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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 10 — May. 19, 2014
  • pp: 11508–11515

High-repetition-rate Q-switched fiber laser with high quality topological insulator Bi2Se3 film

Zhenhua Yu, Yanrong Song, Jinrong Tian, Zhiyuan Dou, Heyang Guoyu, Kexuan Li, Hongwei Li, and Xinping Zhang  »View Author Affiliations

Optics Express, Vol. 22, Issue 10, pp. 11508-11515 (2014)

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We demonstrated a high-repetition-rate Q-switched fiber laser with topological insulator Bi2Se3 absorber. The absorber was made into a film structure by spin-coating method using few-layer Bi2Se3 nano-platelets which had regular shape. The uniform film had a low saturable optical intensity of 11 MW/cm2, which is the lowest saturable optical intensity in the saturable absorbers made by topological insulator till now. By inserting the absorber film into an Erbium-doped fiber laser, a high-repetition Q-switched laser with the repetition rates from 459 kHz to 940 kHz was achieved. The maximum output power was 22.35 mW with the shortest pulse duration of 1.9 μs. To the best of our knowledge, both of the repetition rate and the output power were the highest values among the Q-switched fiber lasers with topological insulator absorber.

© 2014 Optical Society of America

OCIS Codes
(140.3540) Lasers and laser optics : Lasers, Q-switched
(160.4236) Materials : Nanomaterials
(060.3510) Fiber optics and optical communications : Lasers, fiber

ToC Category:
Lasers and Laser Optics

Original Manuscript: March 14, 2014
Revised Manuscript: April 25, 2014
Manuscript Accepted: April 26, 2014
Published: May 5, 2014

Zhenhua Yu, Yanrong Song, Jinrong Tian, Zhiyuan Dou, Heyang Guoyu, Kexuan Li, Hongwei Li, and Xinping Zhang, "High-repetition-rate Q-switched fiber laser with high quality topological insulator Bi2Se3 film," Opt. Express 22, 11508-11515 (2014)

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