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PhotonIcs and Electromagnetics Research Symposium,
also known as Progress In Electromagnetics Research Symposium

PIERS Proceedings

Published by The Electromagnetics Academy

Published: 2015-08-28

Cr2+: ZnSe Crystal Based High Power Passively Q-switched Tm-doped Fiber Laser

By

Lian Han,

Lian Han

University of Electronic Science and Technology of China (UESTC), China

Yulian He,

Yulian He

University of Electronic Science and Technology of China (UESTC), China

Jianfeng Li,

Jianfeng Li

University of Electronic Science and Technology of China (UESTC), China

Zhuo Li,

Zhuo Li

University of Electronic Science and Technology of China (UESTC), China

Hongyu Luo,

Hongyu Luo

University of Electronic Science and Technology of China (UESTC), China

Lele Wang

Lele Wang

University of Electronic Science and Technology of China (UESTC), China

Proceedings of 2015 Photonics & Electromagnetics Research Symposium, Prague, July 6 - 9，Page(s)2492-2495

Abstract

We presented a passively Q-switched Tm3+ -doped fiber laser using Cr2+ : ZnSe crystal as saturable absorber. By employing a crystal with 70% initial transmission, stable Q- switched pulses with a repetition rate of 150.7 kHz and pulse duration of 160 ns were achieved at the maximum pump power of 7.13 W. The obtained maximum output power of 1.32 W was also the reported highest level from the Cr2+ : ZnSe crystal based passively Q-switched Tm3+ -doped fiber lasers. Moreover, an 80% initial transmission Cr2+ : ZnSe crystal was also employed to compare. Stable Q-switched pulses with maximum output power of 0.96 W at a repetition rate of 138.1 kHz and pulse duration of 352 ns were obtained at the launched pump power of 4.19 W. Further increasing of the pump power will lead to the unstable Q-switching regime.

Citation

Lian Han, Yulian He, Jianfeng Li, Zhuo Li, Hongyu Luo, and Lele Wang, "Cr2+: ZnSe Crystal Based High Power Passively Q-switched Tm-doped Fiber Laser," Proceedings of 2015 Photonics & Electromagnetics Research Symposium, Prague, July 6 - 9，Page(s)2492-2495

References

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