Title:
DETECTION APPARATUS, FIBER LASER, FIBER LASER SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/124038
Kind Code:
A1
Abstract:
The purpose of the present invention is to suppress, better than a conventional method, an increase of errors contained in a monitored value which is associated with a change in the relative positions of an optical fiber, a reflector, and a photodetector. Provided is a detection apparatus (1) that detects Rayleigh scattered light leaking from a side surface of an optical fiber (OF), the detection apparatus (1) comprising: a photodiode (11a) that has a light-receiving surface (11a1); and a base plate (12) that has an upper surface (12a) facing the light-receiving surface (11a1) with the optical fiber (OF) therebetween, wherein the upper surface (12a) of the base plate (12) is flat.
Inventors:
YOSHIDA KENSUKE (JP)
Application Number:
PCT/JP2017/046570
Publication Date:
July 05, 2018
Filing Date:
December 26, 2017
Export Citation:
Assignee:
FUJIKURA LTD (JP)
International Classes:
G01J1/02; G01J1/00; G02B6/42; H01L31/0232; H01S3/00; H01S3/067
Domestic Patent References:
| WO2014148511A1 | 2014-09-25 | |||
| WO2014014068A1 | 2014-01-23 |
Foreign References:
| JP2015159195A | 2015-09-03 | |||
| JP2015525342A | 2015-09-03 | |||
| JP2005208239A | 2005-08-04 | |||
| JP2013174583A | 2013-09-05 | |||
| JP2014060251A | 2014-04-03 | |||
| JP2016076598A | 2016-05-12 | |||
| US20060165343A1 | 2006-07-27 | |||
| US20100142906A1 | 2010-06-10 | |||
| JP2017208370A | 2017-11-24 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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