JPS6470723A - Optical switch - Google Patents
Optical switchInfo
- Publication number
- JPS6470723A JPS6470723A JP22700687A JP22700687A JPS6470723A JP S6470723 A JPS6470723 A JP S6470723A JP 22700687 A JP22700687 A JP 22700687A JP 22700687 A JP22700687 A JP 22700687A JP S6470723 A JPS6470723 A JP S6470723A
- Authority
- JP
- Japan
- Prior art keywords
- optical
- wave
- devices
- phase
- prism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE:To operate an optical switch with low pressure and to eliminate polarization dependency from it, by providing two optical switching devices in an optical path, matching the phases of emitting light with each other, and synthesizing and outputting them. CONSTITUTION:The incident light of an optical signal fiber having polarization is changed to a parallel ray, and is made incident on a prism 1, and is separated and emitted as a TM wave and a TE wave. The TM wave progresses straight, and its phase is deviated by half wavelength at a 1/2-wave plate 4, then, it is changed to the TE wave, and is inputted to the optical switching device 2. Meanwhile, the TE wave emitted in a perpendicular direction by the prism 1 is reflected and converged by an optical transfer means 5, then, inputted to the optical switching device 3. And by sending an ON control signal to the devices 2 and 3, the devices 2 and 3 are turned on. Since the phase matching between the output of the device 3 and that of the device 2 is performed at an optical phase shifter 6, and they are synthesized by a synthesis means 7, and are outputted as output light, it is possible to obtain a signal with a superior extinction ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22700687A JPS6470723A (en) | 1987-09-10 | 1987-09-10 | Optical switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22700687A JPS6470723A (en) | 1987-09-10 | 1987-09-10 | Optical switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6470723A true JPS6470723A (en) | 1989-03-16 |
Family
ID=16854032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22700687A Pending JPS6470723A (en) | 1987-09-10 | 1987-09-10 | Optical switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6470723A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03139672A (en) * | 1989-10-13 | 1991-06-13 | Xerox Corp | Multibeam exposure controller |
| JPH03144519A (en) * | 1989-10-13 | 1991-06-19 | Xerox Corp | Multiple beam optical modulator |
| WO2009084545A1 (en) * | 2007-12-28 | 2009-07-09 | Sumitomo Osaka Cement Co., Ltd. | Optical modulator |
| WO2013176270A1 (en) * | 2012-05-25 | 2013-11-28 | 住友大阪セメント株式会社 | Optical modulator |
| WO2014051096A1 (en) * | 2012-09-28 | 2014-04-03 | 住友大阪セメント株式会社 | Optical modulator and optical modulation method |
-
1987
- 1987-09-10 JP JP22700687A patent/JPS6470723A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03139672A (en) * | 1989-10-13 | 1991-06-13 | Xerox Corp | Multibeam exposure controller |
| JPH03144519A (en) * | 1989-10-13 | 1991-06-19 | Xerox Corp | Multiple beam optical modulator |
| WO2009084545A1 (en) * | 2007-12-28 | 2009-07-09 | Sumitomo Osaka Cement Co., Ltd. | Optical modulator |
| JP2009162830A (en) * | 2007-12-28 | 2009-07-23 | Sumitomo Osaka Cement Co Ltd | Light modulator |
| US8406577B2 (en) | 2007-12-28 | 2013-03-26 | Sumitomo Osaka Cement Co., Ltd. | Optical modulator |
| WO2013176270A1 (en) * | 2012-05-25 | 2013-11-28 | 住友大阪セメント株式会社 | Optical modulator |
| JP2013246325A (en) * | 2012-05-25 | 2013-12-09 | Sumitomo Osaka Cement Co Ltd | Optical modulator |
| US9448457B2 (en) | 2012-05-25 | 2016-09-20 | Sumitomo Osaka Cement Co., Ltd. | Optical modulator |
| WO2014051096A1 (en) * | 2012-09-28 | 2014-04-03 | 住友大阪セメント株式会社 | Optical modulator and optical modulation method |
| JPWO2014051096A1 (en) * | 2012-09-28 | 2016-08-25 | 住友大阪セメント株式会社 | Optical modulator and optical modulation method |
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