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Abstract-We demonstrate an optical packet switch (OPS) subsystem employing in-band labeling to allow for transparent routing of packets with multiple data formats and data bit rates. Packets employing in-band labels can be processed without the need to reconfigure the label processor and the switch when changing data format and bit-rate. The label processor is based on asynchronous optical signal processing in combination with a simple electronic combinatory network. This makes the label processor capable to process a large number of labels with low latency time ( 3 ns) without complicated and power-hungry high-speed packet clock recovery and serializer/deserializer circuits. Experimental results show error-free operation of 1 64 OPS subsystem for 160-Gb/s return-to-zero ON-OFF keying and 120-Gb/s nonreturn-to-zero differential phase-shift keying multiwavelength packets.Index Terms-Fiber Bragg grating (FBG), label processor, optical packet switching, optical signal processing, optical switch.

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We present a scalable, low latency optical packet switch sub-system that is capable to switch optical packets with multiple modulation formats. The optical packet switch sub-system employing in-band labeling to allow for transparent routing of packets with multiple data formats and data bit-rates. Packets employing in-band labels can be processed without the need to reconfigure the label processor and the switch when changing data format and bit-rate. The label processor is based on asynchronous optical signal processing in combination with a simple electronic combinatory network. This makes the label processor capable to process a large number of labels with low latency time (<3 ns) without complicated and power hungry high speed packet clock recovery and serializer/deserializer circuits. Results show error-free operation of 1 × 64 and eventually 1 × 4096 by using a fat tree configuration optical packet switch subsystems for 160 Gb/s RZ-OOK, 320 Gb/s NRZ-OOK, 120 (12 × 10) Gb/s DPSK and 480 (12 × 40) Gb/s OFDM multi-wavelength packets. Photonic integrated devices required for scaling the optical packet switch sub-systems will be reviewed.

To flexibly distribute RoF signals at remote site, a new colourless distribution system based on the modulated ASE noise of an SOA is proposed. Wi-Fi (802.11a/g) LAN signals are successfully transmitted including the wireless link with 3% EVM penalty