Generation of 64-fs L-band stretched pulses from an all-fibre Er-doped laser | Zendy

Zinan Huang | Zendy; Sonia Boscolo | Zendy; Qianqian Huang | Zendy; Zhikun Xing | Zendy; Zhijun Yan | Zendy; Tao Chen | Zendy; Yunqi Liu | Zendy; Chengbo Mou | Zendy

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Generation of 64-fs L-band stretched pulses from an all-fibre Er-doped laser

Author(s) -

Zinan Huang,

Sonia Boscolo,

Qianqian Huang,

Zhikun Xing,

Zhijun Yan,

Tao Chen,

Yunqi Liu,

Chengbo Mou

Publication year - 2021

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.434546

Subject(s) - optics , materials science , laser , fiber laser , polarizer , erbium , ultrashort pulse , pulse duration , dispersion (optics) , subwavelength diameter optical fibre , wavelength , optoelectronics , physics , birefringence

We demonstrate an L-band all-fibre erbium-doped laser mode locked by nonlinear polarisation rotation and working in the stretched-pulse regime. The use of a single segment of gain fibre with appropriate length and dispersion and a Brewster fibre grating optimised for the L band as an in-fibre polariser enables the generation of pulses at 1.59-μm central wavelength, which can be linearly compressed to 64-fs duration. Numerical simulations of the laser model support our experimental findings. Our laser design gives a route towards low-cost and low-complexity fibre-integrated laser sources for applications requiring L-band ultrashort pulses.

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