Multipath structure for FSR expansion in waveguide-based optical ring resonator |
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| Authors: | Hidayat IS Toyota Y Torigoe O Wada O Koga R |
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| Affiliation: | Dept. of Commun. Network Eng., Okayama Univ., Japan; |
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| 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. |
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