2 GHz passively harmonic mode-locked fiber laser by a microfiber-based topological insulator saturable absorber

We report on the generation of passive harmonic mode locking of a fiber laser using a microfiber-based topological insulator (TI) Bi(2)Te(3) saturable absorber (SA). The optical deposition method was employed to fabricate the microfiber-based TISA. By virtue of the excellent nonlinear optical proper...

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Bibliographic Details
Published in:Optics letters 2013-12, Vol.38 (24), p.5212-5215
Main Authors: Luo, Zhi-Chao, Liu, Meng, Liu, Hao, Zheng, Xu-Wu, Luo, Ai-Ping, Zhao, Chu-Jun, Zhang, Han, Wen, Shuang-Chun, Xu, Wen-Cheng
Format: Article
Language:English
Subjects:
Deposition
Fiber lasers
Harmonics
Insulators
Nonlinearity
Optical components
Photonics
Topology
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Summary:We report on the generation of passive harmonic mode locking of a fiber laser using a microfiber-based topological insulator (TI) Bi(2)Te(3) saturable absorber (SA). The optical deposition method was employed to fabricate the microfiber-based TISA. By virtue of the excellent nonlinear optical property of the proposed TISA, the fiber laser could operate at the pulse repetition rate of 2.04 GHz under a pump power of 126 mW, corresponding to the 418th harmonic of fundamental repetition frequency. The results demonstrate that the microfiber-based TI photonic device can operate as both the high nonlinear optical component and the SA in fiber lasers, and could also find other applications in the related fields of photonics.
ISSN:0146-9592
1539-4794
DOI:10.1364/ol.38.005212