Abstract

We report the first entanglement swapping experiment using entangled photon-pair sources based on spontaneous four-wave mixing (SFWM). The 1.5-µm band entangled photon pairs generated by SFWM in two independent 500-m dispersion shifted fibers exhibited quantum interference, thanks to the negligible walk-off between the pump and photon pairs. The use of 500-MHz gated-mode InGaAs/InP avalanche photodiodes based on the sine-wave gating technique increased the fourfold coincidence rate. As a result, the formation of an entanglement between photons from independent sources was successfully observed.

© 2009 Optical Society of America

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    [CrossRef]
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    [CrossRef] [PubMed]
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    [CrossRef] [PubMed]
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    [CrossRef]

2009 (1)

2008 (4)

S. D. Dyer,M. J. Stevens, B. Baek, and S.W. Nam,"High-efficiency, ultra low-noise all-fiber photon-pair source," Opt. Express 16, 9966-9977 (2008).
[CrossRef] [PubMed]

A. Politi, M. J. Cryan, J. G. Rarity, S. Yu, and J. L. O’Brien, "Silica-on-silicon waveguide quantum circuits," Science 320, 646-649 (2008).
[CrossRef] [PubMed]

Z. S. Yuan, Y. A. Chen, B. Zhao, S. Chen, J. Schmiedmayer, and J. W. Pan, "Experimental demonstration of a BDCZ quantum repeater node," Nature 454, 1098-1101 (2008).
[CrossRef] [PubMed]

H. de Riedmatten, M. Afzelius, M. U. Staudt, C. Simon, and N. Gisin, "A solid-state light-matter interface at the single-photon level," Nature 456, 773-777 (2008).
[CrossRef] [PubMed]

2007 (6)

M. Halder, A. Beveratos, N. Gisin, V. Scarani, C. Simon, and H. Zbinden, "Entangling independent photons by time measurement," Nat. Physics 3, 692-695 (2007).
[CrossRef]

N. Gisin and R. Thew, "Quantum communication," Nat. Photonics 1, 165-171 (2007).
[CrossRef]

H. Takesue, S. W. Nam, Q. Zhang, R. H. Hadfield, T. Honjo, K. Tamaki, and Y. Yamamoto, "Quantum key distribution over 40 dB channel loss using superconducting single-photon detectors," Nat. Photonics 1, 343-348 (2007).
[CrossRef]

H. Takesue, Y. Tokura, H. Fukuda, T. Tsuchizawa, T. Watanabe, K. Yamada, and S. Itabashi, "Entanglement generation using silicon wire waveguide," Appl. Phys. Lett. 91, 201108 (2007).
[CrossRef]

J. Fulconis, Q. Alibart, W. J. Wadsworth, and J. G. Rarity, "Quantum interference with photon pairs using two micro-structured fibres," New J. Phys. 9, 276 (2007).
[CrossRef]

H. Takesue, "1.5-μm band Hong-Ou-Mandel experiment using photon pairs generated in two independent dispersion shifted fibers," Appl. Phys. Lett. 90, 204101 (2007).
[CrossRef]

2006 (2)

N. Namekata, S. Sasamori, and S. Inoue, "800 MHz single-photon detection at 1550-nm using an InGaAs/InP avalanche photodiode operated with a sine wave gating," Opt. Express 14, 10043-10049 (2006).
[CrossRef] [PubMed]

T. Yang, Q. Zhang, T. Y. Chen, S. Lu, J. Yin, J. W. Pan, Z. Y. Wei, J. R. Tian, and J. Zhang, "Experimental Synchronization of Independent Entangled Photon Sources," Phys. Rev. Lett. 96, 110501 (2006).
[CrossRef] [PubMed]

2005 (4)

2004 (1)

H. de Riedmatten, V. Scarani, I. Marcikic, A. Acin,W. Tittel, H. Zbinden, and N. Gisin, "Two independent photon pairs versus four-photon entangled states in parametric down conversion," J. Mod. Opt. 51, 1637-1649 (2004).

