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  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 1988),
  • paper TUM45

Injection locking and coherent summation of diode-laser-pumped Nd:YAG ring lasers

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Abstract

Coherent summation of laser beams with phase-only transmission gratings has been demonstrated to be an effective way to increase the brightness of a number of individual lasers.1,2 In previous experiments with He–Ne1 and GaAIAs2 lasers, the source lasers were operated in an external cavity with a common output coupling mirror to achieve the required mutual coherence. The summation technique has been extended to Nd:YAG lasers operating at 1.06 μm. Mutual coherence of two diode-laser-pumped ring lasers was achieved by cw optical injection locking. This is believed to be the first demonstration of cw injection locking of solid-state lasers other than diode lasers.

© 1988 Optical Society of America

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