Patent ID: 9696501
Date: 2017-07-04
CPC Classifications: G01M,G02B

Claim:
1. A fiber coupling module comprising: an optical fiber connector detachable from a optical fiber cable; an end surface of the optical fiber cable is treated with an anti-reflection coat to set a first reflectance lower than a predetermined value relative to a light of a first wavelength band and to set a second reflectance higher than a predetermined value relative to a light of a second wavelength band excluding said first wavelength band; said fiber coupling module connecting said optical fiber cable through said optical fiber connector; a main light source that outputs the light of said first wavelength band to said optical fiber cable; an aiming light source that outputs the light of said second wavelength band to said optical fiber cable; and a detection element detects a connection status of said optical fiber cable to said optical fiber connector based on the light of said second wavelength band reflected from said end surface of said optical fiber cable.