Optical waveguides – Optical fiber waveguide with cladding
Reexamination Certificate
2006-09-07
2008-10-14
Wong, Tina M (Department: 2874)
Optical waveguides
Optical fiber waveguide with cladding
C385S124000, C385S127000, C385S146000
Reexamination Certificate
active
07437040
ABSTRACT:
An optical fiber having a given refractive index profile comprises a core region and a cladding region. The core region includes at least two co-dopants and the concentration of at least one of said core dopant varies continuously over the entire core region. The optical fiber has, at a wavelength of 1550 nm, a spontaneous Brillouin spectrum width equal or larger to 100 MHz.The optical fiber of the invention achieves a much higher Brillouin threshold compared to standard transmission fibers with limited fiber loss, less than 0.3 dB/km at a wavelength of 1550 nm, and without change in the optical transmission parameters of the fiber.
REFERENCES:
patent: 5170457 (1992-12-01), Jen
patent: 5303318 (1994-04-01), Tateda et al.
patent: 6542683 (2003-04-01), Evans et al.
patent: 7228039 (2007-06-01), Bickham et al.
patent: 2001/0038740 (2001-11-01), Hasegawa et al.
patent: 2002/0118935 (2002-08-01), Balestra et al.
patent: 2004/0021882 (2004-02-01), Kakutani
patent: 2005/0013569 (2005-01-01), Dragic
patent: 2007/0189699 (2007-08-01), Matsuo et al.
patent: 0839770 (1998-05-01), None
patent: 52-88349 (1977-07-01), None
patent: 9-48629 (1997-02-01), None
patent: 09048629 (1997-02-01), None
patent: 52088349 (1997-07-01), None
patent: 9-218319 (1997-08-01), None
patent: 09218319 (1997-08-01), None
patent: 9-311231 (1997-12-01), None
patent: 09311231 (1997-12-01), None
patent: WO 99/04298 (1999-01-01), None
patent: WO 02/14920 (2002-02-01), None
patent: WO 2004/027941 (2004-04-01), None
Botineau, J., et al., “Effective stimulated Brillouin gain in singlemode optical fibres”, Electronics Letters, Nov. 9, 1995, vol. 31, No. 23.
Koyamada, Y., et al., “Simulating and Designing Brillouin Gain Spectrum in Single-Mode Fibers”, Journal of Lightwave Technology, Feb. 2004, vol. 22, No. 2.
Yu, J., et al., “Analysis of Brillouin Frequency Shift and Longitudinal Acoustic Wave in a Silica Optical Fiber With a Triple-Layered Structure”, Aug. 2003, vol. 21, No. 8.
Botineau J et al: “Effective stimulated Brillouin gain in singlemode optical fibres,” Electronics Letters, vol. 31, No. 23, (Nov. 9, 1995), pp. 2032-2034.
Koyamada Y et al: “Simulating and designing Brillouin gain spectrum in single-mode fiberS,” Journal of Lightwave Technology, vol. 22, No. 2, (Feb. 2004), pp. 631-639.
Jaewang Yu et al: “Analysis of Brillouin frequency shift and longitudinal acoustic wave in a silica optical fiber with a triple-layered structure,” Journald of Lightwave Technology, vol. 21, No. 8, (Aug. 2003), pp. 1779-1786.
Draka Comteq B.V.
Sughrue & Mion, PLLC
Wong Tina M
LandOfFree
Optical fiber with reduced stimulation Brillouin scattering 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 fiber with reduced stimulation Brillouin scattering, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical fiber with reduced stimulation Brillouin scattering will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4012967