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
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.
2012, Vol. 29 
