KTP segmented waveguides as concurrent Bragg reflectors and second harmonic generators
- 1 January 1993
- proceedings article
- Published by Optica Publishing Group
Abstract
A periodic modulation of optical nonlinearity by means of ferroelectric domain reversal has led to the generation of blue light by quasi-phase matching in waveguides of, e.g. lithium niobate1,2, lithium tantalate3,2, and potassium titanyl phosphate (KTP)4. When the linear optical constant (index) is also periodically modulated along the propagation direction, these waveguides may serve also as distributed Bragg reflectors5,6. The back reflection of light in a narrow band of wavelengths, subject to the Bragg condition, has been utilized to stabilize a diode laser pump, forcing it to oscillate in a narrower band of wavelengths suitable for second harmonic generation.Keywords
This publication has 5 references indexed in Scilit:
- Highly efficient quasi-phase-matched second-harmonic generation using a first-order periodically domain-inverted LiTaO3 waveguideApplied Physics Letters, 1992
- Quasi-phase-matched frequency conversion in lithium niobate and lithium tantalate waveguidesPublished by SPIE-Intl Soc Optical Eng ,1991
- Self-quasi-phase-matched second-harmonic generation in the proton-exchanged LiNbO3 optical waveguide with periodically domain-inverted regionsApplied Physics Letters, 1991
- Efficient type I blue second-harmonic generation in periodically segmented KTiOPO4 waveguidesApplied Physics Letters, 1990
- Fabrication of periodically domain-inverted channel waveguides in lithium niobate for second harmonic generationJournal of Lightwave Technology, 1989