Method for making optical device with composite passive and tape

Details Method for making optical device with composite passive and tape Method for making optical device with composite passive and tape

1998-09-29

1999-11-16

Bowers, Charles

Semiconductor device manufacturing: process

Making device or circuit emissive of nonelectrical signal

Including integrally formed optical element

438 29, 438 39, 438 46, 372 45, 385 28, 385 49, H01S 305

Patent

active

059856858

ABSTRACT:
A semiconductor optical device, for example a laser, has a composite optical waveguide including a tapered, MQW active waveguide in optical contact with a substantially planar, passive waveguide. The fundamental optical mode supported by the composite waveguide varies along the length of the composite waveguide so that, in a laser, the laser mode is enlarged and is a better match to single mode optical fibre. A method for making such semiconductor optical devices is also disclosed.

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