Abstract

The visibility of the quantum interference “dip” seen in the Hong–Ou–Mandel experiment is optimized when a symmetric 5050 beamsplitter is used in the interferometer. Here we show that the reduction in visibility caused by an asymmetric beamsplitter can be compensated by manipulating the polarization states of the two input photons. We experimentally demonstrate this by using a highly asymmetric 1090 beamsplitter, and converting an initial dip visibility of 22% to a compensated value of 99%.

© 2010 Optical Society of America

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    [CrossRef]
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    [CrossRef] [PubMed]
  4. J. C. F. Matthews, A. Politi, A. Stefanov, and J. O'Brien, “Manipulation of multiphoton entanglement in waveguide quantum circuits,” Nat. Photonics 3, 346-350 (2009).
    [CrossRef]
  5. T. C. Ralph, A. G. White, W. J. Munro, and G. J. Milburn, “Simple scheme for efficient linear optics quantum gates,” Phys. Rev. A 65, 012314 (2001).
    [CrossRef]
  6. H. Hofmann and S. Takeuchi, “Quantum phase gate for photonic qubits using only beam splitters and postselection,” Phys. Rev. A 66, 024308 (2002).
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  7. J. L. O'Brien, G. J. Pryde, A. G. White, T. C. Ralph, and D. Branning, “Demonstration of an all-optical quantum controlled-NOT gate,” Nature 426, 264-267 (2003).
    [CrossRef] [PubMed]
  8. K. Sanaka, T. Jennewein, J.-W. Pan, K. Resch, and A. Zeilinger, “Experimental nonlinear sign shift for linear optics quantum computation,” Phys. Rev. Lett. 92, 017902 (2004).
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    [CrossRef] [PubMed]
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    [CrossRef] [PubMed]
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    [CrossRef]
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    [CrossRef] [PubMed]
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    [CrossRef]
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    [CrossRef] [PubMed]
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    [CrossRef] [PubMed]
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    [CrossRef]
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    [CrossRef]
  21. Z. Y. Ou, B. Liu, F. Sun, Y. X. Gong, Y. Huang, and G. Guo, “Demonstration of temporal distinguishability of three and four photons with asymmetric beam splitter,” in Coherence and Quantum Optics IX, eds. N.P.Bigelow, J.H.Eberly, and C.R.Stroud (Optical Society of America, 2008), p. 450.
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  23. Once optimized, we found the overall birefringence of the system to be fairly insensitive to the wavelength difference between the 803 nm beam and the 814 nm PDC signal, and typically obtained better results after performing the calibration with the much stronger 803 nm beam.
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    [CrossRef]
  25. N. K. Langford, T. J. Weinhold, R. Prevedel, K. J. Resch, A. Gilchrist, J. L. OBrien, G. J. Pryde, and A. G. White, “Demonstration of a simple entangling optical gate and its use in Bell-state analysis,” Phys. Rev. Lett. 95, 210504 (2005).
    [CrossRef] [PubMed]
  26. N. Kiesel, C. Schmid, U. Weber, R. Ursin, and H. Weinfurter, “Linear optics controlled-phase gate made simple,” Phys. Rev. Lett. 95, 210505 (2005).
    [CrossRef] [PubMed]
  27. R. Okamoto, H. F. Hofmann, S. Takeuchi, and K. Sasaki, “Demonstration of an optical quantum controlled-NOT gate without path interference,” Phys. Rev. Lett. 95, 210506 (2005).
    [CrossRef] [PubMed]
  28. A. Cernoch, L. Bartuskova, J. Soubusta, M. Jezek, J. Fiurasek, and M. Dusek, “Experimental phase-covariant cloning of polarization states of single photons,” Phys. Rev. A 74, 042327 (2006).
    [CrossRef]
  29. J. Soubusta, L. Bartuskova, A. Cernoch, J. Fiurasek, and M. Dusek, “Several experimental realizations of symmetric phase-covariant quantum cloners of single-photon qubits,” Phys. Rev. A 76, 042318 (2007).
    [CrossRef]
  30. J. Soubusta, L. Bartuskova, A. Cernoch, M. Dusek, and J. Fiurasek, “Experimental asymmetric phase-covariant quantum cloning of polarization qubits,” Phys. Rev. A 78, 052323 (2008).
    [CrossRef]

2009 (1)

J. C. F. Matthews, A. Politi, A. Stefanov, and J. O'Brien, “Manipulation of multiphoton entanglement in waveguide quantum circuits,” Nat. Photonics 3, 346-350 (2009).
[CrossRef]

2008 (3)

B. H. Liu, F. W. Sun, Y. X. Gong, Y. F. Huang, Z. Y. Ou, and G. C. Guo, “Demonstration of the three-photon de Broglie wavelength by projection measurement,” Phys. Rev. A 77, 023815 (2008).
[CrossRef]

Z. Y. Ou, “Characterizing temporal distinguishability of an N-photon state by a generalized photon bunching effect with multiphoton interference,” Phys. Rev. A 77, 043829 (2008).
[CrossRef]

J. Soubusta, L. Bartuskova, A. Cernoch, M. Dusek, and J. Fiurasek, “Experimental asymmetric phase-covariant quantum cloning of polarization qubits,” Phys. Rev. A 78, 052323 (2008).
[CrossRef]

2007 (5)

J. Soubusta, L. Bartuskova, A. Cernoch, J. Fiurasek, and M. Dusek, “Several experimental realizations of symmetric phase-covariant quantum cloners of single-photon qubits,” Phys. Rev. A 76, 042318 (2007).
[CrossRef]

B. H. Liu, F. W. Sun, Y. X. Gong, Y. F. Huang, G. C. Guo, and Z. Y. Ou, “Four-photon interference with asymmetric beam splitters,” Opt. Lett. 32, 1320-1322 (2007).
[CrossRef] [PubMed]

L. Bartuskova, M. Dusek, A. Cernoch, J. Soubusta, and J. Fiurasek, “Fiber-optics implementation of an asymmetric phase-covariant quantum cloner,” Phys. Rev. Lett. 99, 120505 (2007).
[CrossRef] [PubMed]

K. J. Resch, J. L. O'Brien, T. J. Weinhold, K. Sanaka, B. P. Lanyon, N. K. Langford, and A. G. White, “Entanglement generation by Fock-state filtration,” Phys. Rev. Lett. 98, 203602 (2007).
[CrossRef] [PubMed]

