Raychem Limited

Robert Zimmerman

Nelson M Shen

A method and apparatus for determining optical power attenuation across a splice between first and second optical fibers utilizes the algorithm:

Method and apparatus for determining attenuation across optical fiber

This invention provides a method and apparatus for making certain measurements across a splice of a first optical fiber and a second optical fiber, then calculating the actual decibel attenuation across the splice for optical signals transmitted through the fibers during actual use. The method of this invention involves measuring the optical power P.sub.2 in the second fiber with the fiber ends separated longitudinally a certain distance, then measuring the optical power P.sub.1 in the second fiber with the fiber ends positioned close together for effecting the splice. The attenuation is calculated from the formula

Growing community of inventors

Mountain View, CA, United States of America

Robert Zimmerman