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On-chip implementation of the probabilistic quantum optical state comparison amplifier
References. View by:. Article Order. Year. Author. Publication. W. Wootters and W. Zurek, “A Single Quantum Cannot Be Cloned,” Nature 299(5886), 802–803 (1982). [Crossref] . C. M. Caves, “Quantum limits on noise in linear amplifiers,” Phys. Rev. D 26(8), 1817–1839 (1982). [Crossref] . V. Scarani, H. Bechmann-Pasquinucci, N. J. Cerf, M. Du?ek, N. Lütkenhaus, and M. Peev, “The security of practical quantum key distribution,” Rev. Mod. Phys. 81(3), 1301–1350 (2009). [Crossref] . N. Gisin, G. Ribordy, W. Tittel, and H. Zbinden, “Quantum cryptography,” Rev. Mod. Phys. 74(1), 145–195 (2002). [Crossref] . S. Pandey, Z. Jiang, J. Combes, and C. M. Caves, “Quantum limits on probabilistic amplifiers,” Phys. Rev. A 88(3), 033852 (2013). [Crossref] . T. C. Ralph and A. P. Lund, “Nondeterministic Noiseless Linear Amplification of Quantum Systems,” in AIP Conf. Proc., vol. 1110 (2009), pp. 155–160. . D. T. Pegg, L. S. Phillips, and S. M. Barnett, “Optical State Truncation by Projection Synthesis,” Phys. Rev. Lett. 81(8), 1604–1606 (1998). [Crossref] . G. Y. Xiang, T. C. Ralph, A. P. Lund, N. Walk, and G. J. Pryde, “Heralded noiseless linear amplification and distillation of entanglement,” Nat. Photonics 4(5), 316–319 (2010). [Crossref] . F. Ferreyrol, M. Barbieri, R. Blandino, S. Fossier, R. Tualle-Brouri, and P. Grangier, “Implementation of a Nondeterministic Optical Noiseless Amplifier,” Phys. Rev. Lett. 104(12), 123603 (2010). [Crossref] . J. Jeffers, “Nondeterministic amplifier for two-photon superpositions,” Phys. Rev. A 82(6), 063828 (2010). [Crossref] . N. Gisin, S. Pironio, and N. Sangouard, “Proposal for Implementing Device-Independent Quantum Key Distribution Based on a Heralded Qubit Amplifier,” Phys. Rev. Lett. 105(7), 070501 (2010). [Crossref] . C. I. Osorio, N. Bruno, N. Sangouard, H. Zbinden, N. Gisin, and R. T. Thew, “Heralded photon amplification for quantum communication,” Phys. Rev. A 86(2), 023815 (2012). [Crossref] . S. Kocsis, G. Y. Xiang, T. C. Ralph, and G. J. Pryde, “Heralded noiseless amplification of a photon polarization qubit,” Nat. Phys. 9(1), 23–28 (2013). [Crossref] . N. Bruno, V. Pini, A. Martin, and R. T. Thew, “A complete characterization of the heralded noiseless amplification of photons,” New J. Phys. 15(9), 093002 (2013). [Crossref] . J. Fiurá?ek, “Engineering quantum operations on traveling light beams by multiple photon addition and subtraction,” Phys. Rev. A 80(5), 053822 (2009). [Crossref] . P. Marek and R. Filip, “Coherent-state phase concentration by quantum probabilistic amplification,” Phys. Rev. A 81(2), 022302 (2010). [Crossref] . A. Zavatta, J. Fiurá?ek, and M. Bellini, “A high-fidelity noiseless amplifier for quantum light states,” Nat. Photonics 5(1), 52–56 (2011). [Crossref] . M. A. Usuga, C. R. Müller, C. Wittmann, P. Marek, R. Filip, C. Marquardt, G. Leuchs, and U. L. Andersen, “Noise-powered probabilistic concentration of phase information,” Nat. Phys. 6(10), 767–771 (2010). [Crossref] . J. Jeffers, “Optical amplifier-powered quantum optical amplification,” Phys. Rev. A 83(5), 053818 (2011). [Crossref] . D. Menzies and S. Croke, “Noiseless linear amplification via weak measurements,” arXiv:0903.4181 [quant-ph] (2009). . J. Ho, A. Boston, M. Palsson, and G. Pryde, “Experimental noiseless linear amplification using weak measurements,” New J. Phys. 18(9), 093026 (2016). [Crossref] . V. Dunjko and E. Andersson, “Truly noiseless probabilistic amplification,” Phys. Rev. A 86(4), 042322 (2012). [Crossref] . E. Eleftheriadou, S. M. Barnett, and J. Jeffers, “Quantum Optical State Comparison Amplifier,” Phys. Rev. Lett. 111(21), 213601 (2013). [Crossref] . R. J. Donaldson, R. J. Collins, E. Eleftheriadou, S. M. Barnett, J. Jeffers, and G. S. Buller, “Experimental Implementation of a Quantum Optical State Comparison Amplifier,” Phys. Rev. Lett. 114(12), 120505 (2015). [Crossref] . R. J. Donaldson, L. Mazzarella, R. J. Collins, J. Jeffers, and G. S. Buller, “A high-gain and high-fidelity coherent state comparison amplifier,” Commun. Phys. 1(1), 54 (2018). [Crossref] . M. Rosati, A. Mari, and V. Giovannetti, “Coherent-state discrimination via nonheralded probabilistic amplification,” Phys. Rev. A 93(6), 062315 (2016). [Crossref] . S. Tanzilli, A. Martin, F. Kaiser, M. De Micheli, O. Alibart, and D. Ostrowsky, “On the genesis and evolution of Integrated Quantum Optics,” Laser Photonics Rev. 6(1), 115–143 (2012). [Crossref] . A. Orieux and E. Diamanti, “Recent advances on integrated quantum communications,” J. Opt. 18(8), 083002 (2016). [Crossref] . F. Flamini, N. Spagnolo, and F. Sciarrino, “Photonic quantum information processing: a review,” Rep. Prog. Phys. 82(1), 016001 (2019). [Crossref] . L. Vivien and L. Pavesi, Handbook of Silicon Photonics (Taylor & Francis, 2016). . K. M. Davis, K. Miura, N. Sugimoto, and K. Hirao, “Writing waveguides in glass with a femtosecond laser,” Opt. Lett. 21(21), 1729–1731 (1996). [Crossref] . R. R. Gattass and E. Mazur, “Femtosecond laser micromachining in transparent materials,” Nat. Photonics 2(4), 219–225 (2008). [Crossref] . D. Choudhury, J. R. Macdonald, and A. K. Kar, “Ultrafast laser inscription: perspectives on future integrated applications,” Laser Photonics Rev. 8(6), 827–846 (2014). [Crossref] . J. Bryant, R. R. Thomson, and M. J. Withford, “Focus issue introduction: recent advances in astrophotonics,” Opt. Express 25(17), 19966–19967 (2017). [Crossref] . M. Tillmann, B. Daki?, R. Heilmann, S. Nolte, A. Szameit, and P. Walther, “Experimental boson sampling,” Nat. Photonics 7(7), 540–544 (2013). [Crossref] . S. Mukherjee, D. Mogilevtsev, G. Y. Slepyan, T. H. Doherty, R. R. Thomson, and N. Korolkova, “Dissipatively coupled waveguide networks for coherent diffusive photonics,” Nat. Commun. 8(1), 1909 (2017). [Crossref] . L. A. Fernandes, J. R. Grenier, P. R. Herman, J. S. Aitchison, and P. V. S. Marques, “Femtosecond laser fabrication of birefringent directional couplers as polarization beam splitters in fused silica,” Opt. Express 19(13), 11992–11999 (2011). [Crossref] . A. M. Streltsov and N. F. Borrelli, “Fabrication and analysis of a directional coupler written in glass by nanojoule femtosecond laser pulses,” Opt. Lett. 26(1), 42–43 (2001). [Crossref] . G. Corrielli, A. Crespi, R. Geremia, R. Ramponi, L. Sansoni, A. Santinelli, P. Mataloni, F. Sciarrino, and R. Osellame, “Rotated waveplates in integrated waveguide optics,” Nat. Commun. 5(1), 4249 (2014). [Crossref] . R. Heilmann, M. Gr?fe, S. Nolte, and A. Szameit, “Arbitrary photonic wave plate operations on chip: Realizing Hadamard, Pauli-X, and rotation gates for polarisation qubits,” Sci. Rep. 4(1), 4118 (2015). [Crossref] . A. Crespi, R. Osellame, R. Ramponi, V. Giovannetti, R. Fazio, L. Sansoni, F. De Nicola, F. Sciarrino, and P. Mataloni, “Anderson localization of entangled photons in an integrated quantum walk,” Nat. Photonics 7(4), 322–328 (2013). [Crossref] . L. A. Fernandes, J. R. Grenier, P. R. Herman, J. S. Aitchison, and P. V. S. Marques, “Stress induced birefringence tuning in femtosecond laser fabricated waveguides in fused silica,” Opt. Express 20(22), 24103–24114 (2012). [Crossref] . A. Crespi, R. Ramponi, R. Osellame, L. Sansoni, I. Bongioanni, F. Sciarrino, G. Vallone, and P. Mataloni, “Integrated photonic quantum gates for polarization qubits,” Nat. Commun. 2(1), 566 (2011). [Crossref] . G. Corrielli, A. Seri, M. Mazzera, R. Osellame, and H. de Riedmatten, “Integrated Optical Memory Based on Laser-Written Waveguides,” Phys. Rev. Appl. 5(5), 054013 (2016). [Crossref] . M. Ams, G. Marshall, D. Spence, and M. Withford, “Slit beam shaping method for femtosecond laser direct-write fabrication of symmetric waveguides in bulk glasses,” Opt. Express 13(15), 5676–5681 (2005). [Crossref] . Y. Wang, L. Hermann Negri, I. Chiamenti, I. Abe, and H. J. Kalinowski, “Automated System for Femtosecond Laser Writing of Photonic Structures,” J. Control. Autom. Electr. Syst. 29(2), 153–162 (2018). [Crossref] . R. J. Hughes, G. L. Morgan, and C. G. Peterson, “Quantum key distribution over a 48 km optical fibre network,” J. Mod. Opt. 47(2-3), 533–547 (2000). [Crossref] . R. J. Collins, R. Amiri, M. Fujiwara, T. Honjo, K. Shimizu, K. Tamaki, M. Takeoka, E. Andersson, G. S. Buller, and M. Sasaki, “Experimental transmission of quantum digital signatures over 90 km of installed optical fiber using a differential phase shift quantum key distribution system,” Opt. Lett. 41(21), 4883–4886 (2016). [Crossref] . R. J. Collins, R. Amiri, M. Fujiwara, T. Honjo, K. Shimizu, K. Tamaki, M. Takeoka, M. Sasaki, E. Andersson, and G. S. Buller, “Experimental demonstration of quantum digital signatures over 43 dB channel loss using differential phase shift quantum key distribution,” Sci. Rep. 7(1), 3235 (2017). [Crossref] . R. J. Donaldson, L. Mazzarella, U. Zanforlin, R. J. Collins, J. Jeffers, and G. S. Buller, “Quantum state correction using a measurement-based feedforward mechanism,” Phys. Rev. A 100(2), 023840 (2019). [Crossref] . J. Thomas, M. Heinrich, P. Zeil, V. Hilbert, K. Rademaker, R. Riedel, S. Ringleb, C. Dubs, J.-P. Ruske, S. Nolte, and A. Tünnermann, “Laser direct writing: Enabling monolithic and hybrid integrated solutions on the lithium niobate platform,” Phys. Status Solidi A 208(2), 276–283 (2011). [Crossref] . F. Najafi, J. Mower, N. C. Harris, F. Bellei, A. Dane, C. Lee, X. Hu, P. Kharel, F. Marsili, S. Assefa, K. K. Berggren, and D. Englund, “On-chip detection of non-classical light by scalable integration of single-photon detectors,” Nat. Commun. 6(1), 5873 (2015). [Crossref] . U. Zanforlin, R. J. Donaldson, R. J. Collins, and G. S. Buller, “Analysis of the effects of imperfections in an optical heterodyne quantum random-number generator,” Phys. Rev. A 99(5), 052305 (2019). [Crossref] . D. Malik, G. Kaushik, and A. Wason, “Performance evaluation of hybrid optical amplifiers in WDM system,” J. Opt. 47(3), 396–404 (2018). [Crossref] . 2019 (3). F. Flamini, N. Spagnolo, and F. Sciarrino, “Photonic quantum information processing: a review,” Rep. Prog. Phys. 82(1), 016001 (2019). [Crossref] R. J. Donaldson, L. Mazzarella, U. Zanforlin, R. J. Collins, J. Jeffers, and G. S. Buller, “Quantum state correction using a measurement-based feedforward mechanism,” Phys. Rev. A 100(2), 023840 (2019). [Crossref] U. Zanforlin, R. J. Donaldson, R. J. Collins, and G. S. Buller, “Analysis of the effects of imperfections in an optical heterodyne quantum random-number generator,” Phys. Rev. A 99(5), 052305 (2019). [Crossref] 2018 (3). D. Malik, G. Kaushik, and A. Wason, “Performance evaluation of hybrid optical amplifiers in WDM system,” J. Opt. 47(3), 396–404 (2018). [Crossref] Y. Wang, L. Hermann Negri, I. Chiamenti, I. Abe, and H. J