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Opt Lett. 2006 Feb 15;31(4):456-8.

Transmission and group delay of microring coupled-resonator optical waveguides.

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  • 1Department of Electrical Engineering, California Institute of Technology, MC 136-93, Pasadena, California 91125, USA.


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 bandwidth.

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