Optical communications – Multiplex – Broadcast and distribution system
Reexamination Certificate
2007-04-24
2007-04-24
Vanderpuye, Kenneth (Department: 2613)
Optical communications
Multiplex
Broadcast and distribution system
C398S063000, C398S068000, C398S076000, C398S082000, C398S091000, C398S141000, C398S153000, C398S163000, C398S165000, C398S168000, C398S183000, C398S186000, C398S200000, C398S204000, C398S207000
Reexamination Certificate
active
09728373
ABSTRACT:
An optical communications system includes a receiver subsystem with at least two heterodyne receivers. The receiver subsystem receives a composite optical signal having two or more subbands of information and corresponding tones. An optical splitter splits the composite optical signal into optical signals. Each optical signal includes a subband(s) and corresponding tone. Each heterodyne receiver receives an optical signal. The receiver includes a heterodyne detector coupled to a signal extractor. The heterodyne detector mixes the optical signal with an optical local oscillator to produce an electrical signal which includes a frequency down-shifted version of the subband and the tone of the optical signal. The signal extractor mixes the frequency down-shifted subband with the frequency down-shifted tone to produce a frequency component containing the information.
REFERENCES:
patent: 2924706 (1960-02-01), Sassler
patent: 3680120 (1972-07-01), Benjamin
patent: 3752992 (1973-08-01), Fluhr
patent: 4061577 (1977-12-01), Bell
patent: 4701904 (1987-10-01), Darcie
patent: 4807227 (1989-02-01), Fujiwara et al.
patent: 4953156 (1990-08-01), Olshansky et al.
patent: 5140453 (1992-08-01), Tsushima et al.
patent: 5142402 (1992-08-01), Tsushima et al.
patent: 5162937 (1992-11-01), Heidemann et al.
patent: 5272556 (1993-12-01), Faulkner et al.
patent: 5305134 (1994-04-01), Tsushima et al.
patent: 5351148 (1994-09-01), Maeda et al.
patent: 5387927 (1995-02-01), Look et al.
patent: 5430568 (1995-07-01), Little et al.
patent: 5546190 (1996-08-01), Hill et al.
patent: 5559561 (1996-09-01), Wei
patent: 5576874 (1996-11-01), Czerwiec et al.
patent: 5589969 (1996-12-01), Taga et al.
patent: 5589970 (1996-12-01), Lyu et al.
patent: 5596436 (1997-01-01), Sargis et al.
patent: 5680238 (1997-10-01), Masuda
patent: 5724169 (1998-03-01), LaGasse
patent: 5896211 (1999-04-01), Watanabe
patent: 5930231 (1999-07-01), Miller et al.
patent: 5956166 (1999-09-01), Ogata et al.
patent: 6038357 (2000-03-01), Pan
patent: 6058227 (2000-05-01), Wong
patent: 6134033 (2000-10-01), Bergano et al.
patent: 6236480 (2001-05-01), Atlas
patent: 6342961 (2002-01-01), Bergano et al.
patent: 6459515 (2002-10-01), Bergano
patent: 6493131 (2002-12-01), Tarng et al.
patent: 6580535 (2003-06-01), Schonfelder
patent: 6735395 (2004-05-01), Bai
patent: 6766116 (2004-07-01), Webb
patent: 6904240 (2005-06-01), Suga et al.
patent: 2002/0076132 (2002-06-01), Peral et al.
patent: 0328156 (1989-08-01), None
patent: 0496298 (1992-07-01), None
patent: 0507508 (1992-10-01), None
patent: 0 717 521 (1996-06-01), None
patent: 0 756 393 (1997-01-01), None
patent: 2179517 (1987-03-01), None
patent: 2179817 (1987-03-01), None
patent: 07046187 (1995-02-01), None
Bachus, E.J. et al. “Coherent optical multicarrier systems.” Journal of Lightwave Technology. vol. 7, No. 2, Feb. 1989: 375-384.
Glance, B.S. et al. “WDM coherent optical star network.” Journal of Lightwave Technology. vol. 6, No. 1, Jan. 1988: 67-72.
Tsukamoto, K. et al. “Coherent fiber-optic microcellular radio communication system using RF-to-optic direct conversion scheme.” IEEE Global Telecommunications Conference, 1995. GLOBECOM '95. Nov. 13-17, 1995: 1987-1991 vol. 3.
Betts, G.E. et al. “Semiconductor laser sources for externally modulated microwave analog links.” IEEE Transactions on Microwave Theory and Techniques, vol. 45, No. 8. Aug. 1997: 1280-1287.
Ellis, R.B. and M.H. Capstick. “Feedback control of a linearised Mach-Zehnder modulator for SCM applications.” 1996., 2nd High Frequency Postgraduate Student Colloquium. Feb. 13, 1996: 33-38.
Corvaja, R. et al. “Accurate performance evaluation of weakly coherent optical systems.” Journal of Lightwave Technology, vol. 10, No. 11. Nov. 1992: 1665-1673.
