A Single-Frequency Linearly Polarized Fiber Laser Using a Newly Developed Heavily Tm3＋-Doped Germanate Glass Fiber at 1.95 μm

A compact linearly polarized, low-noise, narrow-linewidth, single-frequency fiber laser at 1950nm is demonstrated. This compact fiber laser is based on a 21-mm-long homemade Tm3＋-doped germanate glass fiber. Over 100-mW stable continuous-wave single transverse and longitudinal mode lasing at 195Ohm...

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Published in中国物理快报：英文版 no. 9; pp. 62 - 65
Main Author 杨麒 徐善辉 李灿 杨昌盛 冯洲明 肖瑜 黄湘 杨中民
Format Journal Article
LanguageEnglish
Published 01.09.2015
Subjects
光纤激光器
单频
开发
掺杂
玻璃纤维
相对强度噪声
线性极化
锗酸盐
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Summary:A compact linearly polarized, low-noise, narrow-linewidth, single-frequency fiber laser at 1950nm is demonstrated. This compact fiber laser is based on a 21-mm-long homemade Tm3＋-doped germanate glass fiber. Over 100-mW stable continuous-wave single transverse and longitudinal mode lasing at 195Ohm are achieved. The measured relative intensity noise is less than -135dB/Hz at frequencies over 5 MHz. The signal-to-noise ratio of the laser is larger than 72dB, and the laser linewidth is less than 6kHz, while the obtained linear polarization extinction ratio is higher than 22 dB.
Bibliography:11-1959/O4
A compact linearly polarized, low-noise, narrow-linewidth, single-frequency fiber laser at 1950nm is demonstrated. This compact fiber laser is based on a 21-mm-long homemade Tm3＋-doped germanate glass fiber. Over 100-mW stable continuous-wave single transverse and longitudinal mode lasing at 195Ohm are achieved. The measured relative intensity noise is less than -135dB/Hz at frequencies over 5 MHz. The signal-to-noise ratio of the laser is larger than 72dB, and the laser linewidth is less than 6kHz, while the obtained linear polarization extinction ratio is higher than 22 dB.
YANG Qi, XU Shan-Hui, LI Can, YANG Chang-Sheng, FENG Zhou-Ming, XIAO Yu, HUANG Xiang, YANG Zhong-Min（ 1State Key Laboratory of Luminescent Materials and Devices and Institute of Optical Communication Materials South China University of Technology, Guangzhou 510640 2 Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices, Guangzhou 510640 3 Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, South China University of Technology, Guangzhou 510640）
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/32/9/094206