Optical waveguides – With optical coupler – Particular coupling function
Reexamination Certificate
2007-10-30
2007-10-30
Healy, Brian M. (Department: 2883)
Optical waveguides
With optical coupler
Particular coupling function
C385S043000, C385S014000, C385S049000, C385S123000, C385S129000, C398S028000, C398S144000, C398S143000
Reexamination Certificate
active
11524857
ABSTRACT:
A multimode fiber system includes a transmitter for transmitting an optical signal and a receiver that receives the optical signal. At least one mode filter is coupled between the receiver and the transmitter and passes only a specific set of fiber modes from the transmitter to be received by the receiver. The at least one mode filter comprises a tapered core section that includes a double taper configuration joined at the narrowest regions and in which each end of the two tapers has dimensions compatible with the fiber at that end.
REFERENCES:
patent: 4176911 (1979-12-01), Marcatili et al.
patent: 4877300 (1989-10-01), Newhouse et al.
patent: 5416862 (1995-05-01), Haas et al.
patent: 5717798 (1998-02-01), Strasser et al.
patent: 5761364 (1998-06-01), Knapp et al.
patent: 6008675 (1999-12-01), Handa
patent: 6377726 (2002-04-01), Danziger et al.
patent: 6477301 (2002-11-01), Anthon et al.
patent: 6516120 (2003-02-01), Roberts et al.
patent: 6819849 (2004-11-01), Tangonan et al.
patent: 7016573 (2006-03-01), Dong et al.
patent: 7184623 (2007-02-01), Cai et al.
patent: 7194156 (2007-03-01), Deliwala
patent: 7215846 (2007-05-01), Deliwala
patent: 2002/0031304 (2002-03-01), Roberts et al.
patent: 2003/0133661 (2003-07-01), Adibi et al.
patent: 1041409 (2000-10-01), None
patent: 1245973 (2002-10-01), None
patent: 1460785 (2004-09-01), None
patent: 2000/41016 (2000-07-01), None
patent: 2002/27371 (2002-04-01), None
“Modal Noise in Multimode Fibers Under Restricted Launch Conditions,” Papen et al.,J. of Lightwave Technology, vol. 17, n. 5 (May 1999).
“Reduction of Modal Noise by Using Reduced Spot Excitation,” Saijonmaa et al.,Applied Optics, vol. 20, n. 24 (Dec. 15, 1981).
“An Experimental and Theoretical Study of the Offset Launch Technique for the Enhancement of the Bandwidth of Multimode Fiber Links,” Raddatz et al.,J. of Lightwave Technology, vol. 16, n. 3 (Mar. 1998).
“Enhanced Multimode Fiber Link Performance Using a Spatialy Resolved Receiver,” Patel et al.,IEEE Photonics Technology Letters, vol. 14, n. 3 (Mar. 2002).
“Exploiting Diversity in Multimode Fiber Communications Links Via Multisegment Detectors and Equalization,” Argon et al.,IEEE Communications Letters, vol. 7, n. 8 (Aug. 2003).
“Light Coupling by a Vortex Lens into Graded Index Fiber,” Johnson et al.,J. of Lightwave Technology, vol. 19, n. 5 (May 2001).
“Selective Excitation of Parabolic-Index Optical Fibers by Gaussian Beams,” Saijonmaa et al.,Applied Optics, vol. 19, n. 14 (Jul. 15, 1980).
“A Mode-Filtering Scheme for Improvement of the Bandwidth-Distance Product in Multimode Fiber Systems,” Haas et al.,J. of Lightwave Technology, vol. 11, n. 7 (Jul. 1997).
“Dispersive Multiplexing in Multimode Fiber,” H.R. Stuart,Th V2-1/30, no date.
“Differential Mode Loss and Mode Conversion in Passive Fiber Components Measured Using the Chromatic Launching and the Central Spot Far Field Techniques,” Severin et al.,J. of Lightwave Technologyvol. LT-4, n. 11 (Nov. 1986).
“A Statistical Analysis of Conditioned Launch for Gigabit Ethernet Links Using Multimode Fiber,” Webster et al.,J. of Lighwave Technology, vol. 17, n. 9 (Sep. 1999).
Analog Devices Inc.
Gauthier & Connors LLP
Healy Brian M.
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