Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate
2005-05-24
2005-05-24
Lee, John R. (Department: 2881)
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
C250S227110, C250S227140, C250S227170, C250S227190, C250S227230, C250S227270, C250S227280, C385S122000, C359S326000, C359S330000, C359S332000, C359S341100, C359S341200, C359S341300, C359S341310, C359S349000, C359S350000, C359S351000, C359S352000, C359S490020, C359S490020, C359S490020, C359S506000, C359S506000, C372S020000, C372S021000
Reexamination Certificate
active
06897434
ABSTRACT:
A source and/or method of generating quantum-correlated and/or entangled photon pairs using parametric fluorescence in a fiber Sagnac loop. The photon pairs are generated in the 1550 nm fiber-optic communication band and detected by a detection system including InGaAs/InP avalanche photodiodes operating in a gated Geiger mode. A generation rate>103pairs/s is observed, a rate limited only by available detection electronics. The nonclassical nature of the photon correlations in the pairs is demonstrated. This source, given its spectral properties and robustness, is well suited for use in fiber-optic quantum communication and cryptography networks. The detection system also provides high rate of photon counting with negligible after pulsing and associated high quantum efficiency and also low dark count rate.
REFERENCES:
patent: 4001614 (1977-01-01), Dahlinger
patent: 5768297 (1998-06-01), Shor
patent: 5929982 (1999-07-01), Anderson
patent: 6057541 (2000-05-01), Steenblik
patent: 6424665 (2002-07-01), Kwiat et al.
patent: 6430345 (2002-08-01), Dultz et al.
patent: 6444999 (2002-09-01), Tomita
patent: 6473719 (2002-10-01), Steenblik
patent: 6501591 (2002-12-01), Kumar et al.
patent: 6522749 (2003-02-01), Wang
patent: 6646727 (2003-11-01), Saleh et al.
patent: 20020030180 (2002-03-01), Tomita
patent: 20020106084 (2002-08-01), Azuma et al.
patent: 20020190249 (2002-12-01), Williams et al.
patent: 20020191176 (2002-12-01), Saleh et al.
patent: 20030055513 (2003-03-01), Raussendorf et al.
patent: 20030067011 (2003-04-01), Ando et al.
patent: 20030086138 (2003-05-01), Pittman et al.
Kumar et al., “Fiber-Optic Sources of Quantum Entanglement”, http://arxiv.org/abs/quant-ph/0209112.*
Tomita, “Complete Bell state measurement with controlled photon absorption and quantum interference”, http://arxiv.org/abs/quant-ph/0006093 v1.*
Resch et al., “Practical creation and detection of polarization Bell states using parametric down-coversion”, http://arxiv.org/abs/quant-ph/0204034 v2.*
Dehaene et al., “Local Permutations of products of Bell States and Entanglement Distillation”, http://arxiv.org/abs/quant-ph/0207154 v1.*
Bartlett, Stephen, “Entanglement and Quantum Teleportation”, Lecture 2 on Quantum Computing, NITP Summer School 2003, Adelaide. Australia, Jan. 28-31, 2003.*
Lamas-Linares et al., “Stimulated emission of polarization-entangled photons”, Letters to Nature, Nature 412 (2001) 887-890.*
Wegner, Daniel, “Sagnac-Effekt”, http://www.physik.fu-berlin.de/˜wgnerd/diplomarbeit-www
ode25.html.*
Ribordy et al., “Performance of InGaAs/InP avalanche photodiodes as gated-mode photon counters”, Applied Optics 37/37/12 (1998) 2272-2277.*
Bthune et al., “An Autocompensating Fiber-Optic Quantum Cryptography System Based on Polarization Splitting of Light”, IEEE J. Quant. Electronics 36/3 (2000) 340-347.*
Namekata et al., “Single-photon detector for long-distance fiber-optic quantum key distribution”, Opt. Lett. 27/11 (2002) 954-956.*
Tomita et al., “Balanced, gated-mode photon detector for quantum-bit discrimination at 1550 nm”, Opt. Lett. 27/20 (2002) 1827-1829.*
Tanzilli et al., “Highly efficient photon-pair source using periodically poled lithium niobate waveguide”, Electron. Lett. 37/1 (2001) 26-28.*
Bonfrate et al., “Parametric fluorescence in periodically poled silica fibers”, Appl. Phys. Lett. 75/16 (1999) 2356-2358.*
Ou et al., “Evidence of phase memory in two-photon down conversion through entanglement with the vacuum”, Phys. Rev. A 41/1 (1990) 566-568.*
Kwiat et al., “Ultrabright source of polarization-entangled photons”, Phys. Rev. A 60/2 (1999) R773R776.*
Clauser et al., “Proposed experiment to test local hidden-variable theories”, Phys. Rev. Lett. 23/15 (1969) 880-884.*
Xiang et al., “Wavelength Shift Keying Technique to Reduce Four-Wave Mixing Crosstalk in WDM”, 1999 IEEE Lasers & Electro-Optics Society Annual Meeting Proceedings, Paper WZ2, pp. 609-610, San Francisco, CA, Nov. 1999.*
Hedekvist, P.O. “Optical Phase Conjugation and All-Optical Demultiplexing using Four-Wave Mixing in Dispersion Shifted Fibers”, http://www2.lib.chalmers.se/cth/doc/9798/HedekvistPerOlof.html.*
C.E. Kuklewicz F. Kesklner, F.N.C. Wong, .I H. Strapiro,A high for entanglement source based on a doubly resonant optical parametric amplifier, J Opt H-Quantum G O 4(3): Mar. 2002, pp. 162-168.
I. J. Wang, C.K. Hong, S. R.Generation of correlated photons via four wave mixing in optical fiber. J Opt B-Quantum G O (3): Mar. 2001, pp. 346-362.
Florentino Marco
Kumar Prem
Sharping Jay E.
Voss Paul L.
Lee John R.
Northwestern University
Reinhart Boerner Van Deuren s.c.
Souw Bernard
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