K. J. Resch, K. L. Pregnell, R. Prevedel, A. Gilchrist, G. J. Pryde, J. L. O'Brien, and A. G. White, “Time-reversal and super-resolving phase measurements,” Phys. Rev. Lett. 98, 223601 (2007).
[CrossRef] [PubMed]

2006 (2)

K. Sanaka, K. J. Resch, and A. Zeilinger, “Filtering out photonic Fock states,” Phys. Rev. Lett. 96, 083601 (2006).
[CrossRef] [PubMed]

A. Cernoch, L. Bartuskova, J. Soubusta, M. Jezek, J. Fiurasek, and M. Dusek, “Experimental phase-covariant cloning of polarization states of single photons,” Phys. Rev. A 74, 042327 (2006).
[CrossRef]

2005 (6)

N. K. Langford, T. J. Weinhold, R. Prevedel, K. J. Resch, A. Gilchrist, J. L. OBrien, G. J. Pryde, and A. G. White, “Demonstration of a simple entangling optical gate and its use in Bell-state analysis,” Phys. Rev. Lett. 95, 210504 (2005).
[CrossRef] [PubMed]

N. Kiesel, C. Schmid, U. Weber, R. Ursin, and H. Weinfurter, “Linear optics controlled-phase gate made simple,” Phys. Rev. Lett. 95, 210505 (2005).
[CrossRef] [PubMed]

R. Okamoto, H. F. Hofmann, S. Takeuchi, and K. Sasaki, “Demonstration of an optical quantum controlled-NOT gate without path interference,” Phys. Rev. Lett. 95, 210506 (2005).
[CrossRef] [PubMed]

Z. Zhao, A.-N. Zhang, X.-Q. Zhou, Y.-A. Chen, C.-Y. Lu, A. Karlsson, and J.-W. Pan, “Experimental realization of optimal asymmetric cloning and telecloning via partial teleportation,” Phys. Rev. Lett. 95, 030502 (2005).
[CrossRef] [PubMed]

K. Sanaka, “Linear optical extraction of photon-number Fock states from coherent states,” Phys. Rev. A 71, 021801 (2005).
[CrossRef]

H. Wang and T. Kobayashi, “Phase measurement at the Heisenberg limit with three photons,” Phys. Rev. A 71, 021802(R) (2005).
[CrossRef]

2004 (3)

K. Sanaka, T. Jennewein, J.-W. Pan, K. Resch, and A. Zeilinger, “Experimental nonlinear sign shift for linear optics quantum computation,” Phys. Rev. Lett. 92, 017902 (2004).
[CrossRef] [PubMed]

R. Filip, “Quantum partial teleportation as optimal cloning at a distance,” Phys. Rev. A 69, 052301 (2004).
[CrossRef]

M. Suda, H. Rauch, and M. Peev, “New intensity and visibility aspects of a double-loop neutron interferometer,” J. Opt. B: Quantum Semiclassical Opt. 6, 345-350 (2004).
[CrossRef]

2003 (1)

J. L. O'Brien, G. J. Pryde, A. G. White, T. C. Ralph, and D. Branning, “Demonstration of an all-optical quantum controlled-NOT gate,” Nature 426, 264-267 (2003).
[CrossRef] [PubMed]

2002 (2)

H. Hofmann and S. Takeuchi, “Quantum phase gate for photonic qubits using only beam splitters and postselection,” Phys. Rev. A 66, 024308 (2002).
[CrossRef]

J. Fiurasek, “Conditional generation of N-photon entangled states of light,” Phys. Rev. A 65, 053818 (2002).
[CrossRef]

2001 (1)

T. C. Ralph, A. G. White, W. J. Munro, and G. J. Milburn, “Simple scheme for efficient linear optics quantum gates,” Phys. Rev. A 65, 012314 (2001).
[CrossRef]

1989 (2)

1988 (1)

Y. H. Shih and C. O. Alley, “New type of Einstein-Podolsky-Rosen-Bohm experiment using pairs of light quanta produced by optical parametric down conversion,” Phys. Rev. Lett. 61, 2921-2924 (1988).
[CrossRef] [PubMed]

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]

Alley, C. O.

Y. H. Shih and C. O. Alley, “New type of Einstein-Podolsky-Rosen-Bohm experiment using pairs of light quanta produced by optical parametric down conversion,” Phys. Rev. Lett. 61, 2921-2924 (1988).
[CrossRef] [PubMed]

Bartuskova, L.

J. Soubusta, L. Bartuskova, A. Cernoch, M. Dusek, and J. Fiurasek, “Experimental asymmetric phase-covariant quantum cloning of polarization qubits,” Phys. Rev. A 78, 052323 (2008).
[CrossRef]

J. Soubusta, L. Bartuskova, A. Cernoch, J. Fiurasek, and M. Dusek, “Several experimental realizations of symmetric phase-covariant quantum cloners of single-photon qubits,” Phys. Rev. A 76, 042318 (2007).
[CrossRef]

L. Bartuskova, M. Dusek, A. Cernoch, J. Soubusta, and J. Fiurasek, “Fiber-optics implementation of an asymmetric phase-covariant quantum cloner,” Phys. Rev. Lett. 99, 120505 (2007).
[CrossRef] [PubMed]

A. Cernoch, L. Bartuskova, J. Soubusta, M. Jezek, J. Fiurasek, and M. Dusek, “Experimental phase-covariant cloning of polarization states of single photons,” Phys. Rev. A 74, 042327 (2006).
[CrossRef]

Branning, D.

J. L. O'Brien, G. J. Pryde, A. G. White, T. C. Ralph, and D. Branning, “Demonstration of an all-optical quantum controlled-NOT gate,” Nature 426, 264-267 (2003).
[CrossRef] [PubMed]

Cernoch, A.

