Title :
Vernier effect in asymmetrical ring resonator arrays
Author_Institution :
Princeton Lightwave, NJ, USA
Abstract :
By properly adjusting the spacing between ring resonators in linear parallel arrays, it is possible to selectively depress modes of the transmission spectra and effectively increase the free spectral range of the individual rings. This enables the synthesizing of a transmission response with modal spacing that otherwise would require much smaller ring diameters. Examples of filters with narrowband and flat-top passbands, which are desirable for all-optical wavelength division multiplexed networks, are given.
Keywords :
band-pass filters; micro-optics; optical arrays; optical couplers; optical filters; optical resonators; wavelength division multiplexing; Vernier effect; all-optical wavelength division multiplexed networks; asymmetrical ring resonator arrays; filters; flat-top passband filters; free spectral range; linear parallel arrays; microring resonator arrays; modal spacing; narrowband filters; ring diameters; ring resonators; transmission response; transmission spectra; Narrowband; Network synthesis; Optical arrays; Optical filters; Optical modulation; Optical ring resonators; Optical signal processing; Resonance; Resonator filters; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
