Open AccessFiber-based dynamically tunable Lyot filter for dual-wavelength and tunable single-wavelength mode-locking of fiber lasers
Author(s) -
Yongjian Zhu,
Zekun Cui,
Xiangnan Sun,
Takuma Shirahata,
Jin Liu,
Shinji Yamashita,
Sze Yun Set
Publication year - 2020
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.402173
Subject(s) - optics , materials science , fiber laser , laser , tunable laser , wavelength , optoelectronics , single mode optical fiber , dispersion shifted fiber , zero dispersion wavelength , optical fiber , fiber optic sensor , physics
We propose and demonstrate a novel dynamically tunable fiber-based Lyot filter for the realization of a dual-wavelength mode-locked fiber laser, operating at center wavelengths of 1535 nm and 1564 nm. The same laser cavity can also be operated in a single-wavelength mode-locked regime with a wavelength tuning range of 30 nm, from 1532 nm to 1562 nm. The proposed dynamically tunable Lyot-filter provides a simple setup for laser mode-locking using a single laser cavity design to generate dual-wavelength pulses, with the flexibility to also allow the generation of single-wavelength pulses with a continuously-tunable center wavelength.