DocumentCode
1086945
Title
Demonstration of a fibre-optic tapped delay line spectrometer
Author
Ranalli, E. ; Lee, H.P.
Author_Institution
Dept. of Electr. & Comput. Eng., California Univ., Irvine, CA, USA
Volume
6
Issue
5
fYear
1994
fDate
5/1/1994 12:00:00 AM
Firstpage
668
Lastpage
670
Abstract
A method for obtaining power spectral estimates for narrow-band (<100 MHz) optical signals is reported, based on measurements of the far-field intensity profiles resulting from diffraction of the output of a fiber optic tapped delay line array. The device exhibits a resolving power exceeding 10/sup 7/, as well as an angular dispersion of 0.4/spl deg//GHz, representing an improvement of at least three orders of magnitude over conventional diffraction gratings.<>
Keywords
diffraction gratings; fibre optic sensors; optical resolving power; spectrometers; visible spectroscopy; 6328 A; angular dispersion; diffraction gratings; far-field intensity profiles; fiber optic tapped delay line array; fibre-optic tapped delay line spectrometer; narrow-band optical signals; output diffraction; power spectral estimates; resolving power; Delay estimation; Delay lines; Narrowband; Optical arrays; Optical diffraction; Optical fiber devices; Optical fibers; Power measurement; Signal resolution; Spectroscopy;
fLanguage
English
Journal_Title
Photonics Technology Letters, IEEE
Publisher
ieee
ISSN
1041-1135
Type
jour
DOI
10.1109/68.285574
Filename
285574
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