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作者:

Dong, Zikai (Dong, Zikai.) | Cui, Youshuo (Cui, Youshuo.) | Li, Kexuan (Li, Kexuan.) | Hua, Lingling (Hua, Lingling.) | Zhang, Wenhai (Zhang, Wenhai.) | Tian, Jinrong (Tian, Jinrong.) | Song, Yanrong (Song, Yanrong.) (学者:宋晏蓉)

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摘要:

A passively fast polarization switching erbium-doped fibre laser using quantum dot tungsten disulfide (QDWS(2)) as a saturable absorber (SA) has been proposed. It could generate polarization domain walls (PDWs). The PDWs' spectrum can be divided into two separated spectra, which are orthogonally polarized. In detail, the horizontal polarization component wavelength is centred at 1561.1 nm with a repetition rate of 19.347 MHz, a pulse duration of 30 ns, and a signal-to-noise ratio of 73.2 dB at the maximum pump power. The vertical polarization component wavelength is centred at 1561.5 nm, with a pulse duration of 20.4 ns. To the best of our knowledge, this is the first report of a polarization domain wall generated by a QDWS(2)-SA. These results provide a platform to investigate anticorrelated polarization dynamics in quasi-isotropic fibre lasers. Moreover, their robustness and attractive properties could find potential applications in optical communications, data storage, and fibre laser devices.

关键词:

fibre laser polarization domain wall soliton saturable absorber

作者机构:

  • [ 1 ] [Dong, Zikai]Beijing Univ Technol, Coll Appl Sci, Beijing 100124, Peoples R China
  • [ 2 ] [Cui, Youshuo]Beijing Univ Technol, Coll Appl Sci, Beijing 100124, Peoples R China
  • [ 3 ] [Hua, Lingling]Beijing Univ Technol, Coll Appl Sci, Beijing 100124, Peoples R China
  • [ 4 ] [Tian, Jinrong]Beijing Univ Technol, Coll Appl Sci, Beijing 100124, Peoples R China
  • [ 5 ] [Song, Yanrong]Beijing Univ Technol, Coll Appl Sci, Beijing 100124, Peoples R China
  • [ 6 ] [Li, Kexuan]Chinese Peoples Armed Police Force Acad, Langfang 065000, Peoples R China
  • [ 7 ] [Zhang, Wenhai]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing Key Lab Green Catalysis & Separat, Beijing 100124, Peoples R China

通讯作者信息:

  • [Dong, Zikai]Beijing Univ Technol, Coll Appl Sci, Beijing 100124, Peoples R China

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来源 :

LASER PHYSICS

ISSN: 1054-660X

年份: 2020

期: 5

卷: 30

1 . 2 0 0

JCR@2022

ESI学科: PHYSICS;

ESI高被引阀值:100

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WoS核心集被引频次: 1

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