Optical waveguides – With optical coupler – Plural
Patent
1996-12-18
1997-11-18
Ullah, Akm E.
Optical waveguides
With optical coupler
Plural
359127, G02B 628
Patent
active
056895941
ABSTRACT:
A system and method for optimizing the performance, in a multichannel optical transmission system, of an optical signal regenerator, by compensating for input signal power fluctuation and for output signal gain change, and by mildly filtering individual wavelengths between gain block stages. A system and method to provide amplification and refinement of a bidirectional optical signal in a single amplification and refinement stage.
REFERENCES:
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patent: 5544268 (1996-08-01), Bischel et al.
patent: 5600466 (1997-02-01), Tsushima et al.
Optical Fiber Communication. Summaries of papers presented at the conference OFC '95, San Diego, Feb. 26 -Mar. 3, 1995, vol. 8, 26 Feb. 1995, Institute of Electrical and Electronics Engineers, pp. 272 -273, XP000517704, Chawki, M.J. et al.:"Wavelength Reuse in a WDM Unidirectional Ring Network by Using a Fiber-Grating Add/Drop Multiplexer".
Proceedings of the Optical fiber Communication Conference, San Jose, Feb. 2 -7, 1992, no Conf. 15, 2 Feb. 1992, Institute of Electrical and Electronics Engineers, pp. 203-204, XP000341678 SU S.F. et al.: "Use of Acoustooptic Tunable Filters as Equalizers in WDM Lightwave systems".
Electronics Letters, vol. 29, No. 14, 8 Jul. 1993, pp. 1268-1270, XP000322267, Seikai S. et al.: "Novel Optical circuit Suitable for Wavelength Division Bidirectional Optical Amplification".
Electronics Leters, vol. 31, No. 20, 28 Sep. 1995, pp. 1757-1759, XP000538092, Fukui M. et al.: "10 Channel x 10 Gbit/s WDM add/drop multiplexing/transmission experiment of 240 km of dispersion-shifted fibre employing unequally-spaced arrayed-waveguide-grating ADM filter with fold-back configuration".
MCI Communications Corp.
Ullah Akm E.
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