| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Polarization Stability of a Double-Loop Interferometer Based on a Planar 3×3 Coupler |
| WANG Ya-Ping1,2**,WU Chong-Qing1,YAN Ping2 |
1Institute of Optical Information, Key Laboratory of Education Ministry on Luminescence and Optical Information Technology, Beijing Jiaotong University, Beijing 100044
2Center for Photonics and Electronics, State Key Laboratory of Tribology, Department of Precision Instruments, Tsinghua University, Beijing 100084 |
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| Cite this article: |
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WANG Ya-Ping, WU Chong-Qing, YAN Ping 2012 Chin. Phys. Lett. 29 044212 |
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Abstract An interferometer with double loops based on a planar 3×3 coupler is proposed. The main factors that cause the instability of the polarization state are obtained by theoretical analysis and experiment. Furthermore, the stability of the polarization state is described quantitatively by the time-varying vector of polarization. Using these effective measures, interference with a stable polarization state at all times is achieved.
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Received: 20 September 2011
Published: 04 April 2012
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