Widely-pulsewidth-tunable ultrashort pulse generation from a birefringent carbon nanotube mode-locked fiber laser | Zendy

Ya Liu | Zendy; Xin Zhao | Zendy; Jiansheng Liu | Zendy; Guoqing Hu | Zendy; Zheng Gong | Zendy; Zheng Zheng | Zendy

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Widely-pulsewidth-tunable ultrashort pulse generation from a birefringent carbon nanotube mode-locked fiber laser

Author(s) -

Ya Liu,

Xin Zhao,

Jiansheng Liu,

Guoqing Hu,

Zheng Gong,

Zheng Zheng

Publication year - 2014

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.22.021012

Subject(s) - optics , birefringence , materials science , fiber laser , mode locking , ultrashort pulse , polarization (electrochemistry) , pulse shaping , laser , polarization maintaining optical fiber , optoelectronics , optical fiber , physics , fiber optic sensor , chemistry

We demonstrate the generation of soliton pulses covering a nearly one order-of-magnitude pulsewidth range from a simple carbon nanotube (CNT) mode-locked fiber laser with birefringence. A polarization-maintaining-fiber-pigtailed, inline polarization beam splitter and its associated birefringence is leveraged to either enable additional nonlinear polarization evolution (NPE) mode-locking effect or result in a bandwidth-tunable Lyot filter, through adjusting the intracavity polarization settings. The large pulsewidth tuning range is achieved by exploiting both the nonlinear CNT-NPE hybrid mode-locking mechanism that narrows the pulses and the linear filtering effect that broadens them. Induced vector soliton pulses with pulsewidth from 360 fs to 3 ps can be generated, and their time-bandwidth products indicate they are close to transform-limited.

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