TITLE

Fiber-optic device acting as a high-accuracy wide-range variable optical attenuator

AUTHOR(S)
Yamashita, Mikio
PUB. DATE
September 1990
SOURCE
Review of Scientific Instruments;Sep90, Vol. 61 Issue 9, p2476
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A high-accuracy optical attenuator with transmission efficiencies variable in pseudobinary steps over a wide range is described that uses multilegged optical fiber lightguides and a set of optical shutters. It features excellent stability and reproducibility, and thus has proved particularly useful in some specific applications. Procedures for calibrating the relative light transmission efficiencies by the use of scintillations as a stable pulsed light source are also described in some detail.
ACCESSION #
9787466

 

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