J. Soubusta, L. Bartuskova, A. Cernoch, M. Dusek, and J. Fiurasek, “Experimental asymmetric phase-covariant quantum cloning of polarization qubits,” Phys. Rev. A 78, 052323 (2008).
[CrossRef]

J. Soubusta, L. Bartuskova, A. Cernoch, J. Fiurasek, and M. Dusek, “Several experimental realizations of symmetric phase-covariant quantum cloners of single-photon qubits,” Phys. Rev. A 76, 042318 (2007).
[CrossRef]

L. Bartuskova, M. Dusek, A. Cernoch, J. Soubusta, and J. Fiurasek, “Fiber-optics implementation of an asymmetric phase-covariant quantum cloner,” Phys. Rev. Lett. 99, 120505 (2007).
[CrossRef] [PubMed]

A. Cernoch, L. Bartuskova, J. Soubusta, M. Jezek, J. Fiurasek, and M. Dusek, “Experimental phase-covariant cloning of polarization states of single photons,” Phys. Rev. A 74, 042327 (2006).
[CrossRef]

Chen, Y.-A.

Z. Zhao, A.-N. Zhang, X.-Q. Zhou, Y.-A. Chen, C.-Y. Lu, A. Karlsson, and J.-W. Pan, “Experimental realization of optimal asymmetric cloning and telecloning via partial teleportation,” Phys. Rev. Lett. 95, 030502 (2005).
[CrossRef] [PubMed]

Dusek, M.

J. Soubusta, L. Bartuskova, A. Cernoch, M. Dusek, and J. Fiurasek, “Experimental asymmetric phase-covariant quantum cloning of polarization qubits,” Phys. Rev. A 78, 052323 (2008).
[CrossRef]

J. Soubusta, L. Bartuskova, A. Cernoch, J. Fiurasek, and M. Dusek, “Several experimental realizations of symmetric phase-covariant quantum cloners of single-photon qubits,” Phys. Rev. A 76, 042318 (2007).
[CrossRef]

L. Bartuskova, M. Dusek, A. Cernoch, J. Soubusta, and J. Fiurasek, “Fiber-optics implementation of an asymmetric phase-covariant quantum cloner,” Phys. Rev. Lett. 99, 120505 (2007).
[CrossRef] [PubMed]

A. Cernoch, L. Bartuskova, J. Soubusta, M. Jezek, J. Fiurasek, and M. Dusek, “Experimental phase-covariant cloning of polarization states of single photons,” Phys. Rev. A 74, 042327 (2006).
[CrossRef]

Fearn, H.

Filip, R.

R. Filip, “Quantum partial teleportation as optimal cloning at a distance,” Phys. Rev. A 69, 052301 (2004).
[CrossRef]

Fiurasek, J.

J. Soubusta, L. Bartuskova, A. Cernoch, M. Dusek, and J. Fiurasek, “Experimental asymmetric phase-covariant quantum cloning of polarization qubits,” Phys. Rev. A 78, 052323 (2008).
[CrossRef]

J. Soubusta, L. Bartuskova, A. Cernoch, J. Fiurasek, and M. Dusek, “Several experimental realizations of symmetric phase-covariant quantum cloners of single-photon qubits,” Phys. Rev. A 76, 042318 (2007).
[CrossRef]

L. Bartuskova, M. Dusek, A. Cernoch, J. Soubusta, and J. Fiurasek, “Fiber-optics implementation of an asymmetric phase-covariant quantum cloner,” Phys. Rev. Lett. 99, 120505 (2007).
[CrossRef] [PubMed]

A. Cernoch, L. Bartuskova, J. Soubusta, M. Jezek, J. Fiurasek, and M. Dusek, “Experimental phase-covariant cloning of polarization states of single photons,” Phys. Rev. A 74, 042327 (2006).
[CrossRef]

J. Fiurasek, “Conditional generation of N-photon entangled states of light,” Phys. Rev. A 65, 053818 (2002).
[CrossRef]

Gilchrist, A.

K. J. Resch, K. L. Pregnell, R. Prevedel, A. Gilchrist, G. J. Pryde, J. L. O'Brien, and A. G. White, “Time-reversal and super-resolving phase measurements,” Phys. Rev. Lett. 98, 223601 (2007).
[CrossRef] [PubMed]

N. K. Langford, T. J. Weinhold, R. Prevedel, K. J. Resch, A. Gilchrist, J. L. OBrien, G. J. Pryde, and A. G. White, “Demonstration of a simple entangling optical gate and its use in Bell-state analysis,” Phys. Rev. Lett. 95, 210504 (2005).
[CrossRef] [PubMed]

Gong, Y. X.

B. H. Liu, F. W. Sun, Y. X. Gong, Y. F. Huang, Z. Y. Ou, and G. C. Guo, “Demonstration of the three-photon de Broglie wavelength by projection measurement,” Phys. Rev. A 77, 023815 (2008).
[CrossRef]

B. H. Liu, F. W. Sun, Y. X. Gong, Y. F. Huang, G. C. Guo, and Z. Y. Ou, “Four-photon interference with asymmetric beam splitters,” Opt. Lett. 32, 1320-1322 (2007).
[CrossRef] [PubMed]

Z. Y. Ou, B. Liu, F. Sun, Y. X. Gong, Y. Huang, and G. Guo, “Demonstration of temporal distinguishability of three and four photons with asymmetric beam splitter,” in Coherence and Quantum Optics IX, eds. N.P.Bigelow, J.H.Eberly, and C.R.Stroud (Optical Society of America, 2008), p. 450.

Guo, G.

Z. Y. Ou, B. Liu, F. Sun, Y. X. Gong, Y. Huang, and G. Guo, “Demonstration of temporal distinguishability of three and four photons with asymmetric beam splitter,” in Coherence and Quantum Optics IX, eds. N.P.Bigelow, J.H.Eberly, and C.R.Stroud (Optical Society of America, 2008), p. 450.

Guo, G. C.

B. H. Liu, F. W. Sun, Y. X. Gong, Y. F. Huang, Z. Y. Ou, and G. C. Guo, “Demonstration of the three-photon de Broglie wavelength by projection measurement,” Phys. Rev. A 77, 023815 (2008).
[CrossRef]

B. H. Liu, F. W. Sun, Y. X. Gong, Y. F. Huang, G. C. Guo, and Z. Y. Ou, “Four-photon interference with asymmetric beam splitters,” Opt. Lett. 32, 1320-1322 (2007).
[CrossRef] [PubMed]

Hofmann, H.

H. Hofmann and S. Takeuchi, “Quantum phase gate for photonic qubits using only beam splitters and postselection,” Phys. Rev. A 66, 024308 (2002).
[CrossRef]

Hofmann, H. F.

