DocumentCode
779821
Title
Improving measurement sensitivity of the raman gain coefficient in optical fibres using pump/signal simultaneous lock-in detection
Author
Abedin, Kazi S.
Author_Institution
Nat. Inst. of Inf. & Commun. Technol., Tokyo
Volume
42
Issue
20
fYear
2006
fDate
9/28/2006 12:00:00 AM
Firstpage
1138
Lastpage
1139
Abstract
A highly sensitive method for measuring the Raman gain coefficient using short lengths of optical fibre is demonstrated. Square-wave modulation is applied to both the pump and the signal, and lock-in detection is performed at the sum modulation frequency. A Raman on/off gain as small as 0.0015 dB can be readily measured
Keywords
Raman spectra; gain measurement; optical fibre testing; optical variables measurement; Raman gain coefficient; measurement sensitivity; optical fibres; pump/signal simultaneous lock-in detection; square-wave modulation; sum modulation frequency;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20061915
Filename
1706020
Link To Document