Single mode channel optical waveguide with a stress-induced bire

Details Single mode channel optical waveguide with a stress-induced bire Single mode channel optical waveguide with a stress-induced bire

1987-05-13

1988-11-01

Wan, Gene

350 9633, G02B 514

Patent

active

047814241

ABSTRACT:
In a single mode optical waveguide having a substrate, a cladding layer formed on the substrate, a core portion embedded in the cladding layer, and an elongated member for applying a stress to the core portion or a stress relief groove for relieving a stress from the core portion in the cladding layer along the core portion. The position, shape and material of the elongated member or the groove are determined in such a way that stress-induced birefringence produced in the core portion in accordance with a difference in thermal expansion coefficient between the substrate and the single mode optical waveguide is a desired value.

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