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Characterisation of microring resonator optical delay and its dependence on coupling gap using modulation phase-shift technique

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6 Author(s)
Zhou, L. ; Dept. of Electron. Eng., Shanghai Jiao Tong Univ., Shanghai, China ; Sun, X. ; Xie, J. ; Zou, Z.
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The optical transmission of microring resonators is measured using a modulation phase-shift technique. The dependence of optical delay on the waveguide-to-resonator coupling gap is characterised. Experimental results reveal optical group delay can reach 270 ps when the critical coupling is approached in a high-Q microring resonator.

Published in:

Electronics Letters  (Volume:48 ,  Issue: 25 )