Title :
A wide-FSR waveguide double-ring resonator for optical FDM transmission systems
Author :
Oda, Kazuhiro ; Takato, Norio ; Toba, Hiromu
Author_Institution :
NTT Transmission Syst. Lab., Kanagawa, Japan
fDate :
6/1/1991 12:00:00 AM
Abstract :
A wide free-spectral-range (FSR) waveguide double-ring resonator (DRR) is investigated for use in optical frequency-division multiplexing (OFDM) transmission systems. It consists of two ring resonators with different radii and three directional couplers. The FSR is determined by the least common multiple of the FSRs of the two ring resonators. In order to determine the parameters of the DRR, transmission equations of the DRR, which have different radii, are derived by using the scattering matrix. The dependence of the transmittance characteristics of the DRR on the amplitude coupling coefficients of directional couplers and on the propagation loss of the ring waveguides is studied. The design guidelines for OFDM transmission systems are described
Keywords :
directional couplers; frequency division multiplexing; integrated optics; optical communication equipment; optical couplers; optical resonators; amplitude coupling coefficients; design guidelines; directional couplers; equations; optical frequency division multiplexing transmission systems; propagation loss; radii; scattering matrix; transmittance characteristics; wide free spectral range waveguide double ring resonator; Differential equations; Directional couplers; Frequency division multiplexing; OFDM; Optical resonators; Optical ring resonators; Optical scattering; Optical waveguides; Scattering parameters; Transmission line matrix methods;
Journal_Title :
Lightwave Technology, Journal of
