coupled-resonator optical waveguides
نویسندگان
چکیده
A reconfigurable coupled-resonator optical waveguide made of a few directly coupled ring resonators is employed to control the delay of data streams modulated at tens of gigabits per second. A delay of 8 bit lengths (1 optical byte) with a small pulse broadening and 1 dB/bit fractional loss is achieved by using only eight rings. The limiting role of waveguide loss and spurious backreflections is experimentally investigated. The high storage efficiency (1 bit/ring) of the device enables an easy, reliable, hitless, and relatively low-powerconsuming management of the delay. A higher storage efficiency is demonstrated to be associated to an unavoidable higher pulse distortion. © 2008 Optical Society of America OCIS codes: 130.3120, 200.4490, 230.4555.
منابع مشابه
Improving the Triple Coupled Ring-Resonator Performance as an Optical Filter
In this paper, a three ring-resonator serially coupled is considered as an optical filter. We are going to improve the performance of the designed optical filter by increasing the quality factor and finesse of filtered wavelengths. The first and last rings are coupled to the bus waveguides that carry the input and output fields. The effect of coupling parameters and ring radii on the filtering ...
متن کاملCoupled Resonator Optical Waveguides
Properties of the recently introduced family of coupled resonator optical waveguides (CROWs) are reviewed, particularly with reference to CROWs designed as planar waveguides in two-dimensional photonic crystal slabs to enhance nonlinear interactions and develop novel all-optical information processing devices. Topics covered include: pulse propagation both in the nondispersive approximation and...
متن کاملTransmission and group delay of microring coupled-resonator optical waveguides.
We measured the transmission and group delay of microring coupled-resonator optical waveguides (CROWs). The CROWs consisted of 12 weakly coupled, microring resonators fabricated in optical polymers (PMMA on Cytop). The intrinsic quality factor of the resonators was 18,000 and the interresonator coupling was 1%, resulting in a delay of 110-140 ps and a slowing factor of 23-29 over a 17 GHz bandw...
متن کاملApodized coupled resonator optical waveguides using the longitudinal offset technique
In this paper, an experimental demonstration of the apodization of coupled resonator optical waveguide (CROW) devices through the longitudinal offset technique is presented for a 3 racetracks CROW device and compared against the uniform case.
متن کاملNumerical study of light propagation via whispering gallery modes in microcylinder coupled resonator optical waveguides.
By using a discontinuous spectral element method, we analyze evanescent wave coupling of whispering gallery modes (WGMs) in microcylinder coupled resonator optical waveguides (CROWs). We demonstrate successful light propagation by WGMs through a chain of coupled cylinder resonators, and that the speed of such propagation is strongly dependent on the inter-resonator gap sizes. Our simulations al...
متن کاملActive coupled-resonator optical waveguides. II. Current injection InP–InGaAsP Fabry–Perot resonator arrays
We investigate active, electrically pumped coupled-resonator optical waveguides (CROWs) in the form of InP–InGaAsP Fabry–Perot resonator arrays. We discuss the fabrication of these devices and present measurements of the transmission spectra. The signal-to-noise ratio is found to be a strong function of wavelength and degraded rapidly along the resonator chain away from the input. Our results h...
متن کامل