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1 ,\times, 4 Wavelength Reconfigurable Photonic Switch Using Thermally Tuned Microring Resonators Fabricated on Silicon Substrate

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7 Author(s)
Han-Yong Ng ; Univ. of Miami, Coral Gables ; Wang, M.R. ; Daqun Li ; Xuan Wang
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We report a 1 times 4 wavelength reconfigurable photonic switch based on thermally tuned microring resonators (MRs) fabricated on a silicon-on-insulator substrate. The high refractive index of silicon facilitates the formation of highly confined optical waveguides and MRs. With a fabricated ring diameter of about 10 mum, the MRs support 18-nm free-spectral range and 0.15-nm resonant spectral linewidth. Many wavelength channels can be selected through local thermal tuning of resonators for reconfigurable switching and wavelength-division multiplexing/demultiplexing. The switch response time is about 1 ms. The results suggest the feasibility of high port-count photonic circuitry with dynamic wavelength reconfiguration capability for the development of large-scale integrated photonics.

Published in:

Photonics Technology Letters, IEEE  (Volume:19 ,  Issue: 9 )

Date of Publication:

May1, 2007

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