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US 5,291,568 AGranted
Optical wavelength conversion module
AssigneeSumitomo Electric Industries, Ltd.
InventorsTakafumi Uemiya, Naota Uenishi
Life of this patent
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Abstract
An optical wavelength conversion module includes a semiconductor laser light source; a lens for focusing semiconductor laser light; and a fiber-type optical wavelength converter with a core and a clad having a refractive index lower than the core. At least one of the core and clad is formed of a non-linear optical material. The number of longitudinal modes of oscillation of the semiconductor laser light source is not less than three.
Claims4
An optical wavelength conversion module, comprising:
- a semiconductor laser light source;
- a first lens for focusing semiconductor laser light;
- and
- a fiber-type optical wavelength converter including a core and a clad having a refractive index lower than said core, at least one of said core and clad being formed of a non-linear optical material, whereby said fiber-type optical wavelength converter produces light having converted wavelength from said semiconductor laser light incident to said core;
- wherein the number of longitudinal modes of oscillation of said semiconductor laser light source is not less than three.
2 more elements
Dependencies are inferred from the claim text.