Abstract

A fiber-optic programmable optical pulse shaper is experimentally demonstrated using multi-level phase-only linear filtering, capable of synthesizing arbitrary (including asymmetric) temporal intensity waveforms. The reconfigurable filtering operation is implemented in the time domain with a single electro-optic phase modulator (EO-PM) driven by a high-speed electronic arbitrary waveform generator (AWG). The required multi-level modulation signal is calculated from a combination of optimization algorithms, namely the Gerchberg–Saxton algorithm (GSA) and a genetic algorithm (GA). We report the synthesis of high-quality, arbitrary temporal intensity profiles, including asymmetric triangular waveforms and $\sim 150\mathrm{Gbaud}$ random on–off keying (OOK) pulse and pulse amplitude-modulation (PAM) code sequences, with a temporal resolution of $\sim 2\mathrm{ps}$ over a maximum time window of $\sim 60\mathrm{ps}$.

© 2016 Optical Society of America

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