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All-optical clock recovery at line rate (34 GHz) was demonstrated by narrow-band resonant modulation of a single-mode monolithic laser diode. The dependence of timing jitter of the recovered clock on frequency detuning and injected optical signal power has been investigated. This scheme does not require an intracavity saturable absorber and the recovered clock signal exhibits a large locking range. [ABSTRACT FROM PUBLISHER]

An all-optical address and data separation scheme is presented for short 10-Gb/s packets. The technique uses a novel packet clock recovery circuit that consists of a Fabry-Perot filter and a ultrafast nonlinear interferometer (UNI) gate to generate a local packet clock. A second cascaded UNI gate is used to separate the header and the payload, performing a simple AND operation between the packet and its self-derived clock. The proposed technique requires a small number of bits as guard band and this number is independent of the line rate. [ABSTRACT FROM PUBLISHER]