Patent ID: 6201916
Filing Date: 2001-03-13
Classification: H04B

Abstract:
An optical waveguide communication system comprising a transmitter, a receiver, and an optical waveguide transmission path that signal-transmissively connects said transmitter and receiver; said transmission path comprising a pulse re-shaper having an input and an output, the reshaper adapted for transforming a distorted input light pulse that arrives at the input from the transmitter into a reshaped output light pulse at said output, the reshaped output light pulse provided to utilization means, where associated with said input light pulse at the input is a first center wavelength, a pulse energy, and an effective pulse width;CHARACTERIZED IN THATa) the pulse-reshaper is an all-optical pulse re-shaper comprising an optical waveguide of effective length L that signal transmissively connects said input with said output, wherein said optical waveguide comprises optically non-linear material, with predetermined periodic variation of an effective refractive index of the optical waveguide; whereinb) said optically non-linear material and said predetermined periodic variation are selected such thati) associated with said re-shaped output light pulse is a center wavelength that is essentially the same as said first center wavelength; andii) said-reshaped output pulse is a substantially transform-limited output light pulse.