Title :
Multipath structure for FSR expansion in waveguide-based optical ring resonator
Author :
Hidayat, I.S. ; Toyota, Y. ; Torigoe, O. ; Wada, O. ; Koga, R.
Author_Institution :
Dept. of Commun. Network Eng., Okayama Univ., Japan
fDate :
2/20/2003 12:00:00 AM
Abstract :
A multipath structure of a ring resonator is proposed to expand the free spectral range. Simulation work indicates that the multipath ring resonator has 25 GHz-adjacent-channel crosstalk of -41 dB, maximum interchannel crosstalk of -18 dB, and -1 dB bandwidth of 4 GHz for a typical expansion factor of 10. The results show the advantages of characteristics compared with a double-cavity ring resonator and a triple-coupler ring resonator.
Keywords :
optical communication equipment; optical crosstalk; optical fibre couplers; optical resonators; 4 GHz; FSR expansion; adjacent-channel crosstalk; double-cavity ring resonator; expansion factor; free spectral range; interchannel crosstalk; multipath structure; optical communications; triple-coupler ring resonator; waveguide-based optical ring resonator;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20030276
