Intracavity phase locking and extracavity combination of the two emitted beams generated by a Nd:YAG laser longitudinally pumped by two fiber-coupled diode lasers are investigated. Phase locking is performed by a diffractive component located inside a confocal Fabry-Perot resonator. The coherent addition of the two synchronized beams in a single TER loo wave is made by a birefringent interferometer, with 96.8% energy yield. 610-mW output power was obtained in a single-lobed beam profile with 30.5% optical-to-optical conversion efficiency in the continuous-wave regime. (C) 1996 Optical Society of America.
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页码:1996 / 1998
页数:3
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Colombeau B., 1994, Pure and Applied Optics, V3, P757, DOI 10.1088/0963-9659/3/5/008