Abstract-In this paper we introduce two architectures for optical packet switches. One is a bufferless switch employing shared Tunable Wavelength Converters (TWCs), and the other is a packet switch with Partially Shared Buffering (PSB). They were proposed for solving problems of contention resolution. The bufferless optical packet switch employing shared TWCs allows a saving in terms of employe...

for A Large-Capacity Optical ATM Switch H. Jonathan Chao and Jin-Soo Park Polytechnic University Department of Electrical Engineering 6 Metrotech Center, Brooklyn, NY 11201 [email protected], [email protected] Abstract Two centralized arbitration schemes are proposed for a large-capacity optical ATM switch: the dual round-robin matching (DRRM) scheme and the centralized multicast content...

The use of optical buffer memories in packet switched networks is unavoidable to resolve contention problems. The fiber loop buffer memory of one slot delay is used in number of all optical switch architectures. In this paper, the behavior of such a loop memory is simulated and results are presented.

We have developed the high-speed PLZT ((Pb,La)(Zr,Ti) O3) optical content distribution system having slot-switch and GMPLS controller in the 1X8 distribution switch. The switching speed of our developed system is less than 10 nsec and the world fastest switching time in the optical switch with more than 8 outputs. The system can switch transparent time slot whose size can range from 10 nsec to ...

This paper describes new optical switching architectures supporting asynchronous variable-length packets. Output line contention is resolved by optical delay line buffers. By introducing a WDM technology, parallel buffer can be equipped with multiple wavelengths on the optical delay line buffer. Using an ul-trafast photonic label processing technique, an implementation of our architecture would...

Packet-switching characteristics are optimized across an integrated 4 x 4 optical cross-point switch matrix based on active vertical coupler switch cells. Optical gain is demonstrated across the entire matrix with a <3-dB difference between the shortest and longest switching paths.

The dynamical properties of dispersive optical bistability in a semiconductor laser biased from below to above threshold are investigated both experimentally and theoretically. The optical bistability switch-off time is found to decrease continuously from below to above threshold. A fast switch-off in less than 100 ps has been observed when the laser operates in the injection-locked condition.

We reports operating condition of a modified architecture of all-optical wavelength-selective switch controlled by a single light. Switching characteristics in a proposed circuit are analyzed with regard to their phase dependence. Keywordsoptical switch; asymmetric X-junction coupler; Raman amplifier; wavelength-selective; Integrated optics; Optical waveguide; Wide wavelength range

A novel 2 x 2 polarization-independent optical switch with holographic optical elements is proposed. The switch consists of an electro-optic half-wave plate sandwiched between two pairs of holographic polarization beam splitters. Normally incident input and output couplings of this compact and lightweight device provide better flexibility and easier alignment for system applications.