783 MHz fundamental repetition rate all-fiber ring laser mode-locked by carbon nanotubes

Abstract We demonstrate a 783 MHz fundamental repetition rate mode-locked Er-doped all-fiber ring laser with a pulse width of 623 fs. By using carbon nanotubes saturable absorber, a relatively low self-starting pump threshold of 108 mW is achieved. The laser has a very compact footprint less than 10...

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Bibliographic Details
Published inApplied physics express Vol. 17; no. 6; pp. 62001 - 62004
Main Authors Dai, Maolin, Liu, Bowen, Ma, Yifan, Shirahata, Takuma, Yang, Ruoao, Zhang, Zhigang, Set, Sze Yun, Yamashita, Shinji
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.06.2024
Subjects
fiber lasers
high repetition rate
mode-locking
saturable absorbers
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Summary:Abstract We demonstrate a 783 MHz fundamental repetition rate mode-locked Er-doped all-fiber ring laser with a pulse width of 623 fs. By using carbon nanotubes saturable absorber, a relatively low self-starting pump threshold of 108 mW is achieved. The laser has a very compact footprint less than 10 cm × 10 cm, benefiting from the all-active-fiber cavity design. The robust mode-locking is confirmed by the low relative intensity noise and a long-term stability test. We propose a new scheme for generating high repetition rate femtosecond optical pulses from a compact and stable all-active-fiber ring oscillator.
Bibliography:APEX-108018
ISSN:1882-0778
1882-0786
DOI:10.35848/1882-0786/ad548f