Waveguide optical system

Details Waveguide optical system Waveguide optical system

1987-10-15

1989-05-23

Sikes, William L.

350 9613, 350 9614, G02B 612

Patent

active

048324280

ABSTRACT:
In a waveguide optical system having a light waveguide, a light coupler for receiving and directing a light beam propagated through the light waveguide to a condensing lens for condensing the light beam emerging from the light coupler into the form of a spot, the coupling length of the light coupler is set so that the shape of the spot is substantially circular, whereby the waveguide optical system is made suitable for use with a high-density recording optical head or the like.

REFERENCES:
patent: 4425023 (1984-01-01), Matsumoto et al.
"Low-Loss GaAs-Ga.sub.1-x Al.sub.x As double-heterostructure directional coupler" by A. Carenco, P. Sansonetti et al in Technical Digest, of the 7th Topical Meeting on Integrated and Guide-Wave Optics, Orlando Hyatt Hotel, Kissimee, Fla., Apr. 24-26, 1984.

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