| 摘要 |
Routers for trunk telecommunication systems currently operate at 2.5Gb/s. Ne xt generation routers will be required to switch 128 input data streams into 12 8 output data streams, each data stream being at a data rate of 10Gb/s. Curren t routers employ massively parallel electronic switches to route data at 1.25Gb/s. Such technology is reaching its limit and a new approach to high- speed switching is required. The present invention provides an appartus and method for enabling such high-speed switching by providing a data compressio n apparatus which comprises a pulsed chirped laser (226) coupled to a modulato r (218, 220), the modulator (218, 220) being coupled to a compressor (228, 230 ). A chirped laser pulse having the duration of a data packet is modulated with data received on an input channel and then passed through the compressor (22 8, 230) in order to generate a compressed modulated data pulse for high speed switching.
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