Apparatus for providing timing jitter tolerant optical...

Details Apparatus for providing timing jitter tolerant optical... Apparatus for providing timing jitter tolerant optical...

2006-02-21

2006-02-21

Font, Frank G. (Department: 2883)

Optical waveguides

Temporal optical modulation within an optical waveguide

C385S027000

Reexamination Certificate

active

07003180

ABSTRACT:
Apparatus for providing timing jitter tolerant optical modulation of a first signal by a second signal, the first signal having a first wavelength, the second signal including a plurality of second signal pulses having a second pulse shape and a second wavelength. The apparatus includes a first signal input port, a second signal input port, a coupler, a grating and a non-linear optical device. The apparatus is configured to direct the second signal at the second signal input port to the non-linear optical device via the coupler and the grating, and to direct the first signal at the first signal input port to the non-linear optical device. The grating is a superstructured fibre Bragg grating that converts the second signal pulses into intermediary pulses each having an intermediary pulse shape. The intermediary pulse shape is such that it provides a switching window within the non-linear optical device.

REFERENCES:
patent: WO 98/50824 (1998-11-01), None
patent: WO 99/21037 (1999-04-01), None
patent: WO 99/55038 (1999-10-01), None
M. Ibsen et al, “Optimised square passband fibre Bragg grating filter with in-band flat group delay response”, Electronics Letters, IEE Stevenage, GB, vol. 34, No. 8, Apr. 16, 1998, pp. 800-802, ISSN: 0013-5194.
P. Petropoulos et al. “Shaprin gof soliton- into rectangular-pulses using a superstructure fibre Bragg grating”, OSA Trands in Optics And Photonics Series, vol. 33, Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides, pp. 67-71, 2000, Washington, DC, USA, ISBN: 1-55752-593-5.

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