Tunable and switchable dual-wavelength Tm-doped mode-locked fiber laser by nonlinear polarization evolution | Zendy

Zhiyu Yan | Zendy; Xiaohui Li | Zendy; Yulong Tang | Zendy; Perry Ping Shum | Zendy; Xia Yu | Zendy; Ying Zhang | Zendy; Qi Jie Wang | Zendy

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Tunable and switchable dual-wavelength Tm-doped mode-locked fiber laser by nonlinear polarization evolution

Author(s) -

Zhiyu Yan,

Xiaohui Li,

Yulong Tang,

Perry Ping Shum,

Xia Yu,

Ying Zhang,

Qi Jie Wang

Publication year - 2015

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.23.004369

Subject(s) - materials science , fiber laser , optics , optoelectronics , mode locking , laser , wavelength , polarization (electrochemistry) , polarization maintaining optical fiber , tunable laser , optical fiber , fiber optic sensor , physics , chemistry

We propose and demonstrate a tunable and switchable dual-wavelength ultra-fast Tm-doped fiber laser. The tunability is based on nonlinear polarization evolution (NPE) technique in a passively mode-locked laser cavity. The NPE effect induces wavelength-dependent loss in the cavity to effectively alleviate mode competition and enables the multiwavelength mode locking. The laser exhibits tunable dual-wavelength mode locking over a wide range from 1852 to 1886 nm. The system has compact structure and both the wavelength tuning and switching capabilities can be realized by controlling the polarization in the fiber ring cavity.

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