‘Dial up’ Photonic Integrated Circuit Filter

Photonic integrated circuits (PICs) are capable of providing advanced signal processing functions in small footprints; however, their operation is affected by fabrication tolerances in addition to …

XPM Efficiency Versus Symbol Rate

Cross-Phase Modulation (XPM) limits the information capacity of optical fibers, due to the power fluctuations in one channel affecting the phases of the other channels. A decade ago, we showed that…

Analog Low-Latency Kramers-Kronig optical Single-Sideband Receiver

Kramers-Kronig (KK) receivers have been shown to be able to cancel the signal-signal beat interference that occurs upon direct-photodetection in optical single-sideband systems, where the transmitt…

Minimum Phase Conditions in Kramers-Kronig Optical Receivers

Enhanced Kramers-Kronig Single-Sideband Receivers

Nanosecond-Latency IM/DD/DSB Short-Haul to Coherent/SSB Long-Haul Converter

We demonstrate an all-analogue converter from optical intensity modulated direct-detection double-side-band signals to field-modulated optical coherent signals, which is based on the Weaver method …

Filtered Carrier Phase Estimator for High-Order QAM Optical Systems

Selectable-FSR 10-GHz Granularity WDM Superchannel Filter in a Reconfigurable…

Distributed Nonlinear Compensation Using Optoelectronic Circuits

Real-Time Demonstration of Augmented-Spectral-Efficiency DMT Transmitter Usin…