2003 (1)

A. Yoshizawa, R. Kaji, and H. Tsuchida, "Generation of polarization-entangled photon pairs at 1550 nm using two PPLN waveguides," Electron. Lett. 39, 621-622 (2003).
[CrossRef]

2002 (4)

S. Tanzilli, W. Tittel, H. de Riedmatten, H. Zbinden, P. Baldi, M. DeMicheli, D. B. Ostrowsky, and N. Gisin, "PPLN waveguide for quantum communication, " Eur. Phys. J. D 18, 155-160 (2002).

M. Fiorentino, P. L. Voss, J. E. Sharping, and P. Kumar, "All-fiber photon-pair source for quantum communications," IEEE Photon. Technol. Lett. 14, 983-985 (2002).
[CrossRef]

T. Jennewein, G. Weihs, J. W. Pan, and A. Zeilinger, "Experimental nonlocality proof of quantum teleportation and entanglement swapping," Phys. Rev. Lett. 88, 017903 (2002).
[CrossRef] [PubMed]

E. Waks, A. Zeevi, and Y. Yamamoto, "Security of quantum key distribution with entangled photons against individual attacks," Phys. Rev. A 65, 052310 (2002).
[CrossRef]

1999 (2)

P. G. Kwiat, E. Waks, A. G. White, I. Appelbaum, and P. H. Eberhard, "Ultrabright source of polarizationentangled photons," Phys. Rev. A 60, R773-R776 (1999).
[CrossRef]

J. Brendel, N. Gisin, W. Tittel, and H. Zbinden, "Pulsed energy-time entangled twin-photon source for quantum communication," Phys. Rev. Lett. 82, 2594-2597 (1999).
[CrossRef]

1998 (4)

P. R. Tapster and J. G. Rarity, "Photon statistics of pulsed parametric light," J. Mod. Opt. 45, 595-604 (1998).
[CrossRef]

G. Ribordy, J-D. Gautier, H. Zbinden, and N. Gisin, "Performance of InGaAs/InP avalanche photodiodes as gated-mode photon counters," Appl. Opt. 37, 2272-2277 (1998).
[CrossRef]

H. J. Briegel, W. Dur, J. I. Cirac, and P. Zoller, "Quantum repeaters: the role of imperfect local operation in quantum communication," Phys. Rev. Lett. 81, 5932-5935 (1998).
[CrossRef]

J. W. Pan, D. Bouwmeester, H. Weinfurter, and A. Zeilinger, "Experimental entanglement swapping: entangling photons that never interacted," Phys. Rev. Lett. 80, 3891-3894 (1998).
[CrossRef]

1995 (1)

P. G. Kwiat, K. Mattle, H. Weinfurter, A. Zeilinger, A. V. Sergienko, and Y. Shih, "New high-intensity source of polarization-entangled photon pairs." Phys. Rev. Lett. 75, 4337-4341 (1995).
[CrossRef] [PubMed]

1993 (1)

M. Suzuki, H. Tanaka, N. Edagawa, K. Utaka, and Y. Matsushima, "Transform-limited optical pulse generation up to 20-GHz repetition rate by a sinusoidally driven InGaAsP electroabsorption modulator," J. Lightwave Technol. 11, 468-473 (1993).
[CrossRef]

1987 (1)

C. K. Hong, Z. Y. Ou, and L. Mandel, "Measurement of subpicosecond time intervals between two photons by interference" Phys. Rev. Lett. 59, 2044-2046 (1987).
[CrossRef] [PubMed]

1956 (1)

R. Hanbury Brown and R. Q. Twiss, "Correlation between photons in two coherent beams of light," Nature 177, 27-29 (1956).
[CrossRef]

Acin, A.

H. de Riedmatten, V. Scarani, I. Marcikic, A. Acin,W. Tittel, H. Zbinden, and N. Gisin, "Two independent photon pairs versus four-photon entangled states in parametric down conversion," J. Mod. Opt. 51, 1637-1649 (2004).

Adachi, S.

Afzelius, M.

H. de Riedmatten, M. Afzelius, M. U. Staudt, C. Simon, and N. Gisin, "A solid-state light-matter interface at the single-photon level," Nature 456, 773-777 (2008).
[CrossRef] [PubMed]

Alibart, Q.

J. Fulconis, Q. Alibart, W. J. Wadsworth, and J. G. Rarity, "Quantum interference with photon pairs using two micro-structured fibres," New J. Phys. 9, 276 (2007).
[CrossRef]

Appelbaum, I.

