Reshaping of an ultrashort Gaussian-like pulse into a flat-top pulse is demonstrated using an integrated Mach-Zehnder interferometer (MZI). The 7.8-ps Gaussian-like pulses are reshaped into nearly chirp-free 17.1-ps and 20.0-ps flat-top-pulses based on two different linear filtering schemes. In addition, the capability of this integrated MZI to generate a Hermite-Gaussian pulse with duration of a few picoseconds is demonstrated. Index Terms-Complementary metal-oxide semiconductor (CMOS)-compatible optical components, flat-top pulse generation, linear filtering.

We study the process variability impact of silicon ring modulators on resonance wavelength, which is a key parameter to design WDM communication systems based on those devices.

Fiber Bragg Grating temperature monitoring results of two mechanical parts located in the exhaust system of a helicopter engine test bench are reported and compared to thermocouple and SWIR camera measurements.

Phase reconstruction based on optical ultrafast differentiation is implemented using an integrated-waveguide Mach-Zehnder interferometer to demonstrate self-referenced phase characterization of gigahertz-rate complex modulated signals (e.g., quadrature phase shift keying and amplitude phase shift keying modulation formats), through a single-shot and realtime technique. This method is transparent to both modulation format and bit rate, limited only by the bandwidth capabilities of the temporal intensity measurement instrumentation.

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