A resonator structure is presented comprising a closed loop resonator having {HEAD ~ a distributed Bragg reflector} for confining {TAIL ~ the light} within the guiding core 
for confining
A resonator structure is presented comprising a closed loop resonator having { HEAD ~ a distributed Bragg reflector } for confining { TAIL ~ the light } within the guiding core
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH