All-fiber passively mode-locked laser based on a chiral fiber grating

A novel passively mode-locked all-fiber laser using a chiral fiber grating as a polarization-selective element is demonstrated for the first time, to the best of our knowledge. The chiral fiber grating serves as a key component to form an artificial saturable absorber to realize mode locking through...

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Bibliographic Details
Published inOptics letters Vol. 41; no. 2; p. 360
Main Authors Du, Yueqing, Shu, Xuewen, Xu, Zuowei
Format Journal Article
LanguageEnglish
Published United States 15.01.2016
Subjects
Lasers
Optical Fibers
Optical Phenomena
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Summary:A novel passively mode-locked all-fiber laser using a chiral fiber grating as a polarization-selective element is demonstrated for the first time, to the best of our knowledge. The chiral fiber grating serves as a key component to form an artificial saturable absorber to realize mode locking through nonlinear polarization rotation in the cavity. The laser generates stable short pulses with energy of 0.34 nJ, a fundamental repetition rate of 3.27 MHz, and an FWHM bandwidth of 28 nm. We also show that harmonic mode-locked pulse trains of different orders can be obtained by increasing the pump power.
ISSN:1539-4794
DOI:10.1364/OL.41.000360