Abstract

We report spontaneous parametric downconversion having an unusually wide spectral bandwidth. A collinear type 1 phase-matching configuration is employed with degeneracy near the zero group-velocity dispersion frequency. With a spectral width of 1080nm and degenerate wavelength of 1885nm, the source also emits a high flux of 3.4×1011s1W1 photon pairs constrained to a cone of only 2° half-angle. A rigorous theoretical approach is developed that confirms the experimental observations. The source properties are consistent with an ultrashort photon-pair correlation time and, for a narrowband pump, extremely high-dimensional spectral entanglement.

© 2007 Optical Society of America

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    [CrossRef]
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    [CrossRef] [PubMed]
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  4. L. Zhang, E. Mukamel, I. A. Walmsley, C. Silberhorn, A. B. U'Ren, and K. Banaszek, in Quantum Information with Continuous Variables of Atoms and Light, N.Cerf, G.Leuchs, and E.Polzik, eds. (Imperial College Press, 2007).
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    [CrossRef] [PubMed]
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    [CrossRef] [PubMed]
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    [CrossRef]
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2006 (1)

2005 (3)

D. Strekalov, A. B. Matsko, A. Savchenkov, and L. Maleki, J. Mod. Opt. 52, 2233 (2005).
[CrossRef]

B. Dayan, A. Pe'er, A. A. Friesem, and Y. Silberberg, Phys. Rev. Lett. 94, 043602 (2005).
[CrossRef] [PubMed]

M. B. Nasr, G. Di Giuseppe, B. E. A. Saleh, A. V. Sergienko, and M. C. Teich, Opt. Commun. 246, 521 (2005).
[CrossRef]

2004 (1)

A. B. U'Ren, C. Silberhorn, K. Banaszek, and I. A. Walmsley, Phys. Rev. Lett. 93, 093601 (2004).
[CrossRef] [PubMed]

2003 (2)

M. B. Nasr, B. E. A. Saleh, A. V. Sergienko, and M. C. Teich, Phys. Rev. Lett. 91, 083601 (2003).
[CrossRef] [PubMed]

A. B. U'Ren, K. Banaszek, and I. A. Walmsley, Quantum Inf. Comput. 3, 480 (2003).

1997 (1)

1996 (1)

1995 (1)

1989 (1)

Z. Y. Ou, L. Wang, and L. Mandel, Phys. Rev. A 40, 1428 (1989).
[CrossRef] [PubMed]

Banaszek, K.

A. B. U'Ren, C. Silberhorn, K. Banaszek, and I. A. Walmsley, Phys. Rev. Lett. 93, 093601 (2004).
[CrossRef] [PubMed]

A. B. U'Ren, K. Banaszek, and I. A. Walmsley, Quantum Inf. Comput. 3, 480 (2003).

L. Zhang, E. Mukamel, I. A. Walmsley, C. Silberhorn, A. B. U'Ren, and K. Banaszek, in Quantum Information with Continuous Variables of Atoms and Light, N.Cerf, G.Leuchs, and E.Polzik, eds. (Imperial College Press, 2007).

L. Zhang, A. B. U'Ren, R. Erdmann, K. A. O'Donnell, C. Silberhorn, K. Banaszek, and I. A. Walmsley, "Generation of highly entangled photon pairs for continuous variable Bell inequality violation," J. Mod. Opt. (to be published).

Byer, R. L.

Carrasco, S.

Dayan, B.

B. Dayan, A. Pe'er, A. A. Friesem, and Y. Silberberg, Phys. Rev. Lett. 94, 043602 (2005).
[CrossRef] [PubMed]

Di Giuseppe, G.

M. B. Nasr, G. Di Giuseppe, B. E. A. Saleh, A. V. Sergienko, and M. C. Teich, Opt. Commun. 246, 521 (2005).
[CrossRef]

Eckardt, R. C.

Erdmann, R.

L. Zhang, A. B. U'Ren, R. Erdmann, K. A. O'Donnell, C. Silberhorn, K. Banaszek, and I. A. Walmsley, "Generation of highly entangled photon pairs for continuous variable Bell inequality violation," J. Mod. Opt. (to be published).

Fejer, M. M.

Friesem, A. A.

