Title:
【発明の名称】光集積回路
Document Type and Number:
Japanese Patent JPH07120835
Kind Code:
B2
Abstract:
Disclosed is an optical integrated circuit for heterodyne detection. The optical integrated circuit comprises: a semiconductor substrate; an active region of a semiconductor laser; two optical waveguides; a photo detector; and an optical coupler composed of the waveguides. The emission of light from the active region of the semiconductor laser is synthesized as local oscillation light with the transmission light. The synthesized light travels through the optical coupler and is detected by the photo detector.
Inventors:
Otani Jun
Matsui Yasushi
Matsui Yasushi
Application Number:
JP31200786A
Publication Date:
December 20, 1995
Filing Date:
December 26, 1986
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H04B10/00; G02B6/12; G02F2/00; H01S5/00; H01S5/026; H01S5/10; H01S5/125; H04B10/524; H04B10/54; H01S5/14; (IPC1-7): H01S3/18
Domestic Patent References:
| JP59227180A |
Attorney, Agent or Firm:
Tomoyuki Takimoto