Title :
Topological Insulator:
Saturable Absorber for the Passive Q-Switching Operation of an in-Band Pumped 1645-nm Er:YAG Ceramic Laser
Author :
Pinghua Tang ; Xiaoqi Zhang ; Chujun Zhao ; Yong Wang ; Han Zhang ; Deyuan Shen ; Shuangchun Wen ; Dingyuan Tang ; Dianyuan Fan
Author_Institution :
Key Lab. for Micro-/Nano-Optoelectron. Devices of Minist. of Educ., Hunan Univ., Changsha, China
Abstract :
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.
Keywords :
Q-switching; bismuth compounds; ceramics; erbium; optical pumping; optical saturable absorption; solid lasers; topological insulators; Bi2Te3; Er:YAG ceramic laser; YAG:Er; energy 5.3 muJ; in-band pumped ceramic laser; passive Q-switching operation; saturable absorber; time 6.3 mus; topological insulator; wavelength 1645 nm; Ceramics; Laser excitation; Measurement by laser beam; Power generation; Power lasers; Pump lasers; Semiconductor lasers; Er:YAG; Q-switching (Q-S); Topological insulator; ceramic laser;
Journal_Title :
Photonics Journal, IEEE
DOI :
10.1109/JPHOT.2013.2250494