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3 GHz passively harmonic mode-locked Er-doped fiber laser by evanescent field-based nano-sheets topological insulator

Optics express, 2018-11, Vol.26 (24), p.31244-31252 [Peer Reviewed Journal]

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Title:
3 GHz passively harmonic mode-locked Er-doped fiber laser by evanescent field-based nano-sheets topological insulator
Author: Jin, Liang ; Ma, Xiaohui ; Zhang, He ; Zhang, Hongwei ; Chen, Hualong ; Xu, Yingtian
Is Part Of: Optics express, 2018-11, Vol.26 (24), p.31244-31252
Description: In this paper, we report on the experimental observation of harmonic mode locking (HML) fiber laser based on evanescent field of tapered fiber using topological insulator (TI) Bi Te saturable absorber (SA). The optical deposition method was adopted to fabricate the tapered fiber-based TISA. By significant nonlinear optical property of the tapered fiber TISA and high nonlinear fiber (HNLF), the fiber laser could operate at the pulse repetition of 3.125 GHz under 976 nm pump power of 148 mW, the pulse width of 1.754 ps, and the output power of 6.4 mW. Our results demonstrate that the tapered fiber TI device and HNLF can act as both high nonlinear optical component and SA in fiber lasers, and could also have better performance to achieve ultrashort pulses with ultrahigh repetition.
Publisher: United States
Language: English
Identifier: ISSN: 1094-4087
EISSN: 1094-4087
DOI: 10.1364/OE.26.031244
PMID: 30650713
Source: Geneva Foundation Free Medical Journals at publisher websites
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