All-optical label swapping techniques for optical packets at bit-rate beyond 160 Gb/s

\u3cp\u3eIn this paper two different paradigms to realize a scalable all-optical packet switch with label swapping will be presented. All the functions required for switching the packets are based on all-optical signal processing without any electronic control. This allows very low latency and potential photonic integration of the systems. We report for both techniques experimental results showing the routing operation of the 160 Gb/s packets and beyond. We will discuss and compare both techniques in term of devices and bit-rate scalability, latency, power consumption, power penalty performance and cascadability as key parameters for the realization of an all-optical packet switch.\u3c/p\u3

Demonstration of an all-optical data vortex switch node base on MZI-SOA gates

We have proposed and demonstrated the fully all-optical operation of a data vortex switch node based on MZI-SOA gates. All-optical self-routing of WDM 10Gbps optical packets has been successfully achieved

All-optical packet switching and label rewriting for data packets beyond 160 Gb/s

\u3cp\u3eIn this paper, two different paradigms to realize a scalable all-optical packet switch with label swapping will be reviewed. The two paradigms are based on wavelength routing switch and space routing switch. All the functions required for switching the packets, namely, the label processor, the label rewriter, and the optical switch, are based on all-optical signal processing with no electronic control. This allows for very fast processing time and potential photonic integration of the systems. We report, for both techniques, experimental results showing the routing operation of the 160-Gb/s packets and beyond. We will discuss and compare both techniques in terms of devices and bit-rate scalability, power consumption, power penalty performance, and cascadability as key parameters for the realization of an all-optical packet switch.\u3c/p\u3

New architecture for reconfigurable WDM-PON networks based on SOA gating array

A new architecture of reconfigurable WDM-PON networks for the dynamic capacity allocation is proposed and experimentally demonstrated. The architecture based on an SOA gate allows 1 µs switching time to the re-allocation of wavelength resources

Optical routing of millimeter-wave signals with a new frequency multiplication scheme

We demonstrate a new OFM configuration using XGM in SOA for simultaneous all-optical generation and routing of mm-wave signals for in-building networks. After routing, EVM of 4.5% is achieved for 20MS/s, 64- QAM data at 39.6GHz

Radio-over-fiber techniques for advanced in-building networks

With the optical frequency multiplying technique, high-capacity radio-over-multimode fiber networks can be realized for in-building applications. Dynamic wavelength routing provides extra network flexibility for e.g. delivering capacity-on-demand, and can be realized with optical wavelength conversion

High capacity radio-over-fiber systems for multi-carrier signals with dynamic routing

We address the successful transmission and optical dynamic routing of high capacity RF data using an SCM or OFDM format over multi-mode fiber links, by the means of optical frequency multiplication

All-optical routing architecture of radio signals using label processing technique for in-building optical networks

We demonstrate an all-optical scheme for routing radio signals through optical fibres employing label-processing technique. 10-MS/s 64-QAM signal carried on 5-GHz RF carrier was successfully routed with EVM of 1.81%

Cyclic-linked flexibility : an architectural approach for reconfigurable optical WDM-TDM access networks

Next-generation optical access networks should not only increase capacity but also be able to redistribute capacity on the fly in order to manage larger variations in traffic patterns. Wavelength reconfigurability is an instrument that can enable such capability of network-wide bandwidth redistribution since it allows dynamic sharing of both wavelengths and timeslots in WDM-TDM optical access networks. However, reconfigurability typically requires tunable lasers and tunable filters at the user side, resulting in cost-prohibitive optical network units (ONUs). In this paper, we propose a novel concept, named cyclic-linked flexibility, to address the cost-prohibitive problem. By using cyclic-linked flexibility, the ONU needs to switch only within a subset of two preplanned wavelengths, but the cyclic-linked structure of wavelengths allows free bandwidth to be shifted to any wavelength by a rearrangement process. A basic rearrangement algorithm is developed to demonstrate that cyclic-linked flexibility performs close to a fully flexible network in terms of blocking probability, packet delay, and packet loss. Furthermore, we show that the rearrangement process has minimum impact on in-service ONUs. To realize cyclic-linked flexibility, a physical implementation is proposed with a feasible cost and wavelength-agnostic ONU design

All-optical label swapping of 160 Gb/s data packets employing optical processing of scalable in-band address labels

We present an all-optical 1x4 packet-switch by using scalable label processor and label rewriter. Label erasing/reinserting operation show 0.5 dB of penalty in two-cascaded node configuration