B. Dayan, A. Pe'er, A. A. Friesem, and Y. Silberberg, Phys. Rev. Lett. 94, 043602 (2005).
[CrossRef] [PubMed]

Hänsch, T. W.

Hemmerich, A.

Jundt, D. H.

Maleki, L.

D. Strekalov, A. B. Matsko, A. Savchenkov, and L. Maleki, J. Mod. Opt. 52, 2233 (2005).
[CrossRef]

Mandel, L.

Z. Y. Ou, L. Wang, and L. Mandel, Phys. Rev. A 40, 1428 (1989).
[CrossRef] [PubMed]

Matsko, A. B.

D. Strekalov, A. B. Matsko, A. Savchenkov, and L. Maleki, J. Mod. Opt. 52, 2233 (2005).
[CrossRef]

Mukamel, E.

L. Zhang, E. Mukamel, I. A. Walmsley, C. Silberhorn, A. B. U'Ren, and K. Banaszek, in Quantum Information with Continuous Variables of Atoms and Light, N.Cerf, G.Leuchs, and E.Polzik, eds. (Imperial College Press, 2007).

Myers, L. E.

Nasr, M. B.

S. Carrasco, M. B. Nasr, A. V. Sergienko, B. E. A. Saleh, M. C. Teich, J. P. Torres, and L. Torner, Opt. Lett. 31, 253 (2006).
[CrossRef] [PubMed]

M. B. Nasr, G. Di Giuseppe, B. E. A. Saleh, A. V. Sergienko, and M. C. Teich, Opt. Commun. 246, 521 (2005).
[CrossRef]

M. B. Nasr, B. E. A. Saleh, A. V. Sergienko, and M. C. Teich, Phys. Rev. Lett. 91, 083601 (2003).
[CrossRef] [PubMed]

O'Donnell, K. A.

L. Zhang, A. B. U'Ren, R. Erdmann, K. A. O'Donnell, C. Silberhorn, K. Banaszek, and I. A. Walmsley, "Generation of highly entangled photon pairs for continuous variable Bell inequality violation," J. Mod. Opt. (to be published).

Ou, Z. Y.

Z. Y. Ou, L. Wang, and L. Mandel, Phys. Rev. A 40, 1428 (1989).
[CrossRef] [PubMed]

Pe'er, A.

B. Dayan, A. Pe'er, A. A. Friesem, and Y. Silberberg, Phys. Rev. Lett. 94, 043602 (2005).
[CrossRef] [PubMed]

Ricci, L.

Saleh, B. E. A.

S. Carrasco, M. B. Nasr, A. V. Sergienko, B. E. A. Saleh, M. C. Teich, J. P. Torres, and L. Torner, Opt. Lett. 31, 253 (2006).
[CrossRef] [PubMed]

M. B. Nasr, G. Di Giuseppe, B. E. A. Saleh, A. V. Sergienko, and M. C. Teich, Opt. Commun. 246, 521 (2005).
[CrossRef]

M. B. Nasr, B. E. A. Saleh, A. V. Sergienko, and M. C. Teich, Phys. Rev. Lett. 91, 083601 (2003).
[CrossRef] [PubMed]

Savchenkov, A.

D. Strekalov, A. B. Matsko, A. Savchenkov, and L. Maleki, J. Mod. Opt. 52, 2233 (2005).
[CrossRef]

Sergienko, A. V.

S. Carrasco, M. B. Nasr, A. V. Sergienko, B. E. A. Saleh, M. C. Teich, J. P. Torres, and L. Torner, Opt. Lett. 31, 253 (2006).
[CrossRef] [PubMed]

M. B. Nasr, G. Di Giuseppe, B. E. A. Saleh, A. V. Sergienko, and M. C. Teich, Opt. Commun. 246, 521 (2005).
[CrossRef]

M. B. Nasr, B. E. A. Saleh, A. V. Sergienko, and M. C. Teich, Phys. Rev. Lett. 91, 083601 (2003).
[CrossRef] [PubMed]

Silberberg, Y.

B. Dayan, A. Pe'er, A. A. Friesem, and Y. Silberberg, Phys. Rev. Lett. 94, 043602 (2005).
[CrossRef] [PubMed]

Silberhorn, C.

A. B. U'Ren, C. Silberhorn, K. Banaszek, and I. A. Walmsley, Phys. Rev. Lett. 93, 093601 (2004).
[CrossRef] [PubMed]

L. Zhang, A. B. U'Ren, R. Erdmann, K. A. O'Donnell, C. Silberhorn, K. Banaszek, and I. A. Walmsley, "Generation of highly entangled photon pairs for continuous variable Bell inequality violation," J. Mod. Opt. (to be published).

L. Zhang, E. Mukamel, I. A. Walmsley, C. Silberhorn, A. B. U'Ren, and K. Banaszek, in Quantum Information with Continuous Variables of Atoms and Light, N.Cerf, G.Leuchs, and E.Polzik, eds. (Imperial College Press, 2007).

Strekalov, D.

D. Strekalov, A. B. Matsko, A. Savchenkov, and L. Maleki, J. Mod. Opt. 52, 2233 (2005).
[CrossRef]

Teich, M. C.

S. Carrasco, M. B. Nasr, A. V. Sergienko, B. E. A. Saleh, M. C. Teich, J. P. Torres, and L. Torner, Opt. Lett. 31, 253 (2006).
[CrossRef] [PubMed]

M. B. Nasr, G. Di Giuseppe, B. E. A. Saleh, A. V. Sergienko, and M. C. Teich, Opt. Commun. 246, 521 (2005).
[CrossRef]

M. B. Nasr, B. E. A. Saleh, A. V. Sergienko, and M. C. Teich, Phys. Rev. Lett. 91, 083601 (2003).
[CrossRef] [PubMed]

Torner, L.

Torres, J. P.

U'Ren, A. B.

A. B. U'Ren, C. Silberhorn, K. Banaszek, and I. A. Walmsley, Phys. Rev. Lett. 93, 093601 (2004).
[CrossRef] [PubMed]

A. B. U'Ren, K. Banaszek, and I. A. Walmsley, Quantum Inf. Comput. 3, 480 (2003).

L. Zhang, A. B. U'Ren, R. Erdmann, K. A. O'Donnell, C. Silberhorn, K. Banaszek, and I. A. Walmsley, "Generation of highly entangled photon pairs for continuous variable Bell inequality violation," J. Mod. Opt. (to be published).

L. Zhang, E. Mukamel, I. A. Walmsley, C. Silberhorn, A. B. U'Ren, and K. Banaszek, in Quantum Information with Continuous Variables of Atoms and Light, N.Cerf, G.Leuchs, and E.Polzik, eds. (Imperial College Press, 2007).

Vuletic, V.

Walmsley, I. A.

A. B. U'Ren, C. Silberhorn, K. Banaszek, and I. A. Walmsley, Phys. Rev. Lett. 93, 093601 (2004).
[CrossRef] [PubMed]

A. B. U'Ren, K. Banaszek, and I. A. Walmsley, Quantum Inf. Comput. 3, 480 (2003).

L. Zhang, E. Mukamel, I. A. Walmsley, C. Silberhorn, A. B. U'Ren, and K. Banaszek, in Quantum Information with Continuous Variables of Atoms and Light, N.Cerf, G.Leuchs, and E.Polzik, eds. (Imperial College Press, 2007).

L. Zhang, A. B. U'Ren, R. Erdmann, K. A. O'Donnell, C. Silberhorn, K. Banaszek, and I. A. Walmsley, "Generation of highly entangled photon pairs for continuous variable Bell inequality violation," J. Mod. Opt. (to be published).

Wang, L.

Z. Y. Ou, L. Wang, and L. Mandel, Phys. Rev. A 40, 1428 (1989).
[CrossRef] [PubMed]

Zhang, L.

L. Zhang, E. Mukamel, I. A. Walmsley, C. Silberhorn, A. B. U'Ren, and K. Banaszek, in Quantum Information with Continuous Variables of Atoms and Light, N.Cerf, G.Leuchs, and E.Polzik, eds. (Imperial College Press, 2007).

L. Zhang, A. B. U'Ren, R. Erdmann, K. A. O'Donnell, C. Silberhorn, K. Banaszek, and I. A. Walmsley, "Generation of highly entangled photon pairs for continuous variable Bell inequality violation," J. Mod. Opt. (to be published).

Zimmermann, C.

J. Mod. Opt. (1)

D. Strekalov, A. B. Matsko, A. Savchenkov, and L. Maleki, J. Mod. Opt. 52, 2233 (2005).
[CrossRef]

Opt. Commun. (1)

M. B. Nasr, G. Di Giuseppe, B. E. A. Saleh, A. V. Sergienko, and M. C. Teich, Opt. Commun. 246, 521 (2005).
[CrossRef]

Opt. Lett. (4)

Phys. Rev. A (1)

Z. Y. Ou, L. Wang, and L. Mandel, Phys. Rev. A 40, 1428 (1989).
[CrossRef] [PubMed]

Phys. Rev. Lett. (3)

M. B. Nasr, B. E. A. Saleh, A. V. Sergienko, and M. C. Teich, Phys. Rev. Lett. 91, 083601 (2003).
[CrossRef] [PubMed]

B. Dayan, A. Pe'er, A. A. Friesem, and Y. Silberberg, Phys. Rev. Lett. 94, 043602 (2005).
[CrossRef] [PubMed]

A. B. U'Ren, C. Silberhorn, K. Banaszek, and I. A. Walmsley, Phys. Rev. Lett. 93, 093601 (2004).
[CrossRef] [PubMed]

Quantum Inf. Comput. (1)

A. B. U'Ren, K. Banaszek, and I. A. Walmsley, Quantum Inf. Comput. 3, 480 (2003).

Other (2)

L. Zhang, A. B. U'Ren, R. Erdmann, K. A. O'Donnell, C. Silberhorn, K. Banaszek, and I. A. Walmsley, "Generation of highly entangled photon pairs for continuous variable Bell inequality violation," J. Mod. Opt. (to be published).

L. Zhang, E. Mukamel, I. A. Walmsley, C. Silberhorn, A. B. U'Ren, and K. Banaszek, in Quantum Information with Continuous Variables of Atoms and Light, N.Cerf, G.Leuchs, and E.Polzik, eds. (Imperial College Press, 2007).

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Figures (2)

Fig. 1
Fig. 1

Broadband downconversion experiment. The Ti:sapphire laser (TS) beam is chopped (C) and focused into a lithium niobate crystal LN by lenses L1 and L2. A half-wave plate WP rotates the pump polarization. A Si Brewster plate (BP, with plate normal directed out of figure plane) isolates the downconversion, and the emission half-angle subtended by the limiting aperture after BP defines Δ θ . The Ca F 2 lens L3 focuses the light into the spectrometer SP.

Fig. 2
Fig. 2

(a) Experimental downconversion spectra for a 1 cm lithium niobate crystal with poling period 27.4 μ m , pumped at wavelength 942.5 nm . Cases show collection angle Δ θ = 0.5 ° (squares), Δ θ = 1.0 ° (inverted triangles), Δ θ = 1.5 ° (circles), Δ θ = 2.0 ° (triangles), Δ θ = 2.5 ° (diamonds). (b) Corresponding theoretical spectra for 942.5 nm , convolved over the spectrometer slit integration width. Horizontal lines denote these ω s -dependent widths; vertical lines denote the degenerate frequency.

Equations (8)

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ω p ω s ω i = 0 ,
Δ k k p ( ω p ) k s ( ω s ) k i ( ω i ) k g = 0 ,
Δ k = n = 1 [ ( 1 ) n + 1 k i ( n ) ( ω d ) k s ( n ) ( ω d ) ] δ ω s n n ! ,
R 1 ( ω s ) = ϵ 0 2 δ t ω s d x d y z 0 c δ t z 0 d z I ̂ ( r , z 0 c ) ,
R 1 ( ω s ) ω s k s 2 k s ( 1 ) n s 2 0 π d θ s sin θ s 0 2 π d ϕ s d 3 k i ( ω i n i 2 ) × η r ( θ s , ϕ s ) g ( ω s , θ s , ϕ s ; ω i , θ i , ϕ i ) 2 δ ( ω p ω s ω i ) ,
g ( ω s , θ s , ϕ s ; ω i , θ i , ϕ i ) = exp [ ( k w 0 2 ) 2 ] sin ( β L ) ( β L ) ,
k 2 = k s 2 sin 2 θ s + k i 2 sin 2 θ i + 2 k s k i sin θ s sin θ i cos ( ϕ s ϕ i ) ,
Δ k = k p k s cos θ s k i cos θ i k g .

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