980-nm all-fiber mode-locked Yb-doped phosphate fiber oscillator based on semiconductor saturable absorber mirror and its amplifier

A 980-nm semiconductor saturable absorber mirror（SESAM） mode-locked Yb-doped phosphate fiber laser is demonstrated by using an all-fiber linear cavity configuration. Two different kinds of cavity lengths are introduced into the oscillator to obtain a robust and stable mode-locked seed source. When t...

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Published inChinese physics B Vol. 25; no. 8; pp. 185 - 190
Main Author 李平雪 姚毅飞 池俊杰 胡浩伟 张光举 梁博兴 张孟孟 马春媚 苏宁
Format Journal Article
LanguageEnglish
Published 01.08.2016
Subjects
Amplification
Holes
Oscillators
Phosphates
Pulse width
Repetition
Semiconductors
Spectra
光纤激光器
半导体可饱和吸收镜
振荡器
掺镱
最大输出功率
磷酸盐
锁模脉冲
集成放大器
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ISSN1674-1056
2058-3834
1741-4199
DOI10.1088/1674-1056/25/8/084207

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Summary:A 980-nm semiconductor saturable absorber mirror（SESAM） mode-locked Yb-doped phosphate fiber laser is demonstrated by using an all-fiber linear cavity configuration. Two different kinds of cavity lengths are introduced into the oscillator to obtain a robust and stable mode-locked seed source. When the cavity length is chosen to be 6 m, the oscillator generates an average output power of 3.5 m W and a pulse width of 76.27 ps with a repetition rate of 17.08 MHz. As the cavity length is optimized to short, 4.4-m W maximum output power and 61.15-ps pulse width are produced at a repetition rate of 20.96 MHz. The output spectrum is centered at 980 nm with a narrow spectral bandwidth of 0.13 nm. In the experiment, no undesired amplified spontaneous emission（ASE） nor harmful oscillation around 1030 nm is observed. Moreover,through a two-stage all-fiber-integrated amplifier, an output power of 740 m W is generated with a pulse width of 200 ps.
Bibliography:980-nm fiber laser, SESAM mode-locking, Yb-doped phosphate fiber, fiber amplifier
Ping-Xue Li, Yi-Fei Yao, Jun-Jie Chi, Hao-Wei Hu, Guang-Ju Zhang, Bo-Xing Liang, Meng-Meng Zhang, Chun-Mei Ma, and Ning Su（ Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China）
A 980-nm semiconductor saturable absorber mirror（SESAM） mode-locked Yb-doped phosphate fiber laser is demonstrated by using an all-fiber linear cavity configuration. Two different kinds of cavity lengths are introduced into the oscillator to obtain a robust and stable mode-locked seed source. When the cavity length is chosen to be 6 m, the oscillator generates an average output power of 3.5 m W and a pulse width of 76.27 ps with a repetition rate of 17.08 MHz. As the cavity length is optimized to short, 4.4-m W maximum output power and 61.15-ps pulse width are produced at a repetition rate of 20.96 MHz. The output spectrum is centered at 980 nm with a narrow spectral bandwidth of 0.13 nm. In the experiment, no undesired amplified spontaneous emission（ASE） nor harmful oscillation around 1030 nm is observed. Moreover,through a two-stage all-fiber-integrated amplifier, an output power of 740 m W is generated with a pulse width of 200 ps.
11-5639/O4
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/25/8/084207