1 April 2008 4×4 wavelength-reconfigurable photonic switch based on thermally tuned silicon microring resonators
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Optical Engineering, 47(4), 044601 (2008). doi:10.1117/1.2909662
Abstract
Microring resonators (MRs) are important photonic devices for large-port-count photonic circuits owing to their micrometer-scale device sizes. We describe the implementation of a 4×4 wavelength-reconfigurable photonic switch consisting of eight tunable MRs fabricated on a less expensive material platform: silicon on insulator. Wavelength reconfiguration is achieved through independent thermo-optic tuning of MRs with localized Nichrome microheaters fabricated on the same silicon-on-insulator substrate. A free spectral range of 18 nm and a 3-dB linewidth of 0.1 nm were observed for the fabricated MRs with a diameter of approximately 10 μm. The switch device shows negligible channel crosstalk (<0.01 nm) and moderate switching response time (<1 ms). The switch can potentially be scaled up to benefit the development of large-scale integrated photonics.
Han-Yong Ng, Michael R. Wang, Daqun Li, Xuan Wang, Jose Antonio Martinez, Roberto R. Panepucci, Kachesh M. Pathak, "4×4 wavelength-reconfigurable photonic switch based on thermally tuned silicon microring resonators," Optical Engineering 47(4), 044601 (1 April 2008). https://doi.org/10.1117/1.2909662
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