R. Okamoto, H. F. Hofmann, S. Takeuchi, and K. Sasaki, “Demonstration of an optical quantum controlled-NOT gate without path interference,” Phys. Rev. Lett. 95, 210506 (2005).
[CrossRef] [PubMed]

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).
[CrossRef] [PubMed]

Huang, Y.

Z. Y. Ou, B. Liu, F. Sun, Y. X. Gong, Y. Huang, and G. Guo, “Demonstration of temporal distinguishability of three and four photons with asymmetric beam splitter,” in Coherence and Quantum Optics IX, eds. N.P.Bigelow, J.H.Eberly, and C.R.Stroud (Optical Society of America, 2008), p. 450.

Huang, Y. F.

B. H. Liu, F. W. Sun, Y. X. Gong, Y. F. Huang, Z. Y. Ou, and G. C. Guo, “Demonstration of the three-photon de Broglie wavelength by projection measurement,” Phys. Rev. A 77, 023815 (2008).
[CrossRef]

B. H. Liu, F. W. Sun, Y. X. Gong, Y. F. Huang, G. C. Guo, and Z. Y. Ou, “Four-photon interference with asymmetric beam splitters,” Opt. Lett. 32, 1320-1322 (2007).
[CrossRef] [PubMed]

Jennewein, T.

K. Sanaka, T. Jennewein, J.-W. Pan, K. Resch, and A. Zeilinger, “Experimental nonlinear sign shift for linear optics quantum computation,” Phys. Rev. Lett. 92, 017902 (2004).
[CrossRef] [PubMed]

Jezek, M.

A. Cernoch, L. Bartuskova, J. Soubusta, M. Jezek, J. Fiurasek, and M. Dusek, “Experimental phase-covariant cloning of polarization states of single photons,” Phys. Rev. A 74, 042327 (2006).
[CrossRef]

Karlsson, A.

Z. Zhao, A.-N. Zhang, X.-Q. Zhou, Y.-A. Chen, C.-Y. Lu, A. Karlsson, and J.-W. Pan, “Experimental realization of optimal asymmetric cloning and telecloning via partial teleportation,” Phys. Rev. Lett. 95, 030502 (2005).
[CrossRef] [PubMed]

Kiesel, N.

N. Kiesel, C. Schmid, U. Weber, R. Ursin, and H. Weinfurter, “Linear optics controlled-phase gate made simple,” Phys. Rev. Lett. 95, 210505 (2005).
[CrossRef] [PubMed]

Kobayashi, T.

H. Wang and T. Kobayashi, “Phase measurement at the Heisenberg limit with three photons,” Phys. Rev. A 71, 021802(R) (2005).
[CrossRef]

Langford, N. K.

K. J. Resch, J. L. O'Brien, T. J. Weinhold, K. Sanaka, B. P. Lanyon, N. K. Langford, and A. G. White, “Entanglement generation by Fock-state filtration,” Phys. Rev. Lett. 98, 203602 (2007).
[CrossRef] [PubMed]

N. K. Langford, T. J. Weinhold, R. Prevedel, K. J. Resch, A. Gilchrist, J. L. OBrien, G. J. Pryde, and A. G. White, “Demonstration of a simple entangling optical gate and its use in Bell-state analysis,” Phys. Rev. Lett. 95, 210504 (2005).
[CrossRef] [PubMed]

Lanyon, B. P.

K. J. Resch, J. L. O'Brien, T. J. Weinhold, K. Sanaka, B. P. Lanyon, N. K. Langford, and A. G. White, “Entanglement generation by Fock-state filtration,” Phys. Rev. Lett. 98, 203602 (2007).
[CrossRef] [PubMed]

Liu, B.

Z. Y. Ou, B. Liu, F. Sun, Y. X. Gong, Y. Huang, and G. Guo, “Demonstration of temporal distinguishability of three and four photons with asymmetric beam splitter,” in Coherence and Quantum Optics IX, eds. N.P.Bigelow, J.H.Eberly, and C.R.Stroud (Optical Society of America, 2008), p. 450.

Liu, B. H.

B. H. Liu, F. W. Sun, Y. X. Gong, Y. F. Huang, Z. Y. Ou, and G. C. Guo, “Demonstration of the three-photon de Broglie wavelength by projection measurement,” Phys. Rev. A 77, 023815 (2008).
[CrossRef]

B. H. Liu, F. W. Sun, Y. X. Gong, Y. F. Huang, G. C. Guo, and Z. Y. Ou, “Four-photon interference with asymmetric beam splitters,” Opt. Lett. 32, 1320-1322 (2007).
[CrossRef] [PubMed]

Loudon, R.

Lu, C.-Y.

Z. Zhao, A.-N. Zhang, X.-Q. Zhou, Y.-A. Chen, C.-Y. Lu, A. Karlsson, and J.-W. Pan, “Experimental realization of optimal asymmetric cloning and telecloning via partial teleportation,” Phys. Rev. Lett. 95, 030502 (2005).
[CrossRef] [PubMed]

Mandel, L.

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]

Matthews, J. C. F.

J. C. F. Matthews, A. Politi, A. Stefanov, and J. O'Brien, “Manipulation of multiphoton entanglement in waveguide quantum circuits,” Nat. Photonics 3, 346-350 (2009).
[CrossRef]

Milburn, G. J.

T. C. Ralph, A. G. White, W. J. Munro, and G. J. Milburn, “Simple scheme for efficient linear optics quantum gates,” Phys. Rev. A 65, 012314 (2001).
[CrossRef]

Munro, W. J.

T. C. Ralph, A. G. White, W. J. Munro, and G. J. Milburn, “Simple scheme for efficient linear optics quantum gates,” Phys. Rev. A 65, 012314 (2001).
[CrossRef]

OBrien, J. L.

N. K. Langford, T. J. Weinhold, R. Prevedel, K. J. Resch, A. Gilchrist, J. L. OBrien, G. J. Pryde, and A. G. White, “Demonstration of a simple entangling optical gate and its use in Bell-state analysis,” Phys. Rev. Lett. 95, 210504 (2005).
[CrossRef] [PubMed]

O'Brien, J.

J. C. F. Matthews, A. Politi, A. Stefanov, and J. O'Brien, “Manipulation of multiphoton entanglement in waveguide quantum circuits,” Nat. Photonics 3, 346-350 (2009).
[CrossRef]

O'Brien, J. L.

