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

Zinan Huang, Sonia Boscolo, Qianqian Huang, Zhikun Xing, Zhijun Yan, Tao Chen, Yunqi Liu, Chengbo Mou

Research output: Contribution to journalArticlepeer-review


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.
Original languageEnglish
Pages (from-to)34892-34899
Number of pages8
JournalOptics Express
Issue number22
Early online date11 Oct 2021
Publication statusPublished - 25 Oct 2021

Bibliographical note

Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

Funding: National Key Research and Development Program of China (2020YFB1805800); National Natural Science Foundation of China (61575120, 61975107); Natural Science Foundation of Shanghai (20ZR1471500); Overseas Expertise Introduction Project for Discipline Innovation (D20031); Key Laboratory of Space Active Opto-electronics Technology (2021-ZDKF-1); Engineering and Physical Sciences Research Council (EP/S003436/1 – PHOS).


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