Wavelength conversion device and wavelength conversion method

Details Wavelength conversion device and wavelength conversion method Wavelength conversion device and wavelength conversion method

1996-07-18

1998-03-31

Lee, John D.

Optical: systems and elements

Optical frequency converter

Dielectric optical waveguide type

385122, G02F 139

Patent

active

057344949

ABSTRACT:
A wavelength conversion device includes a wavelength conversion element. The wavelength conversion element includes a ridge waveguide layer made of nonlinear optical crystals as being a zinc-blend material. The waveguide layer is provided on a GaAs substrate made of the zinc-blend material. The waveguide layer is made of InGaAsP and interposed between clad layers made of InGaP. With this arrangement, signal light and pumping light are incident upon the wavelength conversion element (DFG or SFG element) while the pumping light is fixed in a TE polarization direction. Alternatively, the signal light may be fixed in the TE polarization direction.

REFERENCES:
patent: 5274727 (1993-12-01), Ito et al.
patent: 5434700 (1995-07-01), Yoo
patent: 5504616 (1996-04-01), Shinozaki et al.
"Wavelength conversion by quasi-phase-matched difference frequency generation in AlGaAs waveguides", S.J.B. Yoo, et al, OFC 95, pp. PD14-1

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