Patent ID: 6819460
Filing Date: 2004-11-16
Classification: G02B,H04J,Y10S

Abstract:
An optical-waveform-sensitive routing system comprising:(a) a router responsive to change the routing of data in response to an optical pulse having a prescribed detectable temporal waveform; and (b) a composite grating for receiving input light pulses along an input path and transmitting, in response thereto, output light pulses to the router along an output path, the grating comprising an ordered assemblage of subgratings supported by an active material wherein (1) each respective subgrating satisfies at least one of (i) a Bragg condition or (ii) a surficial grating condition so as to diffract a respective subbandwidth of light from the input path to the output path, and (2) the subgratings are so configured such that an optical pulse received by the composite grating, interacting with the active material along the input path and having a prescribed address encoded input temporal waveform different from the prescribed detectable temporal waveform, triggers an output optical pulse along the output path having the prescribed detectable temporal waveform.