Wavelength converter

Details Wavelength converter Wavelength converter

1992-01-31

1993-08-31

Gonzalez, Frank

Optical: systems and elements

Optical frequency converter

Harmonic generator

372 22, H03F 700

Patent

active

052414132

ABSTRACT:
In a wavelength converter, nonlinear medium layers containing material having an increased second order susceptibility, and linear medium layers, not containing material having a nonlinear optical characteristic of the second degree, are alternatively layered. A fundamental wave (of which the angular frequency is .omega.) is incident on the multi-layered structure in a direction normal to the major surfaces of the nonlinear medium layers and the linear medium layers, thereby generating the second harmonic of the fundamental wave (of which the angular frequency is 2.omega.). The thickness of each of the linear and nonlinear medium layers is selected to be an odd-number times as long as the coherence length. The wavelength can be converted utilizing the diagonal element d.sub.ii of the second degree, nonlinear optical tensor.

REFERENCES:
patent: 3384433 (1968-05-01), Bloembergen
patent: 3842289 (1974-10-01), Yariv et al.
patent: 4865406 (1989-09-01), Khanarian et al.
patent: 5058970 (1991-10-01), Schildkraut et al.
patent: 5121250 (1992-06-01), Shinozaki et al.
patent: 5128948 (1992-07-01), Papuchon et al.
patent: 5138686 (1992-08-01), Chikuma et al.
patent: 5150446 (1992-09-01), Penner et al.

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