| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Adaptive Polarization Control of Fiber Amplifier Based on SPGD Algorithm |
| XIONG Yu-Peng, SU Rong-Tao, LI Xiao**, HOU Pu, WANG Xiao-Lin, XU Xiao-Jun** |
College of Optoelectric Science and Engineering, National University of Defense Technology, Changsha 410073
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| Cite this article: |
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XIONG Yu-Peng, SU Rong-Tao, LI Xiao et al 2012 Chin. Phys. Lett. 29 124212 |
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Abstract We demonstrate an adaptive polarization control system of a 10.2 W non-polarization-maintaining fiber amplifier based on stochastic parallel gradient decent (SPGD) algorithm. The experimental investigation shows that the system can used to compensate for the polarization fluctuation of the fiber amplifier effectively and perform well over a long-time observation. When the adaptive polarization control system is in closed loop, the extinction ratio increases from 2.28 dB to 11.54 dB, and more than 93.4% of the total power in desired polarization direction is achieved.
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Received: 12 July 2012
Published: 04 March 2013
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| PACS: |
42.60.Da
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(Resonators, cavities, amplifiers, arrays, and rings)
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42.81.Gs
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(Birefringence, polarization)
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