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We describe in further detail a demonstration of a monolithic 1 × 2 silicon wavelength-selective switch in silicon photonics. The switching has a flexible grid with 32 pixels on a pitch of 100 GHz. It is extremely compact, being only 3.0 × 5.5 mm2, and it can potentially be mass-produced by a silicon foundry. It requires improvements in many characteristics, though, most notably insertion loss, resolution, and pixel count. [ABSTRACT FROM PUBLISHER]

We describe in more detail a novel InP-based comb generator for optical orthogonal frequency division multiplexed (OFDM) transmission. The device integrates a Mach-Zehnder interferometer inside an amplified ring. In order to maximize the number of lines in the spectrum, the phase modulators were designed with a 3-step asymmetric quantum well structure to maximize the index change with voltage change. We demonstrate a 6-line frequency comb which is tunable over 80 nm. The linewidth of the comb is limited by only the input laser, which makes this device especially suitable for coherent optical OFDM applications. [ABSTRACT FROM PUBLISHER]

A novel 107-Gbit/s optoelectronic receiver has been designed using hybrid integration of a photodiode and electronic demultiplexer. Using an ETDM transmitter, we achieve the lowest reported required OSNR for 107-Gbit/s CSRZ-OOK, 21 dB for 10-3 BER and a 231-1pattern length. Design methodology and performance data are presented. [ABSTRACT FROM PUBLISHER]