P. G. Kwiat, E. Waks, A. G. White, I. Appelbaum, and P. H. Eberhard, "Ultrabright source of polarizationentangled photons," Phys. Rev. A 60, R773-R776 (1999).
[CrossRef]

Asobe, M.

Baek, B.

Baldi, P.

S. Tanzilli, W. Tittel, H. de Riedmatten, H. Zbinden, P. Baldi, M. DeMicheli, D. B. Ostrowsky, and N. Gisin, "PPLN waveguide for quantum communication, " Eur. Phys. J. D 18, 155-160 (2002).

Beveratos, A.

M. Halder, A. Beveratos, N. Gisin, V. Scarani, C. Simon, and H. Zbinden, "Entangling independent photons by time measurement," Nat. Physics 3, 692-695 (2007).
[CrossRef]

Bouwmeester, D.

J. W. Pan, D. Bouwmeester, H. Weinfurter, and A. Zeilinger, "Experimental entanglement swapping: entangling photons that never interacted," Phys. Rev. Lett. 80, 3891-3894 (1998).
[CrossRef]

Brendel, J.

J. Brendel, N. Gisin, W. Tittel, and H. Zbinden, "Pulsed energy-time entangled twin-photon source for quantum communication," Phys. Rev. Lett. 82, 2594-2597 (1999).
[CrossRef]

Briegel, H. J.

H. J. Briegel, W. Dur, J. I. Cirac, and P. Zoller, "Quantum repeaters: the role of imperfect local operation in quantum communication," Phys. Rev. Lett. 81, 5932-5935 (1998).
[CrossRef]

Chen, S.

Z. S. Yuan, Y. A. Chen, B. Zhao, S. Chen, J. Schmiedmayer, and J. W. Pan, "Experimental demonstration of a BDCZ quantum repeater node," Nature 454, 1098-1101 (2008).
[CrossRef] [PubMed]

Chen, T. Y.

T. Yang, Q. Zhang, T. Y. Chen, S. Lu, J. Yin, J. W. Pan, Z. Y. Wei, J. R. Tian, and J. Zhang, "Experimental Synchronization of Independent Entangled Photon Sources," Phys. Rev. Lett. 96, 110501 (2006).
[CrossRef] [PubMed]

Chen, Y. A.

Z. S. Yuan, Y. A. Chen, B. Zhao, S. Chen, J. Schmiedmayer, and J. W. Pan, "Experimental demonstration of a BDCZ quantum repeater node," Nature 454, 1098-1101 (2008).
[CrossRef] [PubMed]

Cirac, J. I.

H. J. Briegel, W. Dur, J. I. Cirac, and P. Zoller, "Quantum repeaters: the role of imperfect local operation in quantum communication," Phys. Rev. Lett. 81, 5932-5935 (1998).
[CrossRef]

Collins, D.

D. Collins, N. Gisin, and H. de Riedmatten, "Quantum relays for long distance quantum cryptography," J. Mod. Opt. 52, 735-753 (2005).
[CrossRef]

Cryan, M. J.

A. Politi, M. J. Cryan, J. G. Rarity, S. Yu, and J. L. O’Brien, "Silica-on-silicon waveguide quantum circuits," Science 320, 646-649 (2008).
[CrossRef] [PubMed]

de Riedmatten, H.

H. de Riedmatten, M. Afzelius, M. U. Staudt, C. Simon, and N. Gisin, "A solid-state light-matter interface at the single-photon level," Nature 456, 773-777 (2008).
[CrossRef] [PubMed]

D. Collins, N. Gisin, and H. de Riedmatten, "Quantum relays for long distance quantum cryptography," J. Mod. Opt. 52, 735-753 (2005).
[CrossRef]

H. de Riedmatten, V. Scarani, I. Marcikic, A. Acin,W. Tittel, H. Zbinden, and N. Gisin, "Two independent photon pairs versus four-photon entangled states in parametric down conversion," J. Mod. Opt. 51, 1637-1649 (2004).