Fan, J. et al. “Preamplfier ASK system performance with incomplete ASK modulation: influence of ASE and laser phase noise.” Journal of Lightwave Technology, vol. 13, No. 2. Feb. 1995: 302-311.
Foschini, G.J. et al. “Noncoherent detection of coherent lightwave signals corrupted by phase noise.” IEEE Transactions on Communications, vol. 36, No. 3. Mar. 1988: 306-314.
Garrett, I. et al. “Theoretical analysis of heterodyne optical receivers for transmission systems using (semiconductor) lasers with nonnegligible linewidth.” Journal of Lightwave Technology, vol. 4, No. 3. Mar. 1986: 323-334.
Jacobsen, G. et al. “The effect of crosstalk and phase noise in multichannel coherent optical ASK systems.” Journal of Lightwave Technology, vol. 9, No. 8. Aug. 1991: 1006-1018.
Tonguz, O.K. et al. “Performance of coherent ASK lightwave systems with finite intermediate frequency.” IEEE Transactions on Communications, vol. 45, No. 3. Mar. 1997: 344-351.
Hao. M.J. et al. “Performance evaluation of FSK and CPFSK optical communication systems: a stable and accurate method.” Journal of Lightwave Technology, vol. 13, No. 8, Aug. 1995: 1613-1623.
Kaminow. I.P. “Non-coherent photonic frequency-multiplexed access networks.” IEEE Network, vol. 3, No. 2, Mar. 1989: 4-12.
Kazovsky, L.G et al. “ASK and FSK coherent lightwave systems: a simplified approximate analysis.” Journal of Lightwave Technology, vol. 8, No. 3, Mar. 1990: 338-352.
Yamamoto, Y. “Receiver performance evaluation of various digital optical modulation-demodulation systems in the 0.5-10 μm wavelength region.” IEEE Journal of Quantum Electronics, vol. 16, No. 11, Nov. 1980: 1251-1259.
Sargis, Paul D., et al., “10-Gb/s Subcarrier Multiplexed Transmission Over 490 km of Ordinary Single-Mode Fiber Without Dispersion Compensation,” IEEE Photonics Technology Letters, vol. 9, No. 12, Dec. 1997, pp. 1658-1660.
Corvaja, Roberto, et al., “Bit Error Rate Evaulation of Dual-Filter Heterodyne FSK Optical System,” Journal of Optical Communications, Dec. 1, 1994, vol. 15, No. 6, Berlin, DE, pp. 208-213.
Fong, Thomas K., et al., “Linewidth-Insensitive Coherent AM Analog Optical Links Using Semiconductor Lasers,” IEEE Photonics Technology Letter, Apr. 1, 1993, vol. 5, No. 4, New York, pp. 469-471.
Campos, L.A. et al., “16-Gbit/s time- and polarization-division-multiplexed system using a novel compensation technique,”Optical Fiber Communication Conference Technical Digest Series(Washington, DC 1994), vol. 4, pp. 14-15.
Hill, P.M. et al., “Optical Polarization Division Multiplexing at 4 Gb/s,”IEEE Photonics Technology Letters(May 1992), vol. 4, No. 5, pp. 500-502.
Kawanishi, S. et al., “100 Gbit/s all-optical demultiplexing using four-wave mixing in a travelling wave laser diode amplifier,”Electronics Letters(Jun. 9, 1994), vol. 30, No. 12, pp. 981-982.
Invitation to Pay Additional Fees, Annex to Form PCT/ISA/206 Communication Relating to the Results of the Partial International Search, International Application No. PCT/US02/04582, Jun. 16, 2003, 6 pages.
Dai, H., C. Lin, M. Ramachandran, “Hybrid AM/QAM Video Trunking Lightwave Systems With Cascaded EDFAs”,Conf. Proc. LEOS, 97 Annual Meeting, IEEE Lasers&Electro Optic Society, 1997, vol. 1, pp. 319-320.
Hiramatsu, A. et al., “Hypermedia Photonic Information Network Based on WDM-SCM Broadcast and Select Switching,” Conference Proceedings, Leos '96 9thAnnual Meeting, IEEE Lasers and Electro-Optics Society 1996 Annual Meeting (Cat. No. 96CH35895), Boston, MA, Nov. 18-19, 1996, pp. 312-313.
Ho, K., H. Dai, C. Lin, “Hybrid WDM Digital Trunking System for both HFC and FTTC Access Networks”, Digest IEEE/LEOS 1996 Summer Topical Meetings (Cat. No. 96th8164), NY, NY, pp. 37-38.
Kanno, N., K. Ito, “Fiber Optic Subcarrier Multiplexing Transport for Broadband Subscriber Distribution Network”,IEEE Intl. Conference on Communications Boston ICC/89 World Prosperity Through Communications, Jun. 11-14, 1989, Boston, MA, vol. 2, pp. 996-1003.
Kavehrad, M., E. Savov, “Fiber-Optic T
Chang Peter H
Yee Ting K
Forster Energy LLC
Kim David S
Vanderpuye Kenneth
LandOfFree
Optical communications using heterodyne detection 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 communications using heterodyne detection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical communications using heterodyne detection will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3776464