Efficient self-frequency-doubling Nd:YCOB laser

Junhua Lu; Guangming Li; Junhai Liu; Bo Gong; Jiyang Wang; Zongshu Shao; Minhua Jiang

doi:10.1117/12.361178

8 September 1999 Efficient self-frequency-doubling Nd:YCOB laser

Junhua Lu, Guangming Li, Junhai Liu, Bo Gong, Jiyang Wang, Zongshu Shao, Minhua Jiang

Proceedings Volume 3862, 1999 International Conference on Industrial Lasers; (1999) https://doi.org/10.1117/12.361178
Event: International Symposium on Industrial Lasers, 1999, Wuhan, China

Abstract

The polarized absorption spectra of Nd:YCOB crystal was measured. Optical properties were studied via Judd-Ofelt analysis. The line strength, intensity parameters, radiative transition rates, life time and branching ratios were calculated. The results were discussed. Using an Ar⁺ laser pumped CW tunable Ti:sapphire as a pumping source, the self-frequency doubling laser operation was successfully investigated. The lasing threshold is measured to be 2 mW, the optical-optical conversion efficiency is about 3.7%. To our knowledge, this is the lowest threshold and highest conversion efficiency reported so far.

Citation Download Citation

Junhua Lu, Guangming Li, Junhai Liu, Bo Gong, Jiyang Wang, Zongshu Shao, and Minhua Jiang "Efficient self-frequency-doubling Nd:YCOB laser", Proc. SPIE 3862, 1999 International Conference on Industrial Lasers, (8 September 1999); https://doi.org/10.1117/12.361178

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