S. Tanzilli, W. Tittel, H. de Riedmatten, H. Zbinden, P. Baldi, M. DeMicheli, D. B. Ostrowsky, and N. Gisin, "PPLN waveguide for quantum communication, " Eur. Phys. J. D 18, 155-160 (2002).

DeMicheli, M.

S. Tanzilli, W. Tittel, H. de Riedmatten, H. Zbinden, P. Baldi, M. DeMicheli, D. B. Ostrowsky, and N. Gisin, "PPLN waveguide for quantum communication, " Eur. Phys. J. D 18, 155-160 (2002).

Dur, W.

H. J. Briegel, W. Dur, J. I. Cirac, and P. Zoller, "Quantum repeaters: the role of imperfect local operation in quantum communication," Phys. Rev. Lett. 81, 5932-5935 (1998).
[CrossRef]

Dyer, S. D.

Eberhard, P. H.

P. G. Kwiat, E. Waks, A. G. White, I. Appelbaum, and P. H. Eberhard, "Ultrabright source of polarizationentangled photons," Phys. Rev. A 60, R773-R776 (1999).
[CrossRef]

Edagawa, N.

M. Suzuki, H. Tanaka, N. Edagawa, K. Utaka, and Y. Matsushima, "Transform-limited optical pulse generation up to 20-GHz repetition rate by a sinusoidally driven InGaAsP electroabsorption modulator," J. Lightwave Technol. 11, 468-473 (1993).
[CrossRef]

Fiorentino, M.

M. Fiorentino, P. L. Voss, J. E. Sharping, and P. Kumar, "All-fiber photon-pair source for quantum communications," IEEE Photon. Technol. Lett. 14, 983-985 (2002).
[CrossRef]

Fukuda, H.

H. Takesue, Y. Tokura, H. Fukuda, T. Tsuchizawa, T. Watanabe, K. Yamada, and S. Itabashi, "Entanglement generation using silicon wire waveguide," Appl. Phys. Lett. 91, 201108 (2007).
[CrossRef]

Fulconis, J.

J. Fulconis, Q. Alibart, W. J. Wadsworth, and J. G. Rarity, "Quantum interference with photon pairs using two micro-structured fibres," New J. Phys. 9, 276 (2007).
[CrossRef]

Gautier, J-D.

Gisin, N.

H. de Riedmatten, M. Afzelius, M. U. Staudt, C. Simon, and N. Gisin, "A solid-state light-matter interface at the single-photon level," Nature 456, 773-777 (2008).
[CrossRef] [PubMed]

N. Gisin and R. Thew, "Quantum communication," Nat. Photonics 1, 165-171 (2007).
[CrossRef]

M. Halder, A. Beveratos, N. Gisin, V. Scarani, C. Simon, and H. Zbinden, "Entangling independent photons by time measurement," Nat. Physics 3, 692-695 (2007).
[CrossRef]

D. Collins, N. Gisin, and H. de Riedmatten, "Quantum relays for long distance quantum cryptography," J. Mod. Opt. 52, 735-753 (2005).
[CrossRef]

H. de Riedmatten, V. Scarani, I. Marcikic, A. Acin,W. Tittel, H. Zbinden, and N. Gisin, "Two independent photon pairs versus four-photon entangled states in parametric down conversion," J. Mod. Opt. 51, 1637-1649 (2004).

S. Tanzilli, W. Tittel, H. de Riedmatten, H. Zbinden, P. Baldi, M. DeMicheli, D. B. Ostrowsky, and N. Gisin, "PPLN waveguide for quantum communication, " Eur. Phys. J. D 18, 155-160 (2002).

J. Brendel, N. Gisin, W. Tittel, and H. Zbinden, "Pulsed energy-time entangled twin-photon source for quantum communication," Phys. Rev. Lett. 82, 2594-2597 (1999).
[CrossRef]

G. Ribordy, J-D. Gautier, H. Zbinden, and N. Gisin, "Performance of InGaAs/InP avalanche photodiodes as gated-mode photon counters," Appl. Opt. 37, 2272-2277 (1998).
[CrossRef]

Hadfield, R. H.

H. Takesue, S. W. Nam, Q. Zhang, R. H. Hadfield, T. Honjo, K. Tamaki, and Y. Yamamoto, "Quantum key distribution over 40 dB channel loss using superconducting single-photon detectors," Nat. Photonics 1, 343-348 (2007).
[CrossRef]

Halder, M.

