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Title:
APPARATUS AND METHOD FOR MEASUREMENT OF LOSS DISTRIBUTION OF BRANCH OPTICAL LINE
Document Type and Number:
Japanese Patent JPH10176976
Kind Code:
A
Abstract:

To provide an apparatus which is low-cost, whose constitution is new and which measures the loss distribution of a branch optical line and to provide a measuring method.

In a measuring apparatus, optical filters 14 whose transmission wavelengths are different from each other are arranged respectively at a branch optical line one end of which is branched into a plurality of branch optical lines 1, beams of light at different wavelengths are made incident, beams of return light are received, and the loss distribution of the branch optical lines 1 is measured individually. The apparatus is provided with a light source 11 which contains all beams of light at the transmission wavelengths, and a light receiving part 2 is provided with a means which receives light by providing a wavelength separation device 15 which separates the wavelength of the return light.


Inventors:
MOBARA MASAICHI
Application Number:
JP33595296A
Publication Date:
June 30, 1998
Filing Date:
December 16, 1996
Export Citation:
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Assignee:
SUMITOMO ELECTRIC INDUSTRIES
International Classes:
G01M11/02; G02B6/28; (IPC1-7): G01M11/02; G02B6/28
Attorney, Agent or Firm:
Yoshiki Hasegawa (3 outside)



 
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