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Telescope arrays receivers are analyzed for deep-space optical communications between Earth and Mars. It is shown that data rates up to 14 M bits/sec are possible when Mars is at the farthest range from the Earth.
We report the experimental observation of long-sustained GHz electronic oscillations resulting from coupled electron-photon dynamics in ultra-high-Q Si microdisk resonators with CW pumping. Theoretical analysis identifies conditions for steady-state GHz oscillations while suppressing thermal oscillations.
Using the experimental data we show the possibility of sub-microsecond reconfiguration of silicon photonics microresonators through pulse shaping of micro-heater excitation. Also, a novel heater structure based on small microdisk resonators with sub-hundred-nanosecond reconfiguration speed is proposed and investigated theoretically.
Integration of silicon microresonators with metallic micro-heaters optimized for low power consumption and fast reconfigurability is experimentally demonstrated. It is shown that narrower heaters improve the performance and also LPCVD SiN over-cladding enhances tuning speed.
We propose and implement a traveling-wave resonator with an interferometric coupling scheme for efficient high-bandwidth nonlinear silicon photonics. By thermal tuning of the interferometer, selective critical coupling for the pump wavelength is achieved.
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