M. Halder, A. Beveratos, N. Gisin, V. Scarani, C. Simon, and H. Zbinden, "Entangling independent photons by time measurement," Nat. Physics 3, 692-695 (2007).
[CrossRef]

Hanbury Brown, R.

R. Hanbury Brown and R. Q. Twiss, "Correlation between photons in two coherent beams of light," Nature 177, 27-29 (1956).
[CrossRef]

Hong, C. K.

C. K. Hong, Z. Y. Ou, and L. Mandel, "Measurement of subpicosecond time intervals between two photons by interference" Phys. Rev. Lett. 59, 2044-2046 (1987).
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X. Li, P. L. Voss, J. E. Sharping, and P. Kumar, "Optical fiber-source of polarization-entangled photons in the 1550 nm telecom band," Phys. Rev. Lett. 94, 053601 (2005).
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P. G. Kwiat, E. Waks, A. G. White, I. Appelbaum, and P. H. Eberhard, "Ultrabright source of polarizationentangled photons," Phys. Rev. A 60, R773-R776 (1999).
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X. Li, P. L. Voss, J. E. Sharping, and P. Kumar, "Optical fiber-source of polarization-entangled photons in the 1550 nm telecom band," Phys. Rev. Lett. 94, 053601 (2005).
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M. Suzuki, H. Tanaka, N. Edagawa, K. Utaka, and Y. Matsushima, "Transform-limited optical pulse generation up to 20-GHz repetition rate by a sinusoidally driven InGaAsP electroabsorption modulator," J. Lightwave Technol. 11, 468-473 (1993).
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P. G. Kwiat, K. Mattle, H. Weinfurter, A. Zeilinger, A. V. Sergienko, and Y. Shih, "New high-intensity source of polarization-entangled photon pairs." Phys. Rev. Lett. 75, 4337-4341 (1995).
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H. Takesue, S. W. Nam, Q. Zhang, R. H. Hadfield, T. Honjo, K. Tamaki, and Y. Yamamoto, "Quantum key distribution over 40 dB channel loss using superconducting single-photon detectors," Nat. Photonics 1, 343-348 (2007).
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S. Tanzilli, W. Tittel, H. de Riedmatten, H. Zbinden, P. Baldi, M. DeMicheli, D. B. Ostrowsky, and N. Gisin, "PPLN waveguide for quantum communication, " Eur. Phys. J. D 18, 155-160 (2002).

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Z. S. Yuan, Y. A. Chen, B. Zhao, S. Chen, J. Schmiedmayer, and J. W. Pan, "Experimental demonstration of a BDCZ quantum repeater node," Nature 454, 1098-1101 (2008).
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A. Politi, M. J. Cryan, J. G. Rarity, S. Yu, and J. L. O’Brien, "Silica-on-silicon waveguide quantum circuits," Science 320, 646-649 (2008).
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M. Halder, A. Beveratos, N. Gisin, V. Scarani, C. Simon, and H. Zbinden, "Entangling independent photons by time measurement," Nat. Physics 3, 692-695 (2007).
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Z. S. Yuan, Y. A. Chen, B. Zhao, S. Chen, J. Schmiedmayer, and J. W. Pan, "Experimental demonstration of a BDCZ quantum repeater node," Nature 454, 1098-1101 (2008).
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P. G. Kwiat, K. Mattle, H. Weinfurter, A. Zeilinger, A. V. Sergienko, and Y. Shih, "New high-intensity source of polarization-entangled photon pairs." Phys. Rev. Lett. 75, 4337-4341 (1995).
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X. Li, P. L. Voss, J. E. Sharping, and P. Kumar, "Optical fiber-source of polarization-entangled photons in the 1550 nm telecom band," Phys. Rev. Lett. 94, 053601 (2005).
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P. G. Kwiat, K. Mattle, H. Weinfurter, A. Zeilinger, A. V. Sergienko, and Y. Shih, "New high-intensity source of polarization-entangled photon pairs." Phys. Rev. Lett. 75, 4337-4341 (1995).
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H. Takesue, S. W. Nam, Q. Zhang, R. H. Hadfield, T. Honjo, K. Tamaki, and Y. Yamamoto, "Quantum key distribution over 40 dB channel loss using superconducting single-photon detectors," Nat. Photonics 1, 343-348 (2007).
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H. Takesue, S. W. Nam, Q. Zhang, R. H. Hadfield, T. Honjo, K. Tamaki, and Y. Yamamoto, "Quantum key distribution over 40 dB channel loss using superconducting single-photon detectors," Nat. Photonics 1, 343-348 (2007).
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M. Suzuki, H. Tanaka, N. Edagawa, K. Utaka, and Y. Matsushima, "Transform-limited optical pulse generation up to 20-GHz repetition rate by a sinusoidally driven InGaAsP electroabsorption modulator," J. Lightwave Technol. 11, 468-473 (1993).
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S. Tanzilli, W. Tittel, H. de Riedmatten, H. Zbinden, P. Baldi, M. DeMicheli, D. B. Ostrowsky, and N. Gisin, "PPLN waveguide for quantum communication, " Eur. Phys. J. D 18, 155-160 (2002).

