Apparatus and methods for estimating optical insertion loss

Details Apparatus and methods for estimating optical insertion loss Apparatus and methods for estimating optical insertion loss

2006-07-18

2006-07-18

Pak, Sung (Department: 2874)

Optical waveguides

Accessories

C356S073100

Reexamination Certificate

active

07079743

ABSTRACT:
An apparatus and a method for estimating optical insertion loss of a fiber optic jumper cable are disclosed. Estimation of the insertion loss is accomplished without physically contacting an optical connection portion of the ferrule end face of the connector. In one embodiment, the apparatus and method use pattern matching to compare an optical fiber core of a reference jumper cable with an optical fiber core of a jumper cable being tested. Then, the relative signals for each pattern are compared and used for estimating the optical insertion loss using an appropriate algorithm. Additionally, the apparatus and method may include other inspection techniques such as surface and/or geometry inspection.

REFERENCES:
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patent: 5862250 (1999-01-01), Csipkes et al.
patent: 6636298 (2003-10-01), Bachelder et al.
patent: 6941016 (2005-09-01), Wagman et al.
International Electrotechnical Commission “Fiber Optic Interconnecting Devices and Passive Components”, May 14, 2002.
Data-Pixel SAS, “Interferometric Measurement of Fiber Optic Parameters”, Jan. 10, 2003.
Data-Pixel, “Digital Automated Interferometer for Surface Inspection”, admitted art.
Data-Pixel, “Koncentrik Interferometer”, admitted art.
Data-Pixel, Koncentrik data sheets downloaded from Data-Pixel website Aug. 27, 2004.
“Daisi Gives the Answer for Ferrule Measurement”, downloaded from QA-talk website on Aug. 27, 2004.
Data-Pixel, DAISI data sheet downloaded from Data-Pixel website Aug. 27, 2004.

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