Title:
光ヘテロダイン検波器及び光ヘテロダイン検波器を用いたレーザレーダ装置。
Document Type and Number:
Japanese Patent JP7180866
Kind Code:
B2
Abstract:
To provide an optical heterodyne detector which can make a sensitive and reliable measurement, and a laser radar device using the optical heterodyne detector.SOLUTION: The present invention includes: an image forming lens 20 for collecting a reception light 42, which is a transmission light 46 output from a laser light source 114 and reflected by an object; a waveguide 102A, through which a reference light 44 as a part of the light output from the laser light source 114 and the reception light 42 collected by the image forming lens 20 propagate; and a photo diode 30 for receiving the light generated by causing the reference light 44 and the reception light 42 to interfere with each other in a waveguide 120A and converting the light into an electric signal.SELECTED DRAWING: Figure 9
Inventors:
Daisuke Inoue
Tadashi Ichikawa
Akari Nakao
Tatsuya Yamashita
Toshihiro Oda
Tadashi Ichikawa
Akari Nakao
Tatsuya Yamashita
Toshihiro Oda
Application Number:
JP2018186732A
Publication Date:
November 30, 2022
Filing Date:
October 01, 2018
Export Citation:
Assignee:
株式会社豊田中央研究所
International Classes:
G01S7/481; G01S17/36; G02F1/21; G02F2/00; H01L31/10
Domestic Patent References:
| JP2011503526A | ||||
| JP2016105082A | ||||
| JP20146338A |
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazuho
Kato Kazuho