Fujitsu Optical Components Limited

Ryuichi Yoshida

Hiroyuki Furukawa

Kohei Shibata

Yasuhiro Yamauchi

Toshiya Kishida

Hirohiko Sonoda

Takuya Nakao

A housing accommodates an optical waveguide substrate, plural signal light receiving elements, and a signal-light-level monitoring light receiving element. Signal light and locally oscillated light are input into optical waveguides in the optical waveguide substrate from a first end face of the optical waveguide substrate. The plural signal light receiving elements are disposed aligned on a side of a second end face opposite to a side of the first end face of the optical waveguide substrate. The signal-light-level monitoring light receiving element is disposed on a side of a third end face or a fourth end face between the first end face and the second end face of the optical waveguide substrate and at a position closer to the first end face than to the second end face.

Optical receiving apparatus, optical transmitter and receiver module, and optical transmitting and receiving apparatus

An optical device includes: an optical component; a case air-sealed, and made of metal, the optical component being secured within the case; and a lens provided within the case, and positionally adjusted in consideration of a deformation of the case air-sealed, light emitted from the optical component passing through the lens or light traveling to the optical component passing through the lens.

Optical device and method of manufacturing the same

Growing community of inventors

Kawasaki, Japan

Ryuichi Yoshida