Leaky-waveguide configuration for quasi-phase-matched second-harmonic generation
JOSA B, Vol. 15, Issue 4, pp. 1322-1328 (1998)
http://dx.doi.org/10.1364/JOSAB.15.001322
Acrobat PDF (272 KB)
Abstract
We consider quasi-phase-matched (QPM) second-harmonic generation in a leaky-waveguide structure in which the fundamental is a guided mode and the second harmonic is radiated into the substrate. Under a no-pump-depletion approximation and using the coupled-mode theory, we show through numerical calculations that by an appropriate choice of the thickness of the index depression region of the leaky waveguide one can achieve conversion efficiencies and tolerance values that are intermediate between QPM and QPM Čerenkov configurations. The proposed configuration thus possesses the advantages of both QPM guided-to-guided and Čerenkov configurations and hence should be of interest in the realization of short-wavelength light sources.
© 1998 Optical Society of America
[Optical Society of America ]
OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(130.4310) Integrated optics : Nonlinear
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4360) Nonlinear optics : Nonlinear optics, devices
(190.4390) Nonlinear optics : Nonlinear optics, integrated optics
Citation
Minu Vaya, K. Thyagarajan, and Arun Kumar, "Leaky-waveguide configuration for quasi-phase-matched second-harmonic generation," J. Opt. Soc. Am. B 15, 1322-1328 (1998)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-15-4-1322
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