KR940017374A - Optical Fiber Time Division Multiplexer Using Polarization Modulated Sagnac Interferometer - Google Patents
Optical Fiber Time Division Multiplexer Using Polarization Modulated Sagnac Interferometer Download PDFInfo
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- KR940017374A KR940017374A KR1019920025027A KR920025027A KR940017374A KR 940017374 A KR940017374 A KR 940017374A KR 1019920025027 A KR1019920025027 A KR 1019920025027A KR 920025027 A KR920025027 A KR 920025027A KR 940017374 A KR940017374 A KR 940017374A
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- KR
- South Korea
- Prior art keywords
- optical fiber
- demultiplexer
- interferometer
- coupler
- light
- Prior art date
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Abstract
본 발명은 광통신 소자의 일종인 고속 완정광 시분할 역다중 소장에 관련된 것이다.The present invention relates to a high-speed slow light time division demultiplexing, which is a kind of optical communication element.
특히 이소자 구도는 종래의 광섬유 역 다중기 구성이 특수한 부품을 사용하거나 다수의 일반적인 부품들을 나열하는 것에 비해 소수의 일반적인 광 부품을 사용하여 역다중기를 구성하였다.In particular, the device composition has constructed a demultiplexer using a few general optical components, compared to the conventional optical fiber demultiplexer configuration using a special component or a number of general components.
역다중기로 사용하는 사냑 간섭계의 광 분리/결합기로서 3dB 분리/결합기를 사용하는 기존의 방법과는 달리 편광 분리/결합기를 사용하여 간섭계내에 유도된 위상변화를 세기의 형태가 아닌 편광 상태의 변화 형태로 변환시켜 주는 원리를 이용한다. 간섭계 두팔로 진행하는 신호광들은 그 평광 상태가 서로 수직이며 조절광은 이중에 하나에만 비성형 굴절율을 유도시켜 변화된 위상 변화가 결국 신호광 전체 편광율 90°변화시켜 편광 분리/결합기에 의해 분리된다.Unlike the conventional method of using 3dB splitter / coupler as the optical splitter / coupler for the Sagnac interferometer used as the demultiplexer, the phase change induced in the interferometer using the polarized splitter / coupler is not the intensity of the change of the polarization state. Use the principle of converting to. The signal light propagating through the interferometer arms is perpendicular to each other, and the control light induces a non-molded refractive index in only one of them.
이때 사용하는 조절광과 신호광이 분리를 용이하도록 반파장판(광섬유 편광 조절기)을 사용한다.In this case, a half-wave plate (optical fiber polarization controller) is used to facilitate separation of the control light and the signal light.
본 발명의 핵심을 장파장(1.5㎛)용 통신에 적합하며 비교적 실용화가 가능하도록 광원들과 적은 갯수의 일반적인 광섬유 소자들로 이루어진 광섬유 역다중기 구도에 있다.The core of the present invention is an optical fiber demultiplexer composed of light sources and a small number of general optical fiber elements, which are suitable for long wavelength (1.5 μm) communication and are relatively practical.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제3도는 본 발명인 편광변조 사냑 간섭계를 이용한 광섬유 역다중기의 구성도. 제4도는 간섭계로 입사되는 광이 편광방향에 따라서 광섬유 편광 분리/결합기에 의해 분리/결합되는 모양을 나타낸다.3 is a block diagram of an optical fiber demultiplexer using a polarization modulated Sagnac interferometer according to the present invention. 4 is a view in which light incident on an interferometer is separated / coupled by an optical fiber polarization splitter / combiner according to a polarization direction.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019920025027A KR940017374A (en) | 1992-12-22 | 1992-12-22 | Optical Fiber Time Division Multiplexer Using Polarization Modulated Sagnac Interferometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019920025027A KR940017374A (en) | 1992-12-22 | 1992-12-22 | Optical Fiber Time Division Multiplexer Using Polarization Modulated Sagnac Interferometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR940017374A true KR940017374A (en) | 1994-07-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019920025027A KR940017374A (en) | 1992-12-22 | 1992-12-22 | Optical Fiber Time Division Multiplexer Using Polarization Modulated Sagnac Interferometer |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR940017374A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100848738B1 (en) * | 2007-03-26 | 2008-07-25 | 부산대학교 산학협력단 | Compensator for polarization dependent transmission and method as the same |
-
1992
- 1992-12-22 KR KR1019920025027A patent/KR940017374A/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100848738B1 (en) * | 2007-03-26 | 2008-07-25 | 부산대학교 산학협력단 | Compensator for polarization dependent transmission and method as the same |
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