Optical: systems and elements – Optical amplifier – Raman or brillouin process
Reexamination Certificate
2006-05-30
2006-05-30
Hellner, Mark (Department: 3663)
Optical: systems and elements
Optical amplifier
Raman or brillouin process
C359S337000
Reexamination Certificate
active
07054060
ABSTRACT:
In an optical transmission system utilizing bi-directional Raman amplification, propagation directions and wavelengths of Raman pumps are chosen such that four-wave mixing products among the pump wavelengths are minimized in a signal wavelength region.
REFERENCES:
patent: 6867905 (2005-03-01), Griseri et al.
patent: 6903863 (2005-06-01), Carniel et al.
patent: 2001/0036004 (2001-11-01), Ackerman et al.
patent: 2002/0145793 (2002-10-01), Bock et al.
patent: 1 130 704 (2001-09-01), None
patent: 1 130 705 (2001-09-01), None
patent: 1 239 558 (2002-09-01), None
patent: 2002 23206 (2002-01-01), None
patent: 02/29943 (2002-04-01), None
W. Jiang et al., “Crosstalk in Fiber Raman Amplification for WDM Systems”, Journal of Lightwave Technology, vol. 7, No. 9, Sep. 1989, pp. 1407-1411.
Y. Emori et al., “100 nm bandwidth flat gain Raman amplifiers pumped and gain-equalized by 12-wavelength-channel WDM high power laser diodes”, Optical Fiber Communication Conference 1999 Technical Digest, pp. PD19-1 to PD19-3 Suppl.
Kaminov et al., Optical Fiber Telecommunications IIIA, Academic Press, 1997, pp. 212-225, and 252-255.
K. Inoue, “Polarization Effect on Four-Wave Mixing Efficiency in a Single-Mode Fiber”, IEEE Journal of Quantum Electronics, vol. 28, No. 4, Apr. 1992, pp. 883-894.
R.E. Neuhauser et al., “Impact of nonlinear pump interactions on broadband distributed Raman amplification”, Optical Fiber Communication Conference 2001, Technical Digest, pp. MA4-1 to MA4-3.
Hainberger Rainer
Terahara Takafumi
Fujitsu Limited
Hellner Mark
Staas & Halsey , LLP
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