Optical integrated device

Details Optical integrated device Optical integrated device

2007-09-11

2007-09-11

Pak, Sung (Department: 2874)

Optical waveguides

With disengagable mechanical connector

Optical fiber to a nonfiber optical device connector

C385S092000, C385S094000

Reexamination Certificate

active

11099607

ABSTRACT:
An optical integrated device in which application of an excessive stress or the appearance of a crack due to thermal expansion mismatching is prevented. A first ferrule is fixed to an optical waveguide chip. An optical fiber is inserted into the first ferrule to fix the optical fiber. A package contains the optical waveguide chip and the first ferrule. An opening is made in a sidewall of the package to pull out the optical fiber to the outside. A pipe is airtightly fixed around the opening. A second ferrule is inserted into the pipe and is airtightly fixed to an end of the pipe. The optical fiber pulled out to the outside of the package through the opening is inserted into the second ferrule to fix the optical fiber. The optical fiber without deflection is contained in the package by making a first expansion/contraction amount created due to the thermal expansion of the package and the thermal expansion of the pipe match a second expansion/contraction amount created due to the thermal expansion of the optical fiber and the thermal expansion of the second ferrule.

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