| 摘要 |
The present invention is an optical device achieving miniaturization, functional integration, and cost reduction, and comprises an optical element chip, an optical fiber assembly comprised of an optical fiber, a first ferrule, and a second ferrule, a package containing and enveloping the optical element chip and having an opening for introducing the optical fiber assembly, and a support pipe mounted on an extension of the opening to support an introductory part of the optical fiber into the package together with the second ferrule constituting the optical fiber assembly to be introduced into the package and to hermetically seal the package, wherein the second ferrule is fixed inside the support pipe, one end thereof protrudes toward an inner part of the package, and another end substantially protrudes at a tip part of the support pipe by a length required for the airtight fixing.
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