Coherent summation of injection-locked, diode-pumped Nd:YAG ring lasers

J. Harrison, J. R. Leger, G. A. Rines, P. F. Moulton

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


A binary grating has been used to achieve coherent summation of diode-laser-pumped Nd:YAG ring lasers operating at 1.06 μm. Mutual coherence of two such devices was achieved by optical injection locking. This is believed to be the first demonstration of cw injection locking of solid-state lasers other than semiconductor diode lasers. By combining two beams, an efficiency of 75% (92% of the theoretical limit) has been demonstrated in a configuration that could be used to combine a large number of individual lasers.

Original languageEnglish (US)
Pages (from-to)111-113
Number of pages3
JournalOptics Letters
Issue number2
StatePublished - Feb 1988


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