CN203732809U - Wave-combining and wave-splitting optical assembly - Google Patents
Wave-combining and wave-splitting optical assembly Download PDFInfo
- Publication number
- CN203732809U CN203732809U CN201420090685.9U CN201420090685U CN203732809U CN 203732809 U CN203732809 U CN 203732809U CN 201420090685 U CN201420090685 U CN 201420090685U CN 203732809 U CN203732809 U CN 203732809U
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- film
- wave
- prism
- filters
- optical assembly
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Abstract
The utility model relates to a wave-combining and wave-splitting optical assembly, which comprises a prism, a filter group, an HR film and an AR film, wherein the filter group comprises four independent filters and is arranged at one side of the prism; the AR film is plated at the other side of the prism and parallel to the filter group; the HR film comprises a first HR film and a second HR film, and the first HR film and the AR film are arranged at the same side of the prism; and the second HR film and the filter group are arranged at the same side of the prism. The thickness of the prism is decreased by one time under the condition of not changing the spacing of incident/outgoing beams of the wave-combining and wave-splitting optical assembly, and the incident/outgoing beams are enabled to reach good parallelism at the same time.
Description
Technical field
The utility model relates to the optical device in a kind of fiber optic communication field, more particularly, relates to one and closes wave separater optical assembly.
Background technology
In free optical communication network, light beam closes ripple, partial wave has a variety of implementations.Wherein Fig. 1 is that four-way light beam conventional in SFP optical transceiver module closes ripple, partial wave optical module light channel structure schematic diagram.In Fig. 1, partial wave closes ripple assembly 100 and comprises prism (Prism) 110, bank of filters 120, HR film 130 and AR film 140, and wherein bank of filters 120 comprises four independent wave filters, is arranged on a side of prism 110; HR film 130 and AR film 140 are plated in the same side of prism 110, and parallel with bank of filters 120.Simultaneously by the schematic diagram that can find out the input and output of light in Fig. 1.
But, along with device miniaturization and integrated requirement more and more higher, corresponding optical module size also needs to change, and needs to be optimized the structure of optical module.
Utility model content
The technical problems to be solved in the utility model is, reduces the size of optical module, improves the integrated level of optical module.
The utility model solves the technical scheme that its technical matters adopts: one is closed wave separater optical assembly, comprises prism, bank of filters, HR film and AR film, and wherein bank of filters comprises four independent wave filters, is arranged on a side of prism; AR film is plated in the opposite side of prism, and parallel with bank of filters; HR film comprises a HR film and the 2nd HR film, and wherein a HR film and AR film are arranged on the same side of prism; The 2nd HR film and bank of filters setting are in the same side of prism.
Wherein, preferred implementation is: the 2nd HR film is arranged on the interval of four independent wave filters that bank of filters comprises.
Implement the wave separater optical assembly that closes of the present utility model, there is following beneficial effect: between four independent wave filters of bank of filters 120, increase by the 2nd HR film 220, make to close in the constant situation of incident/outgoing beam spacing of wave separater optical assembly, the thickness of prism 110 reduces one times; The mode that adopts the direct interval plating in back side HR film, makes incident/outgoing beam reach the good depth of parallelism.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the light channel structure schematic diagram that closes wave separater optical assembly of the prior art.
Fig. 2 is the light channel structure schematic diagram that the utility model closes wave separater optical assembly.
Fig. 3 is the light channel structure vertical view that the utility model closes wave separater optical assembly.
Embodiment
For making that the purpose of this utility model, structural attitude and function thereof are had to further understanding, coordinate accompanying drawing to be described in detail as follows:
As shown in Figure 2, close in the preferred embodiment of wave separater optical assembly at the utility model, this closes wave separater optical assembly and comprises prism (Prism) 110, bank of filters 120, HR film 200 and AR film 140.Wherein, bank of filters 120 comprises four independent wave filters, is arranged on a side of prism 110; AR film 140 is plated in the opposite side of prism 110, and parallel with bank of filters 120.
Further, HR film 200 comprises a HR film 210 and the 2nd HR film 220, and wherein a HR film 210 and AR film 140 are arranged on the same side of prism 110; Meanwhile, the 2nd HR film 220 and bank of filters 120 are arranged on the same side of prism.Further, the 2nd HR film 220 is arranged on the interval of the independent wave filter that bank of filters 120 comprises, as shown in Figure 3.Fig. 3 is the vertical view that closes wave separater optical assembly of the present utility model, as can be seen from Figure, the 2nd HR film 220 is arranged on four independent wave filter intervals that bank of filters 220 comprises, wherein incident/outgoing beam reflect via the 2nd HR film 220 after incident/outgoing again, reach the good depth of parallelism.
Implement the wave separater optical assembly that closes of the present utility model, there is following beneficial effect: between four independent wave filters of bank of filters 120, increase by the 2nd HR film 220, make to close in the constant situation of incident/outgoing beam spacing of wave separater optical assembly, the thickness of prism 110 reduces one times; The mode that adopts the direct interval plating in back side HR film, makes incident/outgoing beam reach the good depth of parallelism.
Above embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement accordingly, can not limit protection domain of the present utility model.All equalizations of doing with the utility model claim scope change and modify, and all should belong to the covering scope of the utility model claim.
Claims (2)
1. close a wave separater optical assembly, comprise prism, bank of filters, HR film and AR film, wherein bank of filters comprises four independent wave filters, is arranged on a side of prism; AR film is plated in the opposite side of prism, and parallel with bank of filters; It is characterized in that: HR film comprises a HR film and the 2nd HR film, and wherein a HR film and AR film are arranged on the same side of prism; The 2nd HR film and bank of filters setting are in the same side of prism.
2. the wave separater optical assembly that closes as claimed in claim 1, is characterized in that: the 2nd HR film is arranged on the interval of four independent wave filters that bank of filters comprises.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420090685.9U CN203732809U (en) | 2014-02-28 | 2014-02-28 | Wave-combining and wave-splitting optical assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420090685.9U CN203732809U (en) | 2014-02-28 | 2014-02-28 | Wave-combining and wave-splitting optical assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203732809U true CN203732809U (en) | 2014-07-23 |
Family
ID=51202871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420090685.9U Expired - Fee Related CN203732809U (en) | 2014-02-28 | 2014-02-28 | Wave-combining and wave-splitting optical assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203732809U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111936914A (en) * | 2018-04-05 | 2020-11-13 | 三菱电机株式会社 | Optical multiplexer/demultiplexer and method of manufacturing the same |
-
2014
- 2014-02-28 CN CN201420090685.9U patent/CN203732809U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111936914A (en) * | 2018-04-05 | 2020-11-13 | 三菱电机株式会社 | Optical multiplexer/demultiplexer and method of manufacturing the same |
| CN111936914B (en) * | 2018-04-05 | 2022-03-11 | 三菱电机株式会社 | Optical multiplexer/demultiplexer and method of manufacturing the same |
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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: 20140723 Termination date: 20190228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |