DocumentCode :
1027597
Title :
Performance prospects for distributed measurement of Raman gain characteristics in optical fibers
Author :
Toge, Kunihiro ; Hogari, Kazuo ; Horiguchi, Tsuneo
Author_Institution :
NTT Access Service Syst. Labs., NTT Corp., Ibaraki, Japan
Volume :
22
Issue :
7
fYear :
2004
fDate :
7/1/2004 12:00:00 AM
Firstpage :
1701
Lastpage :
1706
Abstract :
A new technique has already been proposed by the authors for measuring Raman gain characteristics in single-mode optical fibers. The advantage of this technique is that it enables the evaluation of the longitudinal distribution of the Raman gain efficiency in concatenated fibers. With such distributed measurements, it is important to investigate the measurable length, which is determined by the signal-to-noise ratio (SNR) of the detected signal. In this paper, the maximum measurable length available with the previous technique was clarified based on both theoretical and experimental investigation. The SNR of the detected signal has been calculated theoretically, and it has been found that calculated and experimental results were in good agreement. Based on the SNR calculation, the measurable lengths available with this technique for various spatial resolutions and signal wavelengths are discussed.
Keywords :
laser cavity resonators; optical fibre amplifiers; optical fibre networks; optical fibre testing; -29 dB; -33 dB; 0.1 to 10 GHz; 2 GHz; 39 dB; 42 dB; 5 GHz; 500 m; Raman gain; Raman scattering; distributed measurements; optical fiber amplifiers; optical fiber measurements; optical fibers; signal-to-noise ratio; time-domain measurements; Gain measurement; Length measurement; Optical fiber networks; Optical fiber testing; Optical fibers; Optical pulses; Performance gain; Pulse amplifiers; Stimulated emission; Wavelength measurement; Optical fiber amplifiers; Raman scattering; optical fiber measurements; time-domain measurements;
fLanguage :
English
Journal_Title :
Lightwave Technology, Journal of
Publisher :
ieee
ISSN :
0733-8724
Type :
jour
DOI :
10.1109/JLT.2004.831177
Filename :
1310417
Link To Document :
بازگشت