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Topological Insulator: \hbox {Bi}_{2}\hbox {Te}_{3} Saturable Absorber for the Passive Q-Switching Operation of an in-Band Pumped 1645-nm Er:YAG Ceramic Laser

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9 Author(s)
Pinghua Tang ; Key Lab. for Micro-/Nano-Optoelectron. Devices of Minist. of Educ., Hunan Univ., Changsha, China ; Xiaoqi Zhang ; Chujun Zhao ; Yong Wang
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An in-band pumped 1.645-μm Er:YAG ceramic laser passively Q-switched by a topological insulator: Bi2Te3 saturable absorber is reported. The average output power could reach up to 210 mW, corresponding to a pulsewidth, a pulse repetition rate, and a per-pulse energy of 6.3 μs, 40.7 kHz, and 5.3 μJ, respectively. This result indicates that the topological insulator: Bi2Te3 could be a promising saturable absorber such as graphene, with potential applications for solid-state lasers.

Published in:

Photonics Journal, IEEE  (Volume:5 ,  Issue: 2 )