Waveguide fiber for noise suppression

Details Waveguide fiber for noise suppression Waveguide fiber for noise suppression

2006-07-11

2006-07-11

Phan, Hanh (Department: 2638)

Optical communications

Transmitter and receiver system

Including optical waveguide

C398S148000, C398S149000, C398S158000, C398S159000, C398S160000, C398S081000, C385S123000, C385S124000

Reexamination Certificate

active

07076172

ABSTRACT:
An optical waveguide system exhibiting reduced noise includes a varying dispersion optical waveguide fiber and a high frequency electrical filter. The varying dispersion fiber shifts the frequency spectrum of the noise relative to that of the signal so that the noise can be filtered with substantially no effect on the signal. The varying dispersion fiber is a passive component of the optical system and is compatible with optical connecting and splicing.

REFERENCES:
patent: 4121095 (1978-10-01), Endersz et al.
patent: 6173588 (2001-01-01), Berkey et al.
patent: 6567577 (2003-05-01), Abbott et al.
patent: 6865015 (2005-03-01), Neuhauser
patent: 2005/0078352 (2005-04-01), Emori et al.
Kumar et al., “Quasi-solution Propagation in Dispersion-Managed Optical Fibers”, Optics Letters, vol. 22, No. 6, Mar. 15, 1997, pp. 372-374.
Hentschel et al., “EDFA Noise Figure Measurements A Comparison Between Optical and Electrical Techniques”, Hewlett Packard, 1994 Lightwave Symposium, pp. 1-16.

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