HYBRID GUIDED-MODE RESONANCE FILTER AND METHOD EMPLOYING DISTRIBUTED BRAGG REFLECTION

摘要

hybrid waveguide-mode resonance (GMR) gratings, optical filters and a method of optical filtering is a distributed Bragg reflection The adopted. Hybrid GMR grating comprises a waveguide layer that supports the GMR having a GMR resonant frequency. Hybrid GMR grating further comprises a distributed Bragg reflector (DBR) that reflects another portion of the diffraction grating, and the incident signal to couple to the waveguide layer portion of the signal that is incident on the hybrid GMR grating. The coupled portion of the incident signal has a frequency corresponding to the GMR resonant frequency. The reflection portion may have a frequency remote from the GMR resonant frequency. The hybrid GMR grating comprises an optical filter and coupler. The method includes adding the coupling out the reflected signal from the hybrid GMR grating comprising: coupling the optical signal, and a hybrid GMR grating. ;