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H. de Riedmatten, V. Scarani, I. Marcikic, A. Acin,W. Tittel, H. Zbinden, and N. Gisin, "Two independent photon pairs versus four-photon entangled states in parametric down conversion," J. Mod. Opt. 51, 1637-1649 (2004).

S. Tanzilli, W. Tittel, H. de Riedmatten, H. Zbinden, P. Baldi, M. DeMicheli, D. B. Ostrowsky, and N. Gisin, "PPLN waveguide for quantum communication, " Eur. Phys. J. D 18, 155-160 (2002).

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A. Yoshizawa, R. Kaji, and H. Tsuchida, "Generation of polarization-entangled photon pairs at 1550 nm using two PPLN waveguides," Electron. Lett. 39, 621-622 (2003).
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H. Takesue, Y. Tokura, H. Fukuda, T. Tsuchizawa, T. Watanabe, K. Yamada, and S. Itabashi, "Entanglement generation using silicon wire waveguide," Appl. Phys. Lett. 91, 201108 (2007).
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Voss, P. L.

X. Li, P. L. Voss, J. E. Sharping, and P. Kumar, "Optical fiber-source of polarization-entangled photons in the 1550 nm telecom band," Phys. Rev. Lett. 94, 053601 (2005).
[CrossRef] [PubMed]

M. Fiorentino, P. L. Voss, J. E. Sharping, and P. Kumar, "All-fiber photon-pair source for quantum communications," IEEE Photon. Technol. Lett. 14, 983-985 (2002).
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J. Fulconis, Q. Alibart, W. J. Wadsworth, and J. G. Rarity, "Quantum interference with photon pairs using two micro-structured fibres," New J. Phys. 9, 276 (2007).
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E. Waks, A. Zeevi, and Y. Yamamoto, "Security of quantum key distribution with entangled photons against individual attacks," Phys. Rev. A 65, 052310 (2002).
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P. G. Kwiat, E. Waks, A. G. White, I. Appelbaum, and P. H. Eberhard, "Ultrabright source of polarizationentangled photons," Phys. Rev. A 60, R773-R776 (1999).
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H. Takesue, Y. Tokura, H. Fukuda, T. Tsuchizawa, T. Watanabe, K. Yamada, and S. Itabashi, "Entanglement generation using silicon wire waveguide," Appl. Phys. Lett. 91, 201108 (2007).
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T. Yang, Q. Zhang, T. Y. Chen, S. Lu, J. Yin, J. W. Pan, Z. Y. Wei, J. R. Tian, and J. Zhang, "Experimental Synchronization of Independent Entangled Photon Sources," Phys. Rev. Lett. 96, 110501 (2006).
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T. Jennewein, G. Weihs, J. W. Pan, and A. Zeilinger, "Experimental nonlocality proof of quantum teleportation and entanglement swapping," Phys. Rev. Lett. 88, 017903 (2002).
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J. W. Pan, D. Bouwmeester, H. Weinfurter, and A. Zeilinger, "Experimental entanglement swapping: entangling photons that never interacted," Phys. Rev. Lett. 80, 3891-3894 (1998).
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P. G. Kwiat, E. Waks, A. G. White, I. Appelbaum, and P. H. Eberhard, "Ultrabright source of polarizationentangled photons," Phys. Rev. A 60, R773-R776 (1999).
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H. Takesue, Y. Tokura, H. Fukuda, T. Tsuchizawa, T. Watanabe, K. Yamada, and S. Itabashi, "Entanglement generation using silicon wire waveguide," Appl. Phys. Lett. 91, 201108 (2007).
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H. Takesue, S. W. Nam, Q. Zhang, R. H. Hadfield, T. Honjo, K. Tamaki, and Y. Yamamoto, "Quantum key distribution over 40 dB channel loss using superconducting single-photon detectors," Nat. Photonics 1, 343-348 (2007).
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T. Yang, Q. Zhang, T. Y. Chen, S. Lu, J. Yin, J. W. Pan, Z. Y. Wei, J. R. Tian, and J. Zhang, "Experimental Synchronization of Independent Entangled Photon Sources," Phys. Rev. Lett. 96, 110501 (2006).
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T. Yang, Q. Zhang, T. Y. Chen, S. Lu, J. Yin, J. W. Pan, Z. Y. Wei, J. R. Tian, and J. Zhang, "Experimental Synchronization of Independent Entangled Photon Sources," Phys. Rev. Lett. 96, 110501 (2006).
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A. Yoshizawa, R. Kaji, and H. Tsuchida, "Generation of polarization-entangled photon pairs at 1550 nm using two PPLN waveguides," Electron. Lett. 39, 621-622 (2003).
[CrossRef]

