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We demonstrate ultra-compact spectral shaping via thermo-optically tunable multiple-channel microring resonators on a silicon chip, and combine it with frequency-time mapping to achieve photonic radio-frequency arbitrary waveform generation (RFAWG).
We demonstrate a tunable filter based on an array of silicon-on-insulator microring resonators. The resonance wavelength, extinction ratio and bandwidth can be simultaneously controlled by thermal tuning.
We demonstrate ultra-compact spectral shaping via thermo-optically tunable multiple-channel microring resonators on a silicon chip, and combine it with frequency-time mapping to achieve photonic radio-frequency arbitrary waveform generation (RFAWG).
Detailed performance of silicon microring filters is analyzed, including amplitude, phase, bandwidth and free spectral range. With experiments and simulations, we show that unavoidable trade-off must be taken among these parameters.
Mode-transition loss in silicon-on-insulator strip waveguides is reduced from 0.019dB/transition to 0.0046dB/transition for a bending radius of 4.5 micrometer, by adding a gradual-transition curved waveguide to connect the bend section and straight section.
Detailed performance of silicon microring filters is analyzed, including amplitude, phase, bandwidth and free spectral range. With experiments and simulations, we show that unavoidable trade-off must be taken among these parameters.
Mode-transition loss in silicon-on-insulator strip waveguides is reduced from 0.019dB/transition to 0.0046dB/transition for a bending radius of 4.5 micrometer, by adding a gradual-transition curved waveguide to connect the bend section and straight section.
We demonstrate critically coupled silicon microring resonators with intrinsic Q close to 300,000 and mode volume V ≈ 20×(λ/ne)3. For sub-mW optical power, large pump induced resonance shifts were observed for applications in all-optical switching.
We demonstrate accurately spaced 8-channel micro-ring resonators on a silicon-on-insulator platform via thermal tuning. The thermal cross talk between adjacent micro heaters is small.
We demonstrate critically coupled silicon microring resonators with intrinsic Q close to 300,000 and mode volume Vap20times(lambda/ne)3. For sub-mW optical power, large pump induced resonance shifts were observed for applications in all-optical switching.
Detailed performance of silicon microring filters is analyzed, including amplitude, phase, bandwidth and free spectral range. With experiments and simulations, we show that unavoidable trade-off must be taken among these parameters.
Mode-transition loss in silicon-on-insulator strip waveguides is reduced from 0.019 dB/transition to 0.0046 dB/transition for a bending radius of 4.5 micrometer, by adding a gradual-transition curved waveguide to connect the bend section and straight section.
We demonstrate accurately spaced 8-channel micro-ring resonators on a silicon-on-insulator platform via thermal tuning. The thermal cross talk between adjacent micro heaters is small.
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