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We demonstrate thermo-optically tunable multiple-channel micro-ring resonators as an ultra-compact on-chip spectral shaper, and tunable multiple-ring all-pass filters as variable delay lines for photonic radio-frequency waveform generation. High quality radio-frequency pulsed signals were achieved.
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 ultra-compact spectral shaping via thermo-optically tunable multiple-channel micro-ring resonators on a silicon chip, and combine it with frequency-time mapping to achieve controllable photonic radio-frequency waveform generation.
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.
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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