K. J. Resch, K. L. Pregnell, R. Prevedel, A. Gilchrist, G. J. Pryde, J. L. O'Brien, and A. G. White, “Time-reversal and super-resolving phase measurements,” Phys. Rev. Lett. 98, 223601 (2007).
[CrossRef] [PubMed]

K. J. Resch, J. L. O'Brien, T. J. Weinhold, K. Sanaka, B. P. Lanyon, N. K. Langford, and A. G. White, “Entanglement generation by Fock-state filtration,” Phys. Rev. Lett. 98, 203602 (2007).
[CrossRef] [PubMed]

J. L. O'Brien, G. J. Pryde, A. G. White, T. C. Ralph, and D. Branning, “Demonstration of an all-optical quantum controlled-NOT gate,” Nature 426, 264-267 (2003).
[CrossRef] [PubMed]

Okamoto, R.

R. Okamoto, H. F. Hofmann, S. Takeuchi, and K. Sasaki, “Demonstration of an optical quantum controlled-NOT gate without path interference,” Phys. Rev. Lett. 95, 210506 (2005).
[CrossRef] [PubMed]

Ou, Z. Y.

B. H. Liu, F. W. Sun, Y. X. Gong, Y. F. Huang, Z. Y. Ou, and G. C. Guo, “Demonstration of the three-photon de Broglie wavelength by projection measurement,” Phys. Rev. A 77, 023815 (2008).
[CrossRef]

Z. Y. Ou, “Characterizing temporal distinguishability of an N-photon state by a generalized photon bunching effect with multiphoton interference,” Phys. Rev. A 77, 043829 (2008).
[CrossRef]

B. H. Liu, F. W. Sun, Y. X. Gong, Y. F. Huang, G. C. Guo, and Z. Y. Ou, “Four-photon interference with asymmetric beam splitters,” Opt. Lett. 32, 1320-1322 (2007).
[CrossRef] [PubMed]

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]

Z. Y. Ou, B. Liu, F. Sun, Y. X. Gong, Y. Huang, and G. Guo, “Demonstration of temporal distinguishability of three and four photons with asymmetric beam splitter,” in Coherence and Quantum Optics IX, eds. N.P.Bigelow, J.H.Eberly, and C.R.Stroud (Optical Society of America, 2008), p. 450.

Pan, J.-W.

Z. Zhao, A.-N. Zhang, X.-Q. Zhou, Y.-A. Chen, C.-Y. Lu, A. Karlsson, and J.-W. Pan, “Experimental realization of optimal asymmetric cloning and telecloning via partial teleportation,” Phys. Rev. Lett. 95, 030502 (2005).
[CrossRef] [PubMed]

K. Sanaka, T. Jennewein, J.-W. Pan, K. Resch, and A. Zeilinger, “Experimental nonlinear sign shift for linear optics quantum computation,” Phys. Rev. Lett. 92, 017902 (2004).
[CrossRef] [PubMed]

Peev, M.

M. Suda, H. Rauch, and M. Peev, “New intensity and visibility aspects of a double-loop neutron interferometer,” J. Opt. B: Quantum Semiclassical Opt. 6, 345-350 (2004).
[CrossRef]

Politi, A.

J. C. F. Matthews, A. Politi, A. Stefanov, and J. O'Brien, “Manipulation of multiphoton entanglement in waveguide quantum circuits,” Nat. Photonics 3, 346-350 (2009).
[CrossRef]

Pregnell, K. L.

K. J. Resch, K. L. Pregnell, R. Prevedel, A. Gilchrist, G. J. Pryde, J. L. O'Brien, and A. G. White, “Time-reversal and super-resolving phase measurements,” Phys. Rev. Lett. 98, 223601 (2007).
[CrossRef] [PubMed]

Prevedel, R.

K. J. Resch, K. L. Pregnell, R. Prevedel, A. Gilchrist, G. J. Pryde, J. L. O'Brien, and A. G. White, “Time-reversal and super-resolving phase measurements,” Phys. Rev. Lett. 98, 223601 (2007).
[CrossRef] [PubMed]

N. K. Langford, T. J. Weinhold, R. Prevedel, K. J. Resch, A. Gilchrist, J. L. OBrien, G. J. Pryde, and A. G. White, “Demonstration of a simple entangling optical gate and its use in Bell-state analysis,” Phys. Rev. Lett. 95, 210504 (2005).
[CrossRef] [PubMed]

Pryde, G. J.

K. J. Resch, K. L. Pregnell, R. Prevedel, A. Gilchrist, G. J. Pryde, J. L. O'Brien, and A. G. White, “Time-reversal and super-resolving phase measurements,” Phys. Rev. Lett. 98, 223601 (2007).
[CrossRef] [PubMed]

N. K. Langford, T. J. Weinhold, R. Prevedel, K. J. Resch, A. Gilchrist, J. L. OBrien, G. J. Pryde, and A. G. White, “Demonstration of a simple entangling optical gate and its use in Bell-state analysis,” Phys. Rev. Lett. 95, 210504 (2005).
[CrossRef] [PubMed]

J. L. O'Brien, G. J. Pryde, A. G. White, T. C. Ralph, and D. Branning, “Demonstration of an all-optical quantum controlled-NOT gate,” Nature 426, 264-267 (2003).
[CrossRef] [PubMed]

Ralph, T. C.

J. L. O'Brien, G. J. Pryde, A. G. White, T. C. Ralph, and D. Branning, “Demonstration of an all-optical quantum controlled-NOT gate,” Nature 426, 264-267 (2003).
[CrossRef] [PubMed]

T. C. Ralph, A. G. White, W. J. Munro, and G. J. Milburn, “Simple scheme for efficient linear optics quantum gates,” Phys. Rev. A 65, 012314 (2001).
[CrossRef]

Rarity, J. G.

Rauch, H.

M. Suda, H. Rauch, and M. Peev, “New intensity and visibility aspects of a double-loop neutron interferometer,” J. Opt. B: Quantum Semiclassical Opt. 6, 345-350 (2004).
[CrossRef]

Resch, K.

K. Sanaka, T. Jennewein, J.-W. Pan, K. Resch, and A. Zeilinger, “Experimental nonlinear sign shift for linear optics quantum computation,” Phys. Rev. Lett. 92, 017902 (2004).
[CrossRef] [PubMed]

Resch, K. J.