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A. Politi, M. J. Cryan, J. G. Rarity, S. Yu, and J. L. O’Brien, "Silica-on-silicon waveguide quantum circuits," Science 320, 646-649 (2008).
[CrossRef] [PubMed]

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Z. S. Yuan, Y. A. Chen, B. Zhao, S. Chen, J. Schmiedmayer, and J. W. Pan, "Experimental demonstration of a BDCZ quantum repeater node," Nature 454, 1098-1101 (2008).
[CrossRef] [PubMed]

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M. Halder, A. Beveratos, N. Gisin, V. Scarani, C. Simon, and H. Zbinden, "Entangling independent photons by time measurement," Nat. Physics 3, 692-695 (2007).
[CrossRef]

H. de Riedmatten, V. Scarani, I. Marcikic, A. Acin,W. Tittel, H. Zbinden, and N. Gisin, "Two independent photon pairs versus four-photon entangled states in parametric down conversion," J. Mod. Opt. 51, 1637-1649 (2004).

S. Tanzilli, W. Tittel, H. de Riedmatten, H. Zbinden, P. Baldi, M. DeMicheli, D. B. Ostrowsky, and N. Gisin, "PPLN waveguide for quantum communication, " Eur. Phys. J. D 18, 155-160 (2002).

J. Brendel, N. Gisin, W. Tittel, and H. Zbinden, "Pulsed energy-time entangled twin-photon source for quantum communication," Phys. Rev. Lett. 82, 2594-2597 (1999).
[CrossRef]

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E. Waks, A. Zeevi, and Y. Yamamoto, "Security of quantum key distribution with entangled photons against individual attacks," Phys. Rev. A 65, 052310 (2002).
[CrossRef]

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T. Jennewein, G. Weihs, J. W. Pan, and A. Zeilinger, "Experimental nonlocality proof of quantum teleportation and entanglement swapping," Phys. Rev. Lett. 88, 017903 (2002).
[CrossRef] [PubMed]

J. W. Pan, D. Bouwmeester, H. Weinfurter, and A. Zeilinger, "Experimental entanglement swapping: entangling photons that never interacted," Phys. Rev. Lett. 80, 3891-3894 (1998).
[CrossRef]

P. G. Kwiat, K. Mattle, H. Weinfurter, A. Zeilinger, A. V. Sergienko, and Y. Shih, "New high-intensity source of polarization-entangled photon pairs." Phys. Rev. Lett. 75, 4337-4341 (1995).
[CrossRef] [PubMed]

