Optical waveguides – Optical fiber waveguide with cladding – Utilizing multiple core or cladding
Reexamination Certificate
2007-06-19
2007-06-19
Healy, Brian (Department: 2883)
Optical waveguides
Optical fiber waveguide with cladding
Utilizing multiple core or cladding
C385S123000, C398S081000, C398S148000
Reexamination Certificate
active
11483979
ABSTRACT:
This invention relates to an optical fiber and others having a structure for efficiently generating SC light while realizing high nonlinearity over a wide band. The optical fiber has at least a center core region, and an outside cladding region having a refractive index lower than that of the center core region and provided on an outer periphery of the center core region. The optical fiber has, as characteristics to light of a wavelength λ1in a wavelength range of 1520 nm to 1620 nm, a chromatic dispersion of −2 ps
m/km to +2 ps
m/km, a dispersion slope of −0.009 ps
m2/km to +0.009 ps
m2/km, and a fourth-order dispersion of −1.8×10−4ps
m3/km to +1.8×10−4ps
m3/km.
REFERENCES:
patent: 6968108 (2005-11-01), Beaumont et al.
patent: 2002/0076186 (2002-06-01), de Montmorillon et al.
patent: 8-288930 (1996-11-01), None
patent: 10-228040 (1998-08-01), None
patent: 2004-287382 (2004-10-01), None
patent: 2005-331818 (2005-12-01), None
Jaedeuk Lee, et al., “Design and Fabrication of a Nonzero-Dispersion Fiber with a Maximally Flat Dispersion Spectrum,” IEEE Photonics Technology Letters, Apr. 2001, pp. 317-319, vol. 13, No. 4, IEEE.
Naomi Kumano, et al., “Zero Dispersion-Slope NZ-DSF with Ultra Wide Bandwidth over 300nm,” ECOC, 2002, PD1.4.
C.G. Jorgensen, et al., “Dispersion Flattened Highly Non-Linear Fiber,” ECOC-IDOC 2003 Proceedings, 2003, vol. 3, We3.7.6.
T.Okuno, et al., “Highly nonlinear and perfectly dispersion-flattened fibres for efficient optical signal processing applications,” Electronics Letters, Jun. 26, 2003, vol. 39, No. 13.
Paul S. Westbrook, et al., “Improved Supercontinuum Generation Through UV Processing of Highly Nonlinear Fibers,” Journal of Lightwave Technology, Jan. 2005, pp. 13-18, vol. 23, No. 1.
F. Poletti, et al., “Ultra-flattened dispersion holey fibers: genetic algorithm design and fabrication tolerances,” Conference on Lasers & Electro-Optics, 2005, CMV7, pp. 387-389, vol. 1.
K.P. Hansen, “Dispersion flattened hybrid-core nonlinear photonic crystal fiber,” Optics Express, Jun. 30, 2003, pp. 1503-1509, vol. 11, No. 13.
J.W. Nicholson, et al., “High power, single mode, all-fiber source of femtosecond pulses at 1550 nm and its use in supercontinuum generation,” Optics Express, Jun. 28, 2004, pp. 3025-3034, vol. 12, No. 13.
K. Saitoh, et al., “Chromatic dispersion control in photonic crystal fibers: application to ultra-flattened dispersion,” Optics Express, Apr. 21, 2003, pp. 843-852, vol. 11, No. 8.
Masaaki Hirano, et al., “Broadband Wavelength Conversion over 193-nm by HNL-DSF Improving Higher-order Dispersion Performance,” ECOC 2005 Proceedings, 2005, pp. 43-44, vol. 6, Paper Th 4.4.4.
Toshiaki Okuno, “Highly-nonlinear Optical Fibers and Their Applications,” SEI Technical Review, Jun. 2006, pp. 34-37, No. 62.
Search Report Issued in corresponding International Application No. PCT/JP2006/313700.
Masaaki Hirano, et al., “Ultra-Broadband Wavelength Conversion Demonstrated by Highly Nonlinear Fiber with improved β4,” 2006, p. 161.
Masaaki Hirano, et al., “Silica-based highly nonlinear fibers and their applications,” IEICE Technical Report, 2005 Conference of the Electronics Society, Institute of Electronics, Information and Communication Engineers, pp. 39-42.
Masaaki Hirano, et al., “Numerical Study for Highly Nonlinear Dispersion Flattened Fiber,” Sep. 7, 2005.
Hirano Masaaki
Nakanishi Tetsuya
Okuno Toshiaki
Healy Brian
McDermott Will & Emery LLP
Peng Charlie
Sumitomo Electric Industries Ltd.
LandOfFree
Optical fiber and optical device using the same 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 and optical device using the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical fiber and optical device using the same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3832605