Second harmonic wave generating device

Details Second harmonic wave generating device Second harmonic wave generating device

1989-12-19

1990-09-04

Sikes, William L.

350 9634, G02B 610

Patent

active

049539434

ABSTRACT:
A second harmonic wave generating device comprising a LiNbO.sub.3 thin film waveguide layer formed on a LiTaO.sub.3 substrate, in which the fundamental wavelength (.lambda..mu.m), the thickness (T .mu.m) of the LiNbO.sub.3 thin film waveguide layer, the ordinary refractive index (n.sub.oS1) of the LiTaO.sub.3 substrate at the fundamental wavelength (.lambda..mu.m), the ordinary refractive index (n.sub.oF1) of the LiNbO.sub.3 thin film waveguide layer at the fundamental wavelength (.lambda..mu.m), the extraordinary refractive index (n.sub.eS2) of the LiTaO.sub.3 substrate at a second harmonic wavelength (.lambda..mu.m/2), and the extraordinary refractive indes (n e F 2) of the LiNbO.sub.3 thin film waveguide layer at the second harmonic wavelength (.lambda..mu.m/2) are individually within the following specific ranges:

REFERENCES:
patent: 4775206 (1988-10-01), Erman et al.
patent: 4778234 (1988-10-01), Papuchon et al.

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