model, including the first optical signal 11, the second optical signal 12, the 3rd optical signal 13, the 4th optical signal 14, optical base-substrate 2, gradual filter 3. First optical signal to the 4th optical signal has wavelength (wavelength of described first, second, third and fourth optical signal is incremented by successively) different from each other. By 11,12,13,14 4 optical signals of optical signal separately. Specific as follows: first optical signal the 11, second optical signal the 12, the 3rd optical signal the 13, the 4th optical signal 14 arrives gradual filter 3 position a after optical base-substrate 2, gradual filter position a place transmission the first optical signal 11 reflects the second optical signal the 12, the 3rd optical signal the 13, the 4th optical signal 14, therefore the first optical signal 11 transmission output; Second optical signal the 12, the 3rd optical signal the 13, the 4th optical signal 14 is reflexed to gradual filter 3 position b by optical base-substrate 2, gradual filter 3 position b place transmission the second optical signal 12 reflects the 3rd optical signal 13 and the 4th optical signal 14, therefore the second optical signal 12 transmission is exported; 3rd optical signal 13 and the 4th optical signal 14 arrive gradual filter 3 position c after being reflected by optical base-substrate 2, and c place transmission the 3rd flashlight 13 in gradual filter 3 position reflects the 4th optical signal 14, therefore the 3rd optical signal 13 transmission are exported; 4th flashlight 14 arrives gradual filter 3 position d, gradual filter 3 position d place transmission the 4th optical signal 14 by optical base-substrate 2 after being reflected, finally the 4th flashlight 14 transmission exported.
It is above preferred embodiment of the present utility model, all changes made according to technical solutions of the utility model, when produced function is without departing from the scope of technical solutions of the utility model, belong to protection domain of the present utility model.
Claims (4)
1. the multi-wavelength optical module based on gradual filter, it is characterized in that: include input optical signal, optical base-substrate, gradual filter, described input optical signal includes the first, second, third and fourth optical signal of different wave length, described first to fourth optical signal arrives described gradual filter after described optical base-substrate, and via after described reflection from optical substrates, gradual filter reflection and transmission, go out from the diverse location transmission of described gradual filter.
2. a kind of multi-wavelength optical module based on gradual filter according to claim 1, it is characterized in that: described first to fourth optical signal arrives the primary importance of described gradual filter after described optical base-substrate, transmit the first optical signal, and reflect the second to the 4th optical signal, described second to the 4th optical signal is through the second position of described reflection from optical substrates to described gradual filter, transmit the second optical signal, and reflect the 3rd to the 4th optical signal, described 3rd to the 4th optical signal is through the 3rd position of described reflection from optical substrates to described gradual filter, transmit the 3rd optical signal, and reflect the 4th optical signal, described 4th optical signal is through the 4th position of described reflection from optical substrates to described gradual filter, transmit the 4th optical signal.
3. a kind of multi-wavelength optical module based on gradual filter according to claim 1 and 2, it is characterised in that: the wavelength of described first, second, third and fourth optical signal is incremented by successively.
4. a kind of multi-wavelength optical module based on gradual filter according to claim 1 and 2, it is characterised in that: the transmission wave band of described gradual filter and reflected waveband change along with gradual filter change in location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620002706.6U CN205318029U (en) | 2016-01-05 | 2016-01-05 | Multi -wavelength optical modulex based on graduated filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620002706.6U CN205318029U (en) | 2016-01-05 | 2016-01-05 | Multi -wavelength optical modulex based on graduated filter |
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| Publication Number | Publication Date |
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| CN205318029U true CN205318029U (en) | 2016-06-15 |
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| CN201620002706.6U Active CN205318029U (en) | 2016-01-05 | 2016-01-05 | Multi -wavelength optical modulex based on graduated filter |
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2016
- 2016-01-05 CN CN201620002706.6U patent/CN205318029U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 350015 five floors and three floors of building a and building B, building 1, Chashan Road, Mawei science and Technology Park, Fuzhou City, Fujian Province Patentee after: Tengjing Technology Co., Ltd Address before: 350015, tea mountain road, Mawei hi tech park, Fujian, Fuzhou Patentee before: FUZHOU TENGJING OPTOELECTRONICS TECHNOLOGY CO., LTD. |
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| CP03 | Change of name, title or address |