Optical waveguides – With optical coupler – Plural
Patent
1995-12-22
1998-03-24
Palmer, Phan T.H.
Optical waveguides
With optical coupler
Plural
385 37, 385 14, 385 27, 385 31, 359130, 372102, 356301, G02B 628
Patent
active
057321698
ABSTRACT:
The invention provides a Fabry-Perot filter for guided light, the filter comprising two Bragg gratings that follow each other along a common light guide, a gap being left between the two gratings, wherein the two gratings have respective different lengths. The invention is particularly applicable to optical fiber telecommunications systems.
REFERENCES:
patent: 5317576 (1994-05-01), Leonberger et al.
patent: 5400422 (1995-03-01), Askins et al.
patent: 5561675 (1996-10-01), Bayon et al.
patent: 5615008 (1997-03-01), Stachele
R. Kashyap et al, "Wavelength Flattened Saturated Erbium Amplifier Using Multiple Side-Tap Bragg Gratings", Electronic Letters, vol. 29, No. 11, 27 May 1993, Enage GB, pp. 1025-1026.
S. V. Chernikov et al, "Coupled-Cavity erbium fiber lasers incorporating fiber grating reflectors", Optics Letters, vol. 18, No. 23, 1 Dec. 1993, New York, US pp. 2023-2025.
E. Delevaque et al, "Gain control in erbium-doped fibre amplifiers by lasing at 1480 nm with photo-induced bragg gratings wirtten on fibre ends", Electronics Letters, vol. 29, No. 12, 10 Jun. 1993, Enage GB, pp. 1112-1114.
Riant Isabelle
Sansonetti Pierre
Alcatel Submarcom
Palmer Phan T.H.
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