All-Fiber Dual-Wavelength Mode-Locked Laser Using a Bend-Induced-Birefringence Lyot-Filter as Gain-Tilt Equalizer

IEEE Photonics Journal

Lei Jin¹  Shinji Yamashita¹  Yuanjun Zhu¹  Sze Yun Set¹  Fulin Xiang¹ 

[1]Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan

关键词: Mode-locked laser;    fiber lasers;   

DOI  :  10.1109/JPHOT.2019.2946380

来源: DOAJ

【 摘 要 】

Multi-wavelength fiber lasers have emerged as a promising light source for the application in wavelength division multiplexing communication, terahertz wave generation and optical sensing due to high efficiency and robustness. Lyot-filter emerges as a potential device for multi-wavelength generation application. However, because of the high birefringence of polarization maintaining fiber in Lyot-filter, it is difficult to generate broadband dual-wavelength or multi-wavelength mode-locked fiber laser by using common Lyot-filter. In this paper, for the first time, we propose an idea of using the low birefringence induced by bending the single-mode fiber to form a Lyot-filter for dual-wavelength mode-locked fiber laser generation. The dual-wavelength output centers at 1532 and 1556 nm and it may simplify the set-up for dual-wavelength mode-locked laser.

【 授权许可】

Unknown