K. J. Resch, K. L. Pregnell, R. Prevedel, A. Gilchrist, G. J. Pryde, J. L. O'Brien, and A. G. White, “Time-reversal and super-resolving phase measurements,” Phys. Rev. Lett. 98, 223601 (2007).
[CrossRef] [PubMed]

K. J. Resch, J. L. O'Brien, T. J. Weinhold, K. Sanaka, B. P. Lanyon, N. K. Langford, and A. G. White, “Entanglement generation by Fock-state filtration,” Phys. Rev. Lett. 98, 203602 (2007).
[CrossRef] [PubMed]

K. Sanaka, K. J. Resch, and A. Zeilinger, “Filtering out photonic Fock states,” Phys. Rev. Lett. 96, 083601 (2006).
[CrossRef] [PubMed]

N. K. Langford, T. J. Weinhold, R. Prevedel, K. J. Resch, A. Gilchrist, J. L. OBrien, G. J. Pryde, and A. G. White, “Demonstration of a simple entangling optical gate and its use in Bell-state analysis,” Phys. Rev. Lett. 95, 210504 (2005).
[CrossRef] [PubMed]

Sanaka, K.

K. J. Resch, J. L. O'Brien, T. J. Weinhold, K. Sanaka, B. P. Lanyon, N. K. Langford, and A. G. White, “Entanglement generation by Fock-state filtration,” Phys. Rev. Lett. 98, 203602 (2007).
[CrossRef] [PubMed]

K. Sanaka, K. J. Resch, and A. Zeilinger, “Filtering out photonic Fock states,” Phys. Rev. Lett. 96, 083601 (2006).
[CrossRef] [PubMed]

K. Sanaka, “Linear optical extraction of photon-number Fock states from coherent states,” Phys. Rev. A 71, 021801 (2005).
[CrossRef]

K. Sanaka, T. Jennewein, J.-W. Pan, K. Resch, and A. Zeilinger, “Experimental nonlinear sign shift for linear optics quantum computation,” Phys. Rev. Lett. 92, 017902 (2004).
[CrossRef] [PubMed]

Sasaki, K.

R. Okamoto, H. F. Hofmann, S. Takeuchi, and K. Sasaki, “Demonstration of an optical quantum controlled-NOT gate without path interference,” Phys. Rev. Lett. 95, 210506 (2005).
[CrossRef] [PubMed]

Schmid, C.

N. Kiesel, C. Schmid, U. Weber, R. Ursin, and H. Weinfurter, “Linear optics controlled-phase gate made simple,” Phys. Rev. Lett. 95, 210505 (2005).
[CrossRef] [PubMed]

Shih, Y. H.

Y. H. Shih and C. O. Alley, “New type of Einstein-Podolsky-Rosen-Bohm experiment using pairs of light quanta produced by optical parametric down conversion,” Phys. Rev. Lett. 61, 2921-2924 (1988).
[CrossRef] [PubMed]

Soubusta, J.

J. Soubusta, L. Bartuskova, A. Cernoch, M. Dusek, and J. Fiurasek, “Experimental asymmetric phase-covariant quantum cloning of polarization qubits,” Phys. Rev. A 78, 052323 (2008).
[CrossRef]

J. Soubusta, L. Bartuskova, A. Cernoch, J. Fiurasek, and M. Dusek, “Several experimental realizations of symmetric phase-covariant quantum cloners of single-photon qubits,” Phys. Rev. A 76, 042318 (2007).
[CrossRef]

L. Bartuskova, M. Dusek, A. Cernoch, J. Soubusta, and J. Fiurasek, “Fiber-optics implementation of an asymmetric phase-covariant quantum cloner,” Phys. Rev. Lett. 99, 120505 (2007).
[CrossRef] [PubMed]

A. Cernoch, L. Bartuskova, J. Soubusta, M. Jezek, J. Fiurasek, and M. Dusek, “Experimental phase-covariant cloning of polarization states of single photons,” Phys. Rev. A 74, 042327 (2006).
[CrossRef]

Stefanov, A.

J. C. F. Matthews, A. Politi, A. Stefanov, and J. O'Brien, “Manipulation of multiphoton entanglement in waveguide quantum circuits,” Nat. Photonics 3, 346-350 (2009).
[CrossRef]

Suda, M.

M. Suda, H. Rauch, and M. Peev, “New intensity and visibility aspects of a double-loop neutron interferometer,” J. Opt. B: Quantum Semiclassical Opt. 6, 345-350 (2004).
[CrossRef]

Sun, F.

Z. Y. Ou, B. Liu, F. Sun, Y. X. Gong, Y. Huang, and G. Guo, “Demonstration of temporal distinguishability of three and four photons with asymmetric beam splitter,” in Coherence and Quantum Optics IX, eds. N.P.Bigelow, J.H.Eberly, and C.R.Stroud (Optical Society of America, 2008), p. 450.

Sun, F. W.

B. H. Liu, F. W. Sun, Y. X. Gong, Y. F. Huang, Z. Y. Ou, and G. C. Guo, “Demonstration of the three-photon de Broglie wavelength by projection measurement,” Phys. Rev. A 77, 023815 (2008).
[CrossRef]

B. H. Liu, F. W. Sun, Y. X. Gong, Y. F. Huang, G. C. Guo, and Z. Y. Ou, “Four-photon interference with asymmetric beam splitters,” Opt. Lett. 32, 1320-1322 (2007).
[CrossRef] [PubMed]

Takeuchi, S.

R. Okamoto, H. F. Hofmann, S. Takeuchi, and K. Sasaki, “Demonstration of an optical quantum controlled-NOT gate without path interference,” Phys. Rev. Lett. 95, 210506 (2005).
[CrossRef] [PubMed]

H. Hofmann and S. Takeuchi, “Quantum phase gate for photonic qubits using only beam splitters and postselection,” Phys. Rev. A 66, 024308 (2002).
[CrossRef]

Tapster, P. R.

Ursin, R.

N. Kiesel, C. Schmid, U. Weber, R. Ursin, and H. Weinfurter, “Linear optics controlled-phase gate made simple,” Phys. Rev. Lett. 95, 210505 (2005).
[CrossRef] [PubMed]

Wang, H.

H. Wang and T. Kobayashi, “Phase measurement at the Heisenberg limit with three photons,” Phys. Rev. A 71, 021802(R) (2005).
[CrossRef]

Weber, U.

