Fibre-type light wavelength conversion device

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

1989-05-01

1989-10-17

Lee, John D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307425, 307430, 350 9615, 350 9633, G02F 135

Patent

active

048742210

ABSTRACT:
A fibre-type light wavelength conversion device for changing the wavelength of an incident beam and emerging it as a beam having a predetermined wavelength includines a core and a cladding layer around the core. The device is characterized by the provision of a transparent conical layer provided around the cladding layer, the conical layer having a diameter increasing at a predetermined inclination from an end of incidence toward an end of emergence. According to a further feature the conical layer has a refractive index substantially the same as the cladding layer, and the inclination of the conical layer is set to be a half an angle of emergence of a beam emerging from the cladding layer with respect to a wave guiding direction.

REFERENCES:
patent: 4382660 (1983-05-01), Pratt, Jr. et al.
patent: 4396247 (1983-08-01), Simon et al.
patent: 4815079 (1989-03-01), Snitzer et al.

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