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T. Yang, Q. Zhang, T. Y. Chen, S. Lu, J. Yin, J. W. Pan, Z. Y. Wei, J. R. Tian, and J. Zhang, "Experimental Synchronization of Independent Entangled Photon Sources," Phys. Rev. Lett. 96, 110501 (2006).
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H. Takesue, S. W. Nam, Q. Zhang, R. H. Hadfield, T. Honjo, K. Tamaki, and Y. Yamamoto, "Quantum key distribution over 40 dB channel loss using superconducting single-photon detectors," Nat. Photonics 1, 343-348 (2007).
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Z. S. Yuan, Y. A. Chen, B. Zhao, S. Chen, J. Schmiedmayer, and J. W. Pan, "Experimental demonstration of a BDCZ quantum repeater node," Nature 454, 1098-1101 (2008).
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Appl. Opt. (1)

Appl. Phys. Lett. (2)

H. Takesue, "1.5-μm band Hong-Ou-Mandel experiment using photon pairs generated in two independent dispersion shifted fibers," Appl. Phys. Lett. 90, 204101 (2007).
[CrossRef]

H. Takesue, Y. Tokura, H. Fukuda, T. Tsuchizawa, T. Watanabe, K. Yamada, and S. Itabashi, "Entanglement generation using silicon wire waveguide," Appl. Phys. Lett. 91, 201108 (2007).
[CrossRef]

Electron. Lett. (1)

A. Yoshizawa, R. Kaji, and H. Tsuchida, "Generation of polarization-entangled photon pairs at 1550 nm using two PPLN waveguides," Electron. Lett. 39, 621-622 (2003).
[CrossRef]

Eur. Phys. J. D (1)

S. Tanzilli, W. Tittel, H. de Riedmatten, H. Zbinden, P. Baldi, M. DeMicheli, D. B. Ostrowsky, and N. Gisin, "PPLN waveguide for quantum communication, " Eur. Phys. J. D 18, 155-160 (2002).

IEEE Photon. Technol. Lett. (1)

M. Fiorentino, P. L. Voss, J. E. Sharping, and P. Kumar, "All-fiber photon-pair source for quantum communications," IEEE Photon. Technol. Lett. 14, 983-985 (2002).
[CrossRef]

J. Lightwave Technol. (1)

M. Suzuki, H. Tanaka, N. Edagawa, K. Utaka, and Y. Matsushima, "Transform-limited optical pulse generation up to 20-GHz repetition rate by a sinusoidally driven InGaAsP electroabsorption modulator," J. Lightwave Technol. 11, 468-473 (1993).
[CrossRef]

J. Mod. Opt. (3)

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[CrossRef]

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Figures (4)

Fig. 1.
Fig. 1.

Experimental setup (I) time-bin entangled photon-pair sources.

Fig. 2.
Fig. 2.

(a) Result of g 2(0) measurement. (b) Quantum efficiency and afterpulse probability as a function of dark count probability per gate. Squares and triangles: detector x, circles and crosses: detector y.

Fig. 3.
Fig. 3.

Experimental setup (II) fourfold coincidence measurement.

Fig. 4.
Fig. 4.

(a) HOM measurement result. The vertical axis shows the fourfold coincidences obtained by the TIA for 1,000,000 start pulses. The detection signals from Alice’s and Bob’s detectors were used as the start and stop pulses for the TIA. Alice’s and Bob’s detectors were gated using the detection signal from the detectors owned by Charlie. (b) Two-photon interference fringe obtained using coincidence counts of two signal photons conditioned by Bell state measurement of idler photons. The vertical axis shows the coincidence rate per start pulse. Squares: TA =32.25°C, circles: TA =32.35°C. Statistical error bars are given only for the data with TA =32.25°C. Note that no accidental coincidences or noise counts have been subtracted from the data shown in (a) and (b).

Equations (6)

Equations on this page are rendered with MathJax. Learn more.

S=1N(j=1Nj1sj1i)(k=1Nk2sk2i),
S 1N2 {Σk=1N k1sk2s(Φk++Φk)
+ Σk=1N1 (k1sk+12s+k+11sk2s)|Ψk+
+ (k1sk+12s|k+11sk2s)Ψk}.
VHOM2=μc+8μ2μc+12μ2.
VHOM1=1+r21+r22.

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