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We experimentally demonstrate optical signal processing in silicon ring resonators, including slow-light delay of digital and microwave photonic signals, dense wavelength conversions/multicasting, optical up-conversion, format conversions, temporal differentiation, and bio-sensing.
We experimentally demonstrate optical signal processing in silicon ring resonators, including slow and fast in silicon rings, optical delay of digital and microwave photonic signals, dense wavelength conversions/multicasting, optical up-conversion, format conversions, temporal differentiation, and bio-sensing.
We propose and demonstrate a tunable broadband photonic radio frequency (RF) phase shifter based on a silicon microring resonator. This scheme utilizes the thermal nonlinear effect of the silicon microring to change the electrical phase of the RF signal with a wide tuning range. A prototype of the phase shifter is experimentally demonstrated for a 40-GHz signal with a 0-4.6-rad tuning range.
We propose and demonstrate a novel micrometer-scale optical up-converter for converting 1-Gb/s data to 40-GHz milimeter-wave. This scheme utilizes the free-carrier dispersion effect in a resonance-split silicon microring resonator.
We report various all-optical signal processing functions using silicon microring resonators with a 450times250-nm cross section. These demonstrations include slow-light delay of phase-modulated data and microwave photonic signal, wavelength conversion/multicasting, format conversions, and optical differentiation.
We propose a label-free biosensor based on concentric micro-ring resonators in silicon on insulator (SOI). The concentric micro-ring resonators offer another freedom to obtain deeper notches for higher detection sensitivity. The expanded modes also provide larger sensing area. A resonant frequency shift of ~1.37 nm is demonstrated, by numerical simulations, between the situation of using a single...
We demonstrate a microwave-photonic phase shifter based on a 20-mum-radius silicon micro-ring resonator, providing a tunable phase shift for a 20-GHz signal in a range of 0 - -4.6 rad.
All-optical tunable delay, dense wavelength conversion, and non return-to-zero (NRZ) to alternate-mark-inversion (AMI) format conversion are experimentally demonstrated using silicon microrings with a 450 times 250 nm cross-section size.
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