Research on laser characteristics of low-threshold high-efficiency Nd:Sr5(PO4)3F crystal

Qingpu Wang; Shengzhi Zhao; Xingyu Zhang; Lianke Sun; Shaojun Zhang

doi:10.1117/12.236158

25 March 1996 Research on laser characteristics of low-threshold high-efficiency Nd:Sr₅(PO₄)₃F crystal

Qingpu Wang, Shengzhi Zhao, Xingyu Zhang, Lianke Sun, Shaojun Zhang

Proceedings Volume 2698, Solid State Lasers V; (1996) https://doi.org/10.1117/12.236158
Event: Photonics West '96, 1996, San Jose, CA, United States

Abstract

The absorption spectrum of a new crystal Nd:S-FAP is measured, and its broad absorption band and two strong absorption peaks show that it can be suitably pumped with a tunable dye- laser and a Xenon flash lamp. Using both a tunable dye-laser (570 - 600 nm) and a Xenon flash lamp as pump source, respectively, we have realized the free-running and Q-switched output with BDN dye film at 1.059 micrometer. For the tunable dye-laser pump source, a slope efficiency of 49% and a laser threshold energy of only 2.5 mJ have been measured, while for a Xenon flash lamp pump source, the lowest threshold energy is 150 mJ and the highest slope efficiency is 1.25%. Meanwhile, the emission spectrum, the polarization, the output energy and the pulse width are presented.

Citation Download Citation

Qingpu Wang, Shengzhi Zhao, Xingyu Zhang, Lianke Sun, and Shaojun Zhang "Research on laser characteristics of low-threshold high-efficiency Nd:Sr₅(PO₄)₃F crystal", Proc. SPIE 2698, Solid State Lasers V, (25 March 1996); https://doi.org/10.1117/12.236158

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