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Title: Performance of single- and double-ring resonators using 3×3 optical-fiber coupler
Authors: Chew, Y.H. 
Tjhung, T.T. 
Mendis, F.V.C. 
Issue Date: Dec-1993
Source: Chew, Y.H., Tjhung, T.T., Mendis, F.V.C. (1993-12). Performance of single- and double-ring resonators using 3×3 optical-fiber coupler. Journal of Lightwave Technology 11 (12) : 1998-2008. ScholarBank@NUS Repository.
Abstract: This paper investigates theoretically the transmission characteristics of single- and double-ring resonators using 3×3 optical-fiber couplers. Two configurations of a 3×3 coupler are considered: configuration A, with the three fibers centered at the vertices of an equilateral triangle, and configuration B, with their centers aligned in a straight line. It is found that a ring resonator using configuration A does not show any performance improvement over ring resonators using 2×2 couplers. On the other hand, a single-ring resonator using configuration B has a performance close to resonators using 2×2 couplers. It is also shown that a double-ring resonator using a 3×3 coupler exhibits resonance with a double peak, which may find application in the filtering of coherent frequency-shift keying (FSK) signals after optical amplification in an optical-fiber line repeater.
Source Title: Journal of Lightwave Technology
ISSN: 07338724
DOI: 10.1109/50.257962
Appears in Collections:Staff Publications

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