N. Kiesel, C. Schmid, U. Weber, R. Ursin, and H. Weinfurter, “Linear optics controlled-phase gate made simple,” Phys. Rev. Lett. 95, 210505 (2005).
[CrossRef] [PubMed]

Weinfurter, H.

N. Kiesel, C. Schmid, U. Weber, R. Ursin, and H. Weinfurter, “Linear optics controlled-phase gate made simple,” Phys. Rev. Lett. 95, 210505 (2005).
[CrossRef] [PubMed]

Weinhold, T. J.

K. J. Resch, J. L. O'Brien, T. J. Weinhold, K. Sanaka, B. P. Lanyon, N. K. Langford, and A. G. White, “Entanglement generation by Fock-state filtration,” Phys. Rev. Lett. 98, 203602 (2007).
[CrossRef] [PubMed]

N. K. Langford, T. J. Weinhold, R. Prevedel, K. J. Resch, A. Gilchrist, J. L. OBrien, G. J. Pryde, and A. G. White, “Demonstration of a simple entangling optical gate and its use in Bell-state analysis,” Phys. Rev. Lett. 95, 210504 (2005).
[CrossRef] [PubMed]

White, A. G.

K. J. Resch, J. L. O'Brien, T. J. Weinhold, K. Sanaka, B. P. Lanyon, N. K. Langford, and A. G. White, “Entanglement generation by Fock-state filtration,” Phys. Rev. Lett. 98, 203602 (2007).
[CrossRef] [PubMed]

K. J. Resch, K. L. Pregnell, R. Prevedel, A. Gilchrist, G. J. Pryde, J. L. O'Brien, and A. G. White, “Time-reversal and super-resolving phase measurements,” Phys. Rev. Lett. 98, 223601 (2007).
[CrossRef] [PubMed]

N. K. Langford, T. J. Weinhold, R. Prevedel, K. J. Resch, A. Gilchrist, J. L. OBrien, G. J. Pryde, and A. G. White, “Demonstration of a simple entangling optical gate and its use in Bell-state analysis,” Phys. Rev. Lett. 95, 210504 (2005).
[CrossRef] [PubMed]

J. L. O'Brien, G. J. Pryde, A. G. White, T. C. Ralph, and D. Branning, “Demonstration of an all-optical quantum controlled-NOT gate,” Nature 426, 264-267 (2003).
[CrossRef] [PubMed]

T. C. Ralph, A. G. White, W. J. Munro, and G. J. Milburn, “Simple scheme for efficient linear optics quantum gates,” Phys. Rev. A 65, 012314 (2001).
[CrossRef]

Zeilinger, A.

K. Sanaka, K. J. Resch, and A. Zeilinger, “Filtering out photonic Fock states,” Phys. Rev. Lett. 96, 083601 (2006).
[CrossRef] [PubMed]

K. Sanaka, T. Jennewein, J.-W. Pan, K. Resch, and A. Zeilinger, “Experimental nonlinear sign shift for linear optics quantum computation,” Phys. Rev. Lett. 92, 017902 (2004).
[CrossRef] [PubMed]

Zhang, A.-N.

Z. Zhao, A.-N. Zhang, X.-Q. Zhou, Y.-A. Chen, C.-Y. Lu, A. Karlsson, and J.-W. Pan, “Experimental realization of optimal asymmetric cloning and telecloning via partial teleportation,” Phys. Rev. Lett. 95, 030502 (2005).
[CrossRef] [PubMed]

Zhao, Z.

Z. Zhao, A.-N. Zhang, X.-Q. Zhou, Y.-A. Chen, C.-Y. Lu, A. Karlsson, and J.-W. Pan, “Experimental realization of optimal asymmetric cloning and telecloning via partial teleportation,” Phys. Rev. Lett. 95, 030502 (2005).
[CrossRef] [PubMed]

Zhou, X.-Q.

Z. Zhao, A.-N. Zhang, X.-Q. Zhou, Y.-A. Chen, C.-Y. Lu, A. Karlsson, and J.-W. Pan, “Experimental realization of optimal asymmetric cloning and telecloning via partial teleportation,” Phys. Rev. Lett. 95, 030502 (2005).
[CrossRef] [PubMed]

J. Opt. B: Quantum Semiclassical Opt. (1)

M. Suda, H. Rauch, and M. Peev, “New intensity and visibility aspects of a double-loop neutron interferometer,” J. Opt. B: Quantum Semiclassical Opt. 6, 345-350 (2004).
[CrossRef]

J. Opt. Soc. Am. B (2)

Nat. Photonics (1)

J. C. F. Matthews, A. Politi, A. Stefanov, and J. O'Brien, “Manipulation of multiphoton entanglement in waveguide quantum circuits,” Nat. Photonics 3, 346-350 (2009).
[CrossRef]

Nature (1)

J. L. O'Brien, G. J. Pryde, A. G. White, T. C. Ralph, and D. Branning, “Demonstration of an all-optical quantum controlled-NOT gate,” Nature 426, 264-267 (2003).
[CrossRef] [PubMed]

Opt. Lett. (1)

Phys. Rev. A (11)

B. H. Liu, F. W. Sun, Y. X. Gong, Y. F. Huang, Z. Y. Ou, and G. C. Guo, “Demonstration of the three-photon de Broglie wavelength by projection measurement,” Phys. Rev. A 77, 023815 (2008).
[CrossRef]

Z. Y. Ou, “Characterizing temporal distinguishability of an N-photon state by a generalized photon bunching effect with multiphoton interference,” Phys. Rev. A 77, 043829 (2008).
[CrossRef]

A. Cernoch, L. Bartuskova, J. Soubusta, M. Jezek, J. Fiurasek, and M. Dusek, “Experimental phase-covariant cloning of polarization states of single photons,” Phys. Rev. A 74, 042327 (2006).
[CrossRef]

J. Soubusta, L. Bartuskova, A. Cernoch, J. Fiurasek, and M. Dusek, “Several experimental realizations of symmetric phase-covariant quantum cloners of single-photon qubits,” Phys. Rev. A 76, 042318 (2007).
[CrossRef]

J. Soubusta, L. Bartuskova, A. Cernoch, M. Dusek, and J. Fiurasek, “Experimental asymmetric phase-covariant quantum cloning of polarization qubits,” Phys. Rev. A 78, 052323 (2008).
[CrossRef]

