Bright output optical system with tapered bundle

Details Bright output optical system with tapered bundle Bright output optical system with tapered bundle

1988-04-12

1989-04-11

Sikes, William L.

350 9618, G02B 626, G02B 632

Patent

active

048200107

ABSTRACT:
An optical system producing bright light output for optical pumping, communications, illumination and the like in which one or more fiberoptic waveguides receive light from one or more diode lasers or diode laser bars and transmit the light to an output end where it is focused or collimated into a bright light image. The input end of the fiberoptic waveguide may be squashed into an elongated cross section so as to guide light emitted from an elongated light source such as a diode laser bar. The waveguides are preferably arranged at the output end into a tightly packed bundle where a lens or other optical means focuses or collimates the light. The bundle has a fused output end with a taper to a smaller output diameter, thereby producing a spatially uniform high power density light output. For diode laser bars much wider than 100 microns, a plurality of waveguides may be arranged in a line to receive the light, and then stacked at the output in a less elongated configuration. In this manner, light from many diode lasers or laser bars may be coupled through the bundle into the end of solid state laser medium.

REFERENCES:
patent: 4763975 (1988-08-01), Scifres et al.

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