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Excessively tilted fiber grating based Fe3O4 saturable absorber for passively mode-locked fiber laser

  • Hushan Wang
  • , Fengyan Zhao
  • , Zhijun Yan
  • , Xiaohong Hu
  • , Kaiming Zhou
  • , Ting Zhang
  • , Wei Zhang
  • , Yishan Wang
  • , Wei Zhao*
  • , Lin Zhang
  • , Chuandong Sun
  • *Corresponding author for this work
  • Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences
  • Chinese Academy of Sciences, Beijing
  • Shanxi University

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Abstract

A novel approach to saturable absorber (SA) formation is presented by taking advantage of the mode coupling property of excessively tilted fiber grating (Ex-TFG). Stable mode-locked operation can be conveniently achieved based on the interaction between Ex- TFG coupled light and deposited ferroferric-oxide (Fe3O4) nanoparticles. The central wavelength, bandwidth and single pulse duration of the output are 1595 nm, 4.05 nm, and 912 fs, respectively. The fiber laser exhibits good long-term stability with signal-to-noise ratio (SNR) of 67 dB. For the first time, to the best of our knowledge, Ex-TFG based Fe3O4 SA for mode-locked fiber laser is demonstrated.

Original languageEnglish
Pages (from-to)15693-15700
Number of pages8
JournalOptics Express
Volume27
Issue number11
DOIs
Publication statusPublished - 17 May 2019

Bibliographical note

© 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

Funding

National Natural Science Foundation of China (61605239, 61690222); National Key R & D Program of China (2016YFF0200700, 2017YFB1104400); CAS-SAFEA International Partnership Program for Creative Research Teams.

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