Opnext Japan, Inc.

Vance Products Inc.

Kazuo Takai

Keiichi Yamada

Kazumi Kawamoto

Hiroaki Furuichi

Shohei Hata

Frederick D Roemer

Katsumi Kuroguchi

Atsuhiro Yamamoto

Tsutomu Okumura

Scott Genty

An optical module for use in detecting a plurality of different wavelengths by making use of the multiple wavelength selectivity of an etalon. The optical module includes a semiconductor laser, a lens for converting a beam emitted from the semiconductor laser into a substantially parallel beam, a beam splitter for splitting the converted beam into a reflected beam and a transmitted beam, and a light-receiving element disposed such that one of the split beams is incident thereupon through an etalon, wherein a center of the reflected beam from the etalon occurring as the beam is incident upon the etalon is arranged to return to a region other than a beam-emitting portion of the semiconductor laser.

Optical module which permits stable laser output

A medical procedure involving direction of the operative end of a medical instrument via observation through a remote small caliber fiber optic bundle disposed through a prepositioned needle lumen.

Remote fiber optic medical procedure and device

Growing community of inventors

Tokyo, Japan

Kazuo Takai