R. Filip, “Quantum partial teleportation as optimal cloning at a distance,” Phys. Rev. A 69, 052301 (2004).
[CrossRef]

T. C. Ralph, A. G. White, W. J. Munro, and G. J. Milburn, “Simple scheme for efficient linear optics quantum gates,” Phys. Rev. A 65, 012314 (2001).
[CrossRef]

H. Hofmann and S. Takeuchi, “Quantum phase gate for photonic qubits using only beam splitters and postselection,” Phys. Rev. A 66, 024308 (2002).
[CrossRef]

K. Sanaka, “Linear optical extraction of photon-number Fock states from coherent states,” Phys. Rev. A 71, 021801 (2005).
[CrossRef]

J. Fiurasek, “Conditional generation of N-photon entangled states of light,” Phys. Rev. A 65, 053818 (2002).
[CrossRef]

H. Wang and T. Kobayashi, “Phase measurement at the Heisenberg limit with three photons,” Phys. Rev. A 71, 021802(R) (2005).
[CrossRef]

Phys. Rev. Lett. (11)

K. Sanaka, K. J. Resch, and A. Zeilinger, “Filtering out photonic Fock states,” Phys. Rev. Lett. 96, 083601 (2006).
[CrossRef] [PubMed]

K. J. Resch, J. L. O'Brien, T. J. Weinhold, K. Sanaka, B. P. Lanyon, N. K. Langford, and A. G. White, “Entanglement generation by Fock-state filtration,” Phys. Rev. Lett. 98, 203602 (2007).
[CrossRef] [PubMed]

N. K. Langford, T. J. Weinhold, R. Prevedel, K. J. Resch, A. Gilchrist, J. L. OBrien, G. J. Pryde, and A. G. White, “Demonstration of a simple entangling optical gate and its use in Bell-state analysis,” Phys. Rev. Lett. 95, 210504 (2005).
[CrossRef] [PubMed]

N. Kiesel, C. Schmid, U. Weber, R. Ursin, and H. Weinfurter, “Linear optics controlled-phase gate made simple,” Phys. Rev. Lett. 95, 210505 (2005).
[CrossRef] [PubMed]

R. Okamoto, H. F. Hofmann, S. Takeuchi, and K. Sasaki, “Demonstration of an optical quantum controlled-NOT gate without path interference,” Phys. Rev. Lett. 95, 210506 (2005).
[CrossRef] [PubMed]

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]

Y. H. Shih and C. O. Alley, “New type of Einstein-Podolsky-Rosen-Bohm experiment using pairs of light quanta produced by optical parametric down conversion,” Phys. Rev. Lett. 61, 2921-2924 (1988).
[CrossRef] [PubMed]

Z. Zhao, A.-N. Zhang, X.-Q. Zhou, Y.-A. Chen, C.-Y. Lu, A. Karlsson, and J.-W. Pan, “Experimental realization of optimal asymmetric cloning and telecloning via partial teleportation,” Phys. Rev. Lett. 95, 030502 (2005).
[CrossRef] [PubMed]

L. Bartuskova, M. Dusek, A. Cernoch, J. Soubusta, and J. Fiurasek, “Fiber-optics implementation of an asymmetric phase-covariant quantum cloner,” Phys. Rev. Lett. 99, 120505 (2007).
[CrossRef] [PubMed]

K. Sanaka, T. Jennewein, J.-W. Pan, K. Resch, and A. Zeilinger, “Experimental nonlinear sign shift for linear optics quantum computation,” Phys. Rev. Lett. 92, 017902 (2004).
[CrossRef] [PubMed]

K. J. Resch, K. L. Pregnell, R. Prevedel, A. Gilchrist, G. J. Pryde, J. L. O'Brien, and A. G. White, “Time-reversal and super-resolving phase measurements,” Phys. Rev. Lett. 98, 223601 (2007).
[CrossRef] [PubMed]

Other (2)

Z. Y. Ou, B. Liu, F. Sun, Y. X. Gong, Y. Huang, and G. Guo, “Demonstration of temporal distinguishability of three and four photons with asymmetric beam splitter,” in Coherence and Quantum Optics IX, eds. N.P.Bigelow, J.H.Eberly, and C.R.Stroud (Optical Society of America, 2008), p. 450.

Once optimized, we found the overall birefringence of the system to be fairly insensitive to the wavelength difference between the 803 nm beam and the 814 nm PDC signal, and typically obtained better results after performing the calibration with the much stronger 803 nm beam.

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Figures (4)

Fig. 1
Fig. 1

Overview of a method to compensate for beamsplitter asymmetries in basic two-photon interference “dip” experiments. Unequal reflection and transmission coefficients r and t provide two-photon “which-path” information which reduces the visibility of the interference effect. By manipulating the polarization states of the two incident photons, 100% visibility can be restored.

Fig. 2
Fig. 2

Schematic of the apparatus used to demonstrate compensation of beamsplitter asymmetries in two-photon interference experiments. A PDC source is used to send two single-photons into an asymmetric 10 90 single-mode fiber-coupler. Nonclassical “dips” in the coincidence count rate between detectors D 1 and D 2 are measured as a function of the relative delay of the input photons. A half waveplate ( λ 2 -plate) and polarizers are used to perform the compensation technique. Fiber polarization controllers (fpc’s) and an auxiliary waveplate (λ-plate) are used to negate birefringence in the fiber-coupler.

Fig. 3
Fig. 3

Experimental results demonstrating compensation for an asymmetric 10 90 beamsplitter. (a) The expected HOM-like “dip” with a low visibility of ( 21.7 ± 0.4 ) % . (b) Visibility is increased to ( 98.6 ± 0.7 ) % by using the compensation technique. In each plot, the lines simply connect the data points, and the visibility is obtained by least-squares fitting of the data with a simple Gaussian function.

Fig. 4
Fig. 4

Demonstration of the dependence of the dip visibility on the difference between the input polarization states Δ θ . The solid curve is a theoretical plot of Eq. (1) for the beamsplitter with R = 0.1 and T = 0.9 . The data points were obtained by fitting plots similar to those shown in Fig. 3 (the error bars are comparable to the point size).

Equations (1)

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

V = 2 R T Cos 2 ( Δ θ ) R 2 + T 2 Cos 4 ( Δ θ ) .

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