Scalable Optical Packet Switches for Multiple Data Formats and Data Rates Packets

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

High-speed optical signal processing for telecom applications

Abstract-We discuss high-speed optical signal processing for telecom applications. We focus on the optical wavelength conversion and self-clocking, respectively. In the optical wavelength conversion, we report 40 Gb/s wavelength conversion that is capable of converting the same wavelength using a single semiconductor optical amplifier. Experimental proofs are presented. In addition, we report a novel self-clocking method based on in-band clock pilot insertion at the transmission data signal. The method provides clock recovery without an ultrafast phase comparator and a phase-locked loop in the receiver. Fast synchronization, low timing jitter and a highly stable recovered clock is demonstrated from 160 Gb/s OTDM data signal after 51-km fiber transmission

Scalable optical packet switches for multiple data formats and data rates packets

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

Optical switching and detection of 640 Gbits/s optical time-division multiplexed data packets transmitted over 50 km of fiber

We demonstrate 1×4 optical-packet switching with error-free transmission of 640¿Gbits/s single-wavelength optical time-division multiplexed data packets including clock distribution and short pulse generation for optical time demultiplexing based on a cavityless pulse source

Fast synchronization and low-timing-jitter self-clocking concept for 160 Gbit/s optical time-division multiplexing transmissions

We propose a self-clocking method based on in-band clock pilot insertion at the ransmission data signal. The method can achieve clock recovery without the need for an ultrafast phase comparator and a phaselocked loop in the receiver. We demonstrate fast synchronization, low timing jitter, and a highly stable recovered clock from a 160 Gbit/s optical time-division multiplexing data signal after a 51 km fiber transmission. The recovered clock shows no patterning effect with a clock dynamic range of 10 dB for error-free operation of 160 to 40 Gbit/s demultiplexing with a power penalty of 1.1 dB

Scalable optical packet switching at 160 Gb/s data rate

We investigate the feasibility of a 1×4096 optical-packet-switch (OPS) operating at 160Gb/s, by cascading two 1×64 OPSs in a fat-tree configuration. We find error-free operation with 5.7dB penalty over the complete system

Scalable Optical Packet Switches for Multiple Data Formats and Data Rates Packets

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

High-speed optical signal processing for telecom applications

We discuss high-speed optical signal processing for telecom applications. We focus on the optical wavelength conversion and self-clocking, respectively. In the optical wavelength conversion, we report 40 Gb/s wavelength conversion that is capable of converting the same wavelength using a single semiconductor optical amplifier. Experimental proofs are presented. In addition, we report a novel self-clocking method based on in-band clock pilot insertion at the transmission data signal. The method provides clock recovery without an ultrafast phase comparator and a phase-locked loop in the receiver. Fast synchronization, low timing jitter and a highly stable recovered clock is demonstrated from 160 Gb/s OTDM data signal after 51-km fiber transmission

All-optical wavelength conversion at 160 Gbit/s using SOA and silicon-on-insulator photonic circuit

Error-free operation of an all-optical wavelength converter at 160 Gbit/s based on a semiconductor optical amplifier and a silicon-on-insulator photonic circuit, consisting of two cascaded Mach-Zehnder delay interferometers, is demonstrated