| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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A Compact Low Noise Single Frequency Linearly Polarized DBR Fiber Laser at 1550 nm |
| ZHANG Wei-Nan, LI Can, MO Shu-Pei, YANG Chang-Sheng, FENG Zhou-Ming, XU Shan-Hui**, SHEN Shao-Xiong, PENG Ming-Ying, ZHANG Qin-Yuan, YANG Zhong-Min** |
| State Key Laboratory Luminescent Materials and Devices and Institute of Optical Communication Materials, South China University of Technology, Guangzhou 510640 |
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Abstract A compact low noise single frequency linearly polarized distributed Bragg reflector (DBR) fiber laser based on a 1.4-cm-long homemade Er3+/Yb3+-codoped phosphate single mode glass fiber has been demonstrated. An over 50 mW stable single frequency linearly polarized fiber laser was achieved. The measured slope efficiency is more than 21.6%, and the signal-to-noise ratio (SNR) is higher than 65 dB and the laser linewidth is less than 2.0 kHz. The laser RIN is measured to be less than ?150 dB/Hz at the frequencies over 2.0 MHz, and the obtained linear polarization extinction ratio (LPER) is more than 30 dB.
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Received: 22 May 2012
Published: 31 July 2012
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