Multiwavelength erbium-doped fiber laser based on a nonlinear amplifying loop mirror assisted by un-pumped EDF | Zendy

Xuesong Liu | Zendy; Li Zhan | Zendy; Shouyu Luo | Zendy; Zhaochang Gu | Zendy; Jinmei Liu | Zendy; Yuxing Wang | Zendy; Qishun Shen | Zendy

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Multiwavelength erbium-doped fiber laser based on a nonlinear amplifying loop mirror assisted by un-pumped EDF

Author(s) -

Xuesong Liu,

Li Zhan,

Shouyu Luo,

Zhaochang Gu,

Jinmei Liu,

Yuxing Wang,

Qishun Shen

Publication year - 2012

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.20.007088

Subject(s) - optics , materials science , lasing threshold , fiber laser , erbium , laser , relative intensity noise , wavelength , wavelength division multiplexing , optoelectronics , physics , semiconductor laser theory

A multiwavelength erbium-doped fiber (EDF) laser based on a nonlinear amplifying loop mirror (NALM) is proposed and experimentally demonstrated. The NALM provides intensity-dependent transmissivity to equalize different-wavelength powers and the transmission can be uniquely optimized by controlling the cavity loss associated with a section of un-pumped EDF, which also enhances the output signal-to-noise ratio (SNR). Through adjusting the polarization controllers (PCs), under only 70 mW pump power, up to 62-wavelength output with channel spacing of 0.45 nm has been achieved. Also, the lasing tunability and stability are verified.

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