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We demonstrate the first all-optical carrier recovery of coherent signals using on-chip Brillouin gain, replacing digital techniques, with sub-nanosecond latency. This demonstration serves as a proof-of-concept for integrated photonic carrier recovery chips for coherent communications.
We for the first time, study the effect of signal power variations on the extinction ratio and bandwidth of on-chip Brillouin filters for applications in RF photonics and coherent optical communications. The passband extinction reduces from 35 dB to 25 dB on increasing the input signal power by 36 dB, while the bandwidth increased from 13 MHz to 30 MHz.
An optical frequency comb can generate hundreds of individual comb lines which can be employed in wavelength division multiplexing systems [1], thus reducing the cost, footprint, power consumption and system complexity when compared to using multiple lasers. However to date, comb-based communications have been limited to lower modulation formats more tolerant to phase noise, due to poor carrier to...
We report the characteristics of InGaAs-based independent double-gate FinFETs with Al2O3/LaAlO3 as gate dielectric. The device can be operated in three different modes (i.e., single-, double-, and independent double-gate) made possible by the physically separated two sidewall gates. When the device is operated in the double-gate mode, it exhibits better performance in terms of the On/Off current ratio,...
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