Passive Q-Switching of an All-Fiber Laser Using WS2-Deposited Optical Fiber Taper

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We demonstrate the passive Q-switching operation of an erbium-doped fiber laser using a few-layer WS2-based saturable absorber with evanescent field interaction. WS2 flakes have been synthesized via a liquid-phase exfoliation method, and an optical fiber taper was selected as a light-material template that causes to achieve a long interaction length of the evanescent wave. Subsequently, the prepared solution was optically deposited around the 3-mm interaction length of the fabricated optical fiber taper with a 5-mu m waist diameter. The proposed Q-switched fiber laser based on the WS2-deposited fiber taper saturable absorber could generate stable output pulses at 1565 nm, with a pulsewidth ranging from 1.3 to 3 mu s and a repetition rate of 33-108 kHz.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2015-10
Language
English
Article Type
Article
Citation

IEEE PHOTONICS JOURNAL, v.7, no.5, pp.1503507

ISSN
1943-0655
URI
http://hdl.handle.net/10203/205223
Appears in Collection
PH-Journal Papers(저널논문)
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