文章基本信息

标题：Development of Optical Parametric Oscillator Tunable in the Range 970-1460 nm
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作者：S. P. Singh ; Shyamal Mondal ; Kamal Hussain 等
期刊名称：Defence Science Journal
印刷版ISSN：0976-464X
出版年度：2011
卷号：61
期号：4
页码：377-382
DOI：10.14429/dsj.61.562
语种：English
出版社：Defence Scientific Information & Documentation Centre
摘要：Optical parametric oscillator (OPO) tunable in the range 970-1460 nm has been developed using bet barium borate (BBO) crystal as the gain medium and second harmonic of Nd:YAG laser as pump source. Two sets of resonators were used to cover the range; first was nearly degenerate (970-1180 nm) and the second was nondegenerate (1240-1460 nm). The measured threshold pump pulse energy was nearly 8 mJ. Maximum signal pulse energy of about 14 mJ was obtained for pump pulse energy of nearly 31 mJ. Power scaling efficiency was about 70 per cent. The signal pulse width was ~5 ns corresponding to the pump pulse width of ~ 9 ns. OPO signal beam quality was Gaussian although the pump beam was top-hat multimode. Defence Science Journal, 2011, 61(4), pp.377-382 , DOI:http://dx.doi.org/10.14429/dsj.61.562
关键词：Nonlinear optics;second harmonic generation;optical parametric oscillator;nanosecond OPO;synchronised OPO