The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 20, 1996
Filed:
Apr. 21, 1995
Akihiro Sawaki, Hamamatsu, JP;
Musubu Koishi, Hamamatsu, JP;
Hamamatsu Photonics K.K., Hamamatsu, JP;
Abstract
This invention relates to an optical fiber component characteristics measuring device which can measure with high precision for a short period of time characteristics of the optical fiber component. The optical fiber component characteristics measuring device comprises a plurality of light sources for emitting light of set different wavelengths, optical coupling means for mixing light from the light sources, coupling means for supplying mixed light from the optical coupling means to an optical fiber component to be measured, spectroscoping means for spectroscoping light from the optical fiber component to be measured, and photoelectric means for parallelly detecting spectra of the light of the respective wavelengths outputted by the spectroscoping means and for converting the spectra into electric signals corresponding to the respective wavelengths. On the input side of the spectroscoping means there is provided optical switch means for switching sequentially between that of light outputted from the plurality of output optical fibers of the optical fiber component to be measured, which has one of said different wavelengths. The light from the optical switch means is detected by the spectroscoping means, whereby characteristics of the optical fiber component including a plurality of output optical fibers can be measured.