Fibre-type light conversion device

Details Fibre-type light conversion device Fibre-type light conversion device

1989-05-30

1990-10-16

Lee, John D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307430, 307427, 350 9615, G02F 135

Patent

active

049629930

ABSTRACT:
A fibre-type light conversion device comprises a fibre-type light conversion element for converting the wavelength of an incident light and an optical system which introduces a light beam from a light source to the light conversion device as the incident light. The optical system is provided with a phase-shifting device which rotates the plane of polarization of the incident light. With this provision it is possible to set the efficiency of light conversion at a maximum level without necessity of rotating the light conversion element.

REFERENCES:
patent: 4272694 (1981-06-01), Jacobs
patent: 4331891 (1982-05-01), Rizzo
patent: 4617666 (1986-10-01), Liu
patent: 4784450 (1988-11-01), Jain et al.
patent: 4859876 (1989-08-01), Dirk et al.
patent: 4874221 (1989-10-01), Ohsawa
patent: 4909596 (1990-03-01), Okazaki et al.

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