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Nonresonant recirculating type II second-harmonic generator.

Authors
Type
Published Article
Journal
Applied optics
Publication Date
Volume
43
Issue
11
Pages
2353–2359
Identifiers
PMID: 15098839
Source
Medline
License
Unknown

Abstract

We show an experimental proof of concept for a nonresonant recirculation method to increase the conversion efficiency of second-harmonic generation (SHG) with type II phase matching. As much as a factor-of-4 efficiency increase compared with that of single-pass SHG is possible, provided that the recirculation length is within the coherence length of the pump laser. Nonresonant recirculating SHG may be valuable in systems in which intracavity doubling is not practicable, such as high-power cw bulk solid-state or fiber lasers.

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