L-band wavelength-tunable fiber laser mode-locked by all polarization-maintaining nonlinear polarization rotation

Ye, Guanyu, Chow, Kin Kee ORCID: https://orcid.org/0000-0003-0589-6208, Shirahata, Takuma, Liu, Bowen, Yamaguchi, Naoki, Dai, Maolin, Ma, Yifan, Yamashita, Shinji and Set, Sze Yun (2024) L-band wavelength-tunable fiber laser mode-locked by all polarization-maintaining nonlinear polarization rotation. In: SPIE LASE, 27 January 2024 - 01 February 2024, San Francisco, California, United States.

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Abstract

We achieved the first demonstration of a wavelength-tunable mode-locked fiber laser in the L-band using allpolarization maintaining (all-PM) nonlinear polarization rotation (NPR). The all-PM configured laser features excellent repeatability and reliability. By increasing the pump power from 82.5 mW to 135 mW, a center wavelength-tunning from 1576.2 nm to 1592.2 nm is obtained. This non-mechanical tunning mechanism opens new possibilities for L-band wavelength-tunable lasers and their applications.