Efficient self-frequency doubling of Nd:GdCOB crystal by type-I phase matching out of its principal planes
作者： C.Q Wang , Y.T Chow , W.A Gambling , S.J Zhang , Z.X Cheng
DOI: 10.1016/S0030-4018(99)00713-0
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摘要: Abstract We report on the efficient self-frequency doubling of Nd:GdCOB crystal by type-I phase-matching at θ=66.3° and ϕ=134.4°, which is out its principal planes. A CW output power 225 mW 530.5 nm obtained an absorbed pump 1.56 W with optical conversion efficiency 14.4% threshold 1.8 mW. To our knowledge, this highest power, lowest from a self-frequency-doubled laser to date.
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