2ND-HARMONIC GENERATION IN BRAGG-RESONANT QUASI-PHASE-MATCHED PERIODICALLY SEGMENTED WAVE-GUIDES

Authors
WEISSMAN Z HARDY A KATZ M ORON M EGER D
Citation
Z. Weissman et al., 2ND-HARMONIC GENERATION IN BRAGG-RESONANT QUASI-PHASE-MATCHED PERIODICALLY SEGMENTED WAVE-GUIDES, Optics letters, 20(7), 1995, pp. 674-676
Citations number
13
Categorie Soggetti
Optics
Journal title
Optics letters → ACNP
ISSN journal
01469592
Volume
20
Issue
7
Year of publication
1995
Pages
674 - 676
Database
ISI
SICI code
0146-9592(1995)20:7<674:2GIBQP>2.0.ZU;2-E
Abstract
Second-harmonic generation in Bragg-resonant quasi-phase-matched perio dically segmented waveguides is studied experimentally and theoretical ly. At resonance, a deep spectral valley appears in the quasi-phase-ma tching curve. Nevertheless, in practice, the conversion efficiency is significant, in spite of this effect, because of reduced reflections, especially at 2 omega. The mechanism behind this reduction seems to be small random variation in the location and shape of the domain bounda ries.