15 W high OSNR kHz-linewidth linearly-polarized all-fiber single-frequency MOPA at 16 μm | Zendy

Changsheng Yang | Zendy; Xianchao Guan | Zendy; Qilai Zhao | Zendy; Wei Lin | Zendy; Can Li | Zendy; Jiulin Gan | Zendy; Qi Qian | Zendy; Zhouming Feng | Zendy; Zhongmin Yang | Zendy; Shanhui Xu | Zendy

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15 W high OSNR kHz-linewidth linearly-polarized all-fiber single-frequency MOPA at 16 μm

Author(s) -

Changsheng Yang,

Xianchao Guan,

Qilai Zhao,

Wei Lin,

Can Li,

Jiulin Gan,

Qi Qian,

Zhouming Feng,

Zhongmin Yang,

Shanhui Xu

Publication year - 2018

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.26.012863

Subject(s) - laser linewidth , optics , materials science , extinction ratio , fiber laser , laser , amplified spontaneous emission , optical amplifier , amplifier , optoelectronics , physics , wavelength , cmos

A 1603 nm high optical signal-to-noise ratio (OSNR) kHz-linewidth linearly-polarized all-fiber single-frequency master-oscillator power amplifier (MOPA) is demonstrated. To suppress the amplified spontaneous emission from Yb 3+ /Er 3+ ions with the customized filters and optimize the length of the double cladding active fiber, an over 15 W stable single-longitudinal-mode laser is achieved with an OSNR of >70 dB. A measured laser linewidth of 4.5 kHz and a polarization-extinction ratio of >23 dB are obtained at the full output power. This L-band high-power single-frequency MOPA is promising for high-resolution molecular spectroscopy and pumping of Tm 3+ -doped or Tm 3+ /Ho 3+ co-doped laser.

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