Optical waveguides – With optical coupler – Particular coupling function
Reexamination Certificate
2007-05-15
2007-05-15
Song, Sarah (Department: 2874)
Optical waveguides
With optical coupler
Particular coupling function
C385S024000
Reexamination Certificate
active
10508515
ABSTRACT:
An optical system having an optical fiber path suitable for propagating an optical signal at least in a first direction, and a plurality M of optical amplifiers disposed along the optical fiber path so as to divide the optical fiber path in N spans of optical fiber. The spans of optical fiber all have substantially a length Lampand have at least one transmission optical fiber having an effective length Leff. An optical phase conjugation device is associated to one of the amplifiers of the plurality of amplifiers and is disposed in combination with a dispersion compensator. The compensator is disposed upstream from the amplifier associated to the optical phase conjugation device and is adapted for introducing an accumulated dispersion such as to substantially compensate the dispersion accumulated in a portion having a length (Lamp−Leff) of the span immediately upstream from the amplifier associated to the optical phase conjugation device.
REFERENCES:
patent: 5365362 (1994-11-01), Gnauck et al.
patent: 5798853 (1998-08-01), Watanabe
patent: 6128118 (2000-10-01), Marcenac
patent: 6175435 (2001-01-01), Watanabe
patent: 6304348 (2001-10-01), Watanabe
patent: 2003/0118347 (2003-06-01), Papaparaskeva et al.
patent: 196 22 010 (1997-12-01), None
patent: 0703 680 (1996-03-01), None
patent: 0 862 078 (1998-09-01), None
patent: 1 133 031 (2001-09-01), None
patent: WO 99/05805 (1999-02-01), None
Agrawal, G. P., “Fiber-Optic Communication Systems”, Second Edition, A Wiley-Interscience Publication, New York, pp. 448-450, (1997).
Lorattanasane, C. et al., “Design Theory of Long-Distance Optical Transmission Systems Using Midway Optical Phase Conjugation”, Journal of Lightwave Technology, vol. 15, No. 6, pp. 948-955, (Jun. 1997).
Agrawal, G.P., “Nonlinear Fiber Optics”, Second Edition, Academic Press Inc., New York, pp. 317-319, (1995).
Tsuzaki, T. et al., “Broadband Discrete Fiber Raman Amplifier with High Differential Gain Operating Over 1.65μm-band”, OFC2001, MA3-1-MA3-3, (2001).
Giles, C. R. et al., “Polarization-Independent Phase Conjugation in a Reflective Optical Mixer”, IEEE Photonics Technology Letters, vol. 7, No. 1, pp. 126-128, (Jan. 1995).
Sotobavashi, H. et al., “Effects of Asymmetric Power Change on BER Performance Using Midway Optical Phase Conjugation for Fading Cancellation in 60Ghz Millimetre-Wave Optical DSB Signal Transmission Over 100km Non-Dispersion-Shifted Fibre”, Electronics Letters, vol. 35, No. 12, (Jun. 10, 1999).
Alberti Francesco
Minzioni Paolo
Schiffini Alessandro
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
Pirelli & C. S.p.A.
Song Sarah
LandOfFree
Optical transmission system using an optical phase... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical transmission system using an optical phase..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical transmission system using an optical phase... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3799695