Optical waveguides – With optical coupler – Particular coupling structure
Reexamination Certificate
2007-01-30
2007-01-30
Font, Frank G. (Department: 2883)
Optical waveguides
With optical coupler
Particular coupling structure
C385S027000, C385S032000, C385S095000, C398S182000
Reexamination Certificate
active
10735071
ABSTRACT:
An optical top-hat pulse generator comprising a polarization-maintaining fiber loop and controlled by solitons. A polarization-maintaining coupler launches a continuous wave optical signal into the fiber loop along a principal axis of the fiber loop. Another coupler launches a control pulse into the fiber loop along another orthogonal principal axis. The fiber loop may consist of a plurality of sections of polarization-maintaining fiber spliced together so that the principal axis of one section aligns with the orthogonal principal axis of an adjacent section and the length of each individual section is chosen to achieve equal in magnitude, but opposite in sign group delays between the continuous wave optical signal and the control pulse.
REFERENCES:
patent: 5208455 (1993-05-01), Nelson et al.
patent: 5717797 (1998-02-01), Evans
patent: 6424773 (2002-07-01), Watanabe
patent: 6462860 (2002-10-01), Ionov
patent: 6466703 (2002-10-01), Ionov
patent: 6901177 (2005-05-01), Ionov
patent: 0 521 671 (1993-01-01), None
patent: 01/95526 (2001-12-01), None
U.S. Appl. No. 10/701,378, filed Nov. 3, 2003, Ionov.
U.S. Appl. No. 10/973,696, filed Oct. 25, 2004, Ionov.
U.S. Appl. No. 11/033,571, filed Jan. 11, 2005, Ionov.
Black, H.S.,Modulation Theory, D. Van Nostrand Company, Inc., New York, pp. 283-298 (1953).
Diez, S., et al., “Gain-Transparent SOA-Switch for High-Bitrate OTDM Add/Drop Multiplexing,”IEEE Photonics Technology Letters, vol. 11, No. 1, pp. 60-62 (Jan. 1999).
Haus, H.A.,Waves and Fields in Optoelectronics, Prentice-Hall, Inc., Englewood Cliffs, New Jersey, pp. 216-220 (1984).
Petermann, K., “Basic Laser Characteristics,”Laser Diode Modulation and Noise, Kluwer Academic Publishers, Dordecht/Boston/London, Chapter 2, pp. 4-59 (1988).
Schubert, C., et al., “160-Gb/s All Optical Demultiplecxing Using a Gain-Transparent Ultrafast-Nonlinear Interferometer (GT-UNI),”IEEE Photonics Technology Letters, vol. 13, No. 5, pp. 475-477 (May 2001).
Schubert, C., et al., “Comparison of Interferometric All-Optical Switches for Demulitplexing Applications in High-Speed OTDM Systems,”Journal of Lightwave Technology, vol. 20, No. 4, pp. 618-624 (Apr. 2002).
U.S. Appl. No. 10/341,689, filed Jan. 13, 2003, Ionov.
Agraval, G.P., “Optical Solitons,”Nonlinear Fiber Optics, Chapter Five, Academic Press, New York, pp. 133-152 (1995).
Bigo, S., et al., “All-Optical Fiber Signal Processing and Regeneration for Soliton Communications,”IEEE Journal of Selected Topics in Quantum Electronics, vol. 3, No. 5, pp. 1208-1222 (Oct. 1997).
Wang, D., et al., “Nonlinear Optical Loop Mirror Based n Standard Communication Fiber,”Journal of Lightwave Technology, vol. 15, No. 4, pp. 642-646 (Apr. 1997).
Font Frank G.
HRL Laboratories LLC
Ladas & Parry LLP
Mooney Michael P.
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