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Ring resonator adopting multimode waveguide turning mirrors

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3 Author(s)
C. L. Chiu ; Institute of Electro-Optical Engineering, National Sun Yat-SenUniversity, Kaohsiung 804, Taiwan ; T. S. Lay ; T. Y. Chang

The characteristic response of In0.532Ga0.468As/In0.528Ga0.257Al0.215As on InP single ring resonators in the form of race tracks with a radius of 260(150), 110(600) and 260(150) mum are presented. The used 2times2 multimode interference (MMI) couplers with coupling factor 0.85 are as short as 128 mum. Deep etching vertical mirror was used in the middle of MMI crossing. The free spectral ranges of 83 GHz and the through output (max)-drop (min) ratio of 21 dB have been achieved for the single ring resonator.

Published in:

Indium Phosphide and Related Materials, 2008. IPRM 2008. 20th International Conference on

Date of Conference:

25-29 May 2008