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The balanced homodyne detection technique is an important method to detect the quantum light field. The signal light injected into the phase sensitive optical parameter amplifier (OPA) is phase modulated. The output squeezed light of OPA is detected by the balanced homodyne detection system. When the phase sensitive OPA is operated at parametric amplification and deamplification respectively, we can judge which quadrature component of the quantum light field is measured by observing the modulation signal. We can demodulate the phase modulation signal to achieve the error signal, which is used to lock the relative phase of zero between the local and the quantum light fields (corresponding to the quadrature-amplitude of the unknown light field).
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Keywords:
- balanced homodyne detection /
- lock the phase
[1] Braunstein S L, Loock P V 2005 Rev. Mod. Phys. 77 513
[2] Braunstein S L, Pati A K 2003 Quantum Information with Continuous Variables (Dordrecht, Netherlands:Kluwer Academic)
[3] Cerf N, Leuchs G, Polzik E S 2007 Quantum Information with Continuous Variables of Atoms and Light (London:Imperial College Press)
[4] Weedbrook C, Pirandola S, Patron R G, Cerf N J, Ralph T C, Shapiro J H, Lloyd S 2012 Rev. Mod. Phys. 84 621
[5] Slusher R E, Hollberg L W, Yurke B, Mertz J C, Valley J F 1985 Phys. Rev. Lett. 55 2409
[6] Furusawa A, Sorensen J L, Braunstein S L, Fuchs C A, Kimble H J, Polzik E S 1998 Science 282 706
[7] Gu M, Chrzanowski H M, Assad S M, Symul T, Modi K, Ralph T C, Vedral V, Lam P K 2012 Nature Phys. 8 671
[8] Kasi K, Gao J R, Fabre C 1997 Europhys. Lett. 40 25
[9] Zhang T C, Goh K W, Chou C W, Lodahl P, Kimble H J 2003 Phys. Rev. A 67 033802
[10] Hétet G, Glöckl O, Pilypas K A, Harb C C, Buchler B C, Bachor H A, Lam P K 2007 J. Phys. B:At. Mol. Opt. Phys. 40 221
[11] Ma H L, Wei D, Ye C G, Zhang J, Peng K C 2005 Acta Phys. Sin. 54 3637 (in Chinese) [马红亮, 卫栋, 叶晨光, 张靖, 彭堃墀 2005 54 3637]
[12] Di K, Yu X D, Zhang J 2011 Acta Sin. Quantum Opt. 4 241 (in Chinese) [邸克, 于旭东, 张靖 2011 量子光学学报 4 241]
[13] Zhang J, Ye C G, Gao F, Xiao M 2008 Phys. Rev. Lett. 101 233602
[14] Di K, Xie C D, Zhang J 2011 Phys. Rev. Lett. 106 153602
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[1] Braunstein S L, Loock P V 2005 Rev. Mod. Phys. 77 513
[2] Braunstein S L, Pati A K 2003 Quantum Information with Continuous Variables (Dordrecht, Netherlands:Kluwer Academic)
[3] Cerf N, Leuchs G, Polzik E S 2007 Quantum Information with Continuous Variables of Atoms and Light (London:Imperial College Press)
[4] Weedbrook C, Pirandola S, Patron R G, Cerf N J, Ralph T C, Shapiro J H, Lloyd S 2012 Rev. Mod. Phys. 84 621
[5] Slusher R E, Hollberg L W, Yurke B, Mertz J C, Valley J F 1985 Phys. Rev. Lett. 55 2409
[6] Furusawa A, Sorensen J L, Braunstein S L, Fuchs C A, Kimble H J, Polzik E S 1998 Science 282 706
[7] Gu M, Chrzanowski H M, Assad S M, Symul T, Modi K, Ralph T C, Vedral V, Lam P K 2012 Nature Phys. 8 671
[8] Kasi K, Gao J R, Fabre C 1997 Europhys. Lett. 40 25
[9] Zhang T C, Goh K W, Chou C W, Lodahl P, Kimble H J 2003 Phys. Rev. A 67 033802
[10] Hétet G, Glöckl O, Pilypas K A, Harb C C, Buchler B C, Bachor H A, Lam P K 2007 J. Phys. B:At. Mol. Opt. Phys. 40 221
[11] Ma H L, Wei D, Ye C G, Zhang J, Peng K C 2005 Acta Phys. Sin. 54 3637 (in Chinese) [马红亮, 卫栋, 叶晨光, 张靖, 彭堃墀 2005 54 3637]
[12] Di K, Yu X D, Zhang J 2011 Acta Sin. Quantum Opt. 4 241 (in Chinese) [邸克, 于旭东, 张靖 2011 量子光学学报 4 241]
[13] Zhang J, Ye C G, Gao F, Xiao M 2008 Phys. Rev. Lett. 101 233602
[14] Di K, Xie C D, Zhang J 2011 Phys. Rev. Lett. 106 153602
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