Optical: systems and elements – Optical amplifier – Raman or brillouin process
Reexamination Certificate
2005-01-18
2005-01-18
Hellner, Mark (Department: 3663)
Optical: systems and elements
Optical amplifier
Raman or brillouin process
Reexamination Certificate
active
06844961
ABSTRACT:
In an Raman amplification control apparatus, a plurality of excitation light pulses respectively having a plurality of different wavelengths are generated; and the plurality of excitation light pulses are injected into a predetermined optical transmission line in turn at such timings that the plurality of excitation light pulses do not overlap even after propagation of a predetermined effective length of the predetermined optical transmission line. In addition, the plurality of excitation light pulses may be injected into the predetermined optical transmission line in such an order that the difference between propagation velocities (or wavelengths) of each pair of ones of the plurality of excitation light pulses successively injected into the predetermined optical transmission line is minimized.
REFERENCES:
patent: 5880866 (1999-03-01), Stolen
patent: 5923683 (1999-07-01), Morioka et al.
patent: 6292288 (2001-09-01), Akasaka et al.
patent: 6417958 (2002-07-01), Du et al.
patent: 6456426 (2002-09-01), Bolshtyansky et al.
patent: 20030039438 (2003-02-01), Gertsvolf et al.
patent: 20030081307 (2003-05-01), Fludger et al.
patent: WO 9211561 (1992-07-01), None
Marshall et al. Novel Delayed Pulse Techniques for Stimulated Raman Scattering. IEEE Journal of Quantum Electronics, vol. 29, No. 2, Feb. 1993. pp. 515-524.*
Fludger et al. Novel Ultra-Broadband High Performance Distributed Raman Amplification Employing Pump Modulation. OFC 2002. Mar. 17-22, 2002. pp. 183-184.*
Japanese Abstract No. 2000-314902 A, dated Nov. 14, 2000. Translated.
Japanese Abstract No. 05-288681 A, dated Nov. 2, 1993. Translated.
Japanese Abstract No. 60-066494 A, dated Apr. 16, 1985. Translated.
Goto Ryosuke
Odate Kaori
Sekiya Motoyoshi
Fujitsu Limited
Hellner Mark
Hughes Deandra M.
Staas & Halsey , LLP
LandOfFree
Method and apparatus for controlling Raman amplification... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for controlling Raman amplification..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for controlling Raman amplification... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3392296