We report a monolithically integrated synchronized four wavelength channel mode-locked semiconductor laser chip based on arrayed waveguide grating and fabricated in the InP material system. Device fabrication was completed in a multiproject wafer foundry run on the Joint European Platform for Photonic Integration of Components and Circuits. The integrated photonic chip demonstrated 5th harmonic electrical hybrid mode-locking operation with four 400 GHz spacing wavelength channels and synchronized to a 12.7 GHz RF clock, for nearly transform-limited optical pulse trains from a single output waveguide. A low timing jitter of 0.349 ps, and RF frequency locking range of ~50 MHz were also achieved.

We present a receive-type photonic integrated circuit in InP that can demultiplex 100 wavelength channels. The channels are spaced by 1 nm. The device has integrated photodetectors for each channel, with a to-fibre sensitivity > 0.02 A/W for all channels.

We compare two field demonstrations of SPECTS-OCDMA on an 80.8-km link and 150-km link using integrated, polarization independent arrayed-waveguide grating (AWG)-based encoders/decoders, an ultra-stable optical frequency comb generator and a tunable dispersion-slope compensator.

The authors demonstrate successful encoding and decoding of SPECTS O-CDMA signals using a compact, fully integrated, AWG-based encoder/decoder. The signal is recovered in the presence of an interferer after transmission across an 80.8-km BOSSNET link.

We report electrical subharmonic hybrid mode locking of an InP colliding pulse mode locked laser emitting low-jitter, nearly transform-limited 1.26 ps output pulses at 28 GHz with optimized RF and DC biasing conditions.

This paper reports on self-aligned fabrication and successful operation of InP colliding pulse mode locked lasers using bisbenzocyclobutene (BCB) films for planarization with reduced parasitics. Measurements showed nearly transform-limited output at 28.2 GHz repetition under electrical subharmonic hybrid mode locking.

We demonstrate a monolithically integrated InP optical-CDMA encoder/decoder chip encoding sub-picosecond pulses in the 1.55 /spl mu/m wavelength window using eight orthogonal Walsh codes. The chip consists of two 200 GHz AWGs and electro-optic phase modulators in InP/InGaAsP.