CN202512302U - Polarization optical modulator - Google Patents
Polarization optical modulator Download PDFInfo
- Publication number
- CN202512302U CN202512302U CN2012201949087U CN201220194908U CN202512302U CN 202512302 U CN202512302 U CN 202512302U CN 2012201949087 U CN2012201949087 U CN 2012201949087U CN 201220194908 U CN201220194908 U CN 201220194908U CN 202512302 U CN202512302 U CN 202512302U
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- light
- walk
- crystal
- angle
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Abstract
The utility model discloses a polarization optical modulator, which comprises a Walk-off crystal and a wedge angle sheet, wherein the Walk-off crystal is adjacent to the wedge angle sheet; and the wedge angle sheet is arranged on the light emergent surface of the Walk-off crystal. According to the polarization optical modulator, the wedge angle sheet is arranged on the light emergent surface of the Walk-off crystal to compensate polarized light which is emitted, so that emergent light which is high in parallelism is obtained, the quality of optical design is improved, and the precision of optical devices is further improved.
Description
Technical field
The utility model relates to optics and laser field, relates in particular to a kind of polarization optics modulator.
Background technology
Usually do not have strictness through the o light of Walk-off crystal outgoing and e light and be parallel to each other, the angle of o light and e light can reach 0.016 °-0.019 ° sometimes, and this is inapplicable beyond doubt to some occasions that o light and e parallel light degree are had relatively high expectations.
As shown in Figure 1, through Walk-off crystal and the o light of outgoing and the angle △ θ of e light are 0.016 °-0.019 °.In this explanation is that the angle △ θ of o light and e light is the angle of o light and e light exit direction.
Summary of the invention
Pass through the o light of Walk-off crystal outgoing and the certain angle of existence of e light for solving above-mentioned prior art, but not the parallel technical matters that causes the optical design quality to reduce, the utility model adopts following technical scheme:
A kind of polarization optics modulator, it comprises: Walk-off crystal and angle of wedge sheet, the adjacent setting of said Walk-off crystal with angle of wedge sheet, said angle of wedge sheet is arranged on the beam projecting face of Walk-off crystal.
Further, said angle of wedge sheet is arranged on the emitting light path direction of e light.
Further, said angle of wedge sheet is arranged on the emitting light path direction of o light.
The beneficial effect of the utility model is: the utility model is provided with angle of wedge sheet through the beam projecting face at the Walk-off crystal; Polarized light to going out to penetrate compensates; Thereby obtain very high o light and the e light of the depth of parallelism, improved the quality of optical design, accuracy further promotes.
Description of drawings
Fig. 1 is the light path synoptic diagram of a kind of polarization optics modulator of prior art;
Fig. 2 is a kind of polarized light modulator first embodiment synoptic diagram of the utility model;
Fig. 3 is a kind of polarized light modulator second embodiment synoptic diagram of the utility model.
Embodiment
Specify the preferred embodiment of the utility model below in conjunction with accompanying drawing.
See also Fig. 2, it is a kind of polarized light modulator first embodiment synoptic diagram of the utility model:
The utility model provides a kind of polarization optics modulator, and it comprises: Walk-off crystal 20 and angle of wedge sheet 30.Wherein, Walk-off crystal 20 and the 30 adjacent settings of angle of wedge sheet.Angle of wedge sheet 30 is arranged on the beam projecting face of Walk-off crystal 20, and angle of wedge sheet 30 is arranged on the emitting light path direction of e light.Through emitting light path 30 pairs of e light of one angle of wedge sheet are set and compensate, thereby obtain very high o light and the e light of the depth of parallelism at e light.
See also Fig. 3, it is a kind of polarized light modulator second embodiment synoptic diagram of the utility model:
Compared to first embodiment, its distinctive points is: in a second embodiment, angle of wedge sheet 30 is arranged on the emitting light path direction of o light.
Through emitting light path 30 pairs of o light of one angle of wedge sheet are set and compensate, thereby obtain very high o light and the e light of the depth of parallelism at o light.
Compared to prior art; The utility model is provided with angle of wedge sheet 30 through the beam projecting face at Walk-off crystal 20, o light or the e light that goes out to penetrate is compensated, thereby obtain very high o light and the e light of the depth of parallelism; Improved the quality of optical design, accuracy further promotes.
Here description of the utility model and application is illustrative, is not to want the scope of the utility model is limited in the above-described embodiments.Here the distortion of the embodiment that is disclosed and change are possible, and the replacement of embodiment is known with the various parts of equivalence for those those of ordinary skill in the art.Those skilled in the art are noted that under the situation of spirit that does not break away from the utility model or essential characteristic, and the utility model can be with other form, structure, layout, ratio, and realize with other assembly, material and parts.Under the situation that does not break away from the utility model scope and spirit, can carry out other distortion and change here to the embodiment that is disclosed.
Claims (3)
1. a polarization optics modulator is characterized in that, comprising: Walk-off crystal and angle of wedge sheet, and the adjacent setting of said Walk-off crystal with angle of wedge sheet, said angle of wedge sheet is arranged on the beam projecting face of Walk-off crystal.
2. a kind of polarization optics modulator according to claim 1 is characterized in that said angle of wedge sheet is arranged on the emitting light path direction of e light.
3. a kind of polarization optics modulator according to claim 1 is characterized in that said angle of wedge sheet is arranged on the emitting light path direction of o light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201949087U CN202512302U (en) | 2012-05-03 | 2012-05-03 | Polarization optical modulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201949087U CN202512302U (en) | 2012-05-03 | 2012-05-03 | Polarization optical modulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202512302U true CN202512302U (en) | 2012-10-31 |
Family
ID=47064774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201949087U Expired - Lifetime CN202512302U (en) | 2012-05-03 | 2012-05-03 | Polarization optical modulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202512302U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107402415A (en) * | 2016-05-20 | 2017-11-28 | 福州高意光学有限公司 | A kind of complex optics angle of wedge piece and preparation method thereof |
-
2012
- 2012-05-03 CN CN2012201949087U patent/CN202512302U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107402415A (en) * | 2016-05-20 | 2017-11-28 | 福州高意光学有限公司 | A kind of complex optics angle of wedge piece and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121031 |
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| CX01 | Expiry of patent term |