Quasi Phase Matched Second Harmonic Generation in Lithium Tantalate Waveguides: Experiments and Simulations

Several materials and methods are investigated in the search for devices for efficient frequency doubling of infra-red diode lasers to blue. Such compact light sources would find important applications in i.e. optical data storage, displays and spectroscopy. For efficient second harmonic generation...

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Bibliographic Details
Main Authors: Ahlfeldt, Henrik, Arvidsson, Gunnar, Jaskorzynska, Bozena
Format: Report
Language:English
Subjects:
BLUE(COLOR)
Component Reports
DIODES
FREQUENCY MULTIPLIERS
HARMONICS
LASERS
LIGHT SOURCES
Lithium matching
LITHIUM NIOBATES
MATERIALS
MODULATION
OPTICAL DATA
OPTICAL WAVEGUIDES
Optics
PHASE
POLYMERS
Potassium titanyl phosphates
Second harmonic generation
SPECTROSCOPY
SWEDEN
SYMPOSIA
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Summary:Several materials and methods are investigated in the search for devices for efficient frequency doubling of infra-red diode lasers to blue. Such compact light sources would find important applications in i.e. optical data storage, displays and spectroscopy. For efficient second harmonic generation (SHG), the phase-matching condition must be fulfilled. In the quasi-phase-matching (QPM) scheme, phase matching is accomplished by periodic modulation of the nonlinear properties of the material. Quasi-phase-matched SHG of blue light in waveguides has been demonstrated in lithium niobate, in polymers and recently very encouraging results have been obtained in KTP. Lately there have also been reports on quasi-phase-matched SHG of blue light in lithium tantalate waveguides. This article is from 'OSA Proceedings of the Topical Meeting on Nonlinear Guided-Wave Phenomena Held in 2-4 September 1991. Cambridge, England United Kingdom. Volume 15', AD-A253 471, p230-233.