Stable dual-wavelength laser incorporating polarization-maintaining erbium-doped fiber

•High stability of dual-wavelength erbium doped fiber laser using PM-EDF as filter.•Constant peak wavelength with high SMSR of 55.81 and 58.29 dB over 60 min.•Peak power fluctuation of 0.005 dB only with compact ring cavity structure. A stable dual-wavelength erbium-doped fiber laser is proposed and...

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Bibliographic Details
Published in:Optics and laser technology 2021-03, Vol.135, p.106707, Article 106707
Main Authors: Md Yusoff, Nelidya, Yao, Lau Kuen, Sulaiman, Abdul Hadi, Mohd Yusoff, Norita, Mahdi, Mohd Adzir
Format: Article
Language:English
Subjects:
Doped fibers
Dual-wavelength
Erbium
Fiber Lasers
Hole burning
Laser applications
Lasers
Nonlinear optics
Polarization
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Summary:•High stability of dual-wavelength erbium doped fiber laser using PM-EDF as filter.•Constant peak wavelength with high SMSR of 55.81 and 58.29 dB over 60 min.•Peak power fluctuation of 0.005 dB only with compact ring cavity structure. A stable dual-wavelength erbium-doped fiber laser is proposed and experimentally demonstrated. The mode competition in the gain medium was suppressed by enhancing the polarization hole burning mechanism through incorporation of polarization maintaining erbium-doped fiber and nonlinear polarization rotation. The fiber laser displayed high stability with lasing side-mode suppression ratios of 60.69 and 60.57 dB. Additionally, the negligible peak power fluctuation of 0.01 dB was achieved at 1557.17 and 1560.19 nm with both peak powers of 0.23 mW and 3-dB bandwidth of 0.028 and 0.025 nm, respectively. These findings provide insights for an enhanced seed laser source design for remote dual-wavelength fiber laser applications.
ISSN:0030-3992
1879-2545
DOI:10.1016/j.optlastec.2020.106707