Abstract

A single-frequency all-fiber thulium doped laser with distributed feedback is presented. The fiber Bragg grating with a phase shift, which is the cavity of the laser, is written in a highly-doped 36-mm segment of the thulium-doped fiber. The highest power of the single-frequency generation on the wavelength of 1919 nm reaches up to 80 mW at the power of the pumping radiation of 1.1 W. The generation linewidth is equal to 70 kHz. Relative intensity noises of the optical radiation do not exceed the level of 70 dB/Hz with the maximum at the frequency of 1.2 MHz.

中文翻译：

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具有分布反馈的单频掺Feedback光纤激光器

摘要

提出了具有分布反馈的单频全光纤掺th激光器。具有相移的光纤布拉格光栅（即激光器的腔）被写入掺-光纤的高掺杂36毫米段中。在1.1 W的泵浦辐射功率下，单频发电的最高功率在1919 nm的波长上达到80 mW。发电线宽等于70 kHz。光辐射的相对强度噪声不超过70 dB / Hz，最大频率为1.2 MHz。