Optical waveguides – Optical fiber waveguide with cladding
Reexamination Certificate
2006-07-11
2006-07-11
Ullah, Akm Enayet (Department: 2874)
Optical waveguides
Optical fiber waveguide with cladding
C385S126000
Reexamination Certificate
active
07076140
ABSTRACT:
The present invention relates to an optical fiber or the like which allows more precise compensation for the chromatic dispersion of a transmission optical fiber over a broad wavelength band. The optical fiber has a chromatic dispersion of −100 ps
m/km or less in a wavelength band of 1535 to 1565 nm, 1565 to 1610 nm, 1554 to 1608 nm or 1535 to 1610 nm. In particular, the chromatic dispersion profile of the fundamental mode of this optical fiber defined by the orthogonal coordinate system of the wavelength and chromatic dispersion value has a shape such that, over the entire wavelength band except for the shortest and longest wavelengths thereof, the chromatic dispersion values on the chromatic dispersion profile are respectively located on the minus side of the associated chromatic dispersion values on a straight line connecting the chromatic dispersion values at the shortest and longest wavelength. Since the chromatic dispersion profile of the transmission optical fiber such as a conventional single-mode fiber or the like has a shape opposite to that of this optical fiber, the chromatic dispersion of the transmission optical fiber can be compensated for more precisely by using this optical fiber as a dispersion compensating optical fiber.
REFERENCES:
patent: 6393188 (2002-05-01), Jeong et al.
patent: 6519402 (2003-02-01), Aikawa et al.
patent: 2001/0019651 (2001-09-01), Kato
patent: 2002/0097969 (2002-07-01), Aikawa et al.
patent: 2004/0146258 (2004-07-01), Yamamoto et al.
NFOCEC, National Fiber Optic Engineers Conference, “Technical Proceedings” Hosted by: Telcordia Technologies, 18th Annual Conference, ©2002, Title page—pp. 1171-1182.
COC 2002, 28th European Conference on Optical Communication, “PROCEEDINGS” Sep. 11, 2002, Title page, 2 pgs.
Hirano et al., Dispersion Compensating Fiber Over 140 nm-Bandwidth, Proc. 27the Eur. Conf. on Opt. Comm. (ECOC'01-Amsterdam), pp. 494-495.
Hirano et al., “Novel Dispersion Flattened Link Consisting of New NZ-DSF and Dispersion Compensating Fiber Module”, pp. 99-100.
OFC® 2002 “Optical Fiber Communication Conference and Exhibit”, Technical Digest, Mar. 17-22, 2002, 2 Title pgs, pp. 327-329.
OFC '96 Technical Digest, “ThA” Dispersion Compensation, pp. 200-201.
Fujii Takashi
Kato Takatoshi
Sasaoka Eisuke
Yamamoto Yoshinori
McDermott Will & Emery LLP
Sumitomo Electric Industries Ltd.
Ullah Akm Enayet
LandOfFree
Optical fiber, dispersion compensator, optical transmission... 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, dispersion compensator, optical transmission..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical fiber, dispersion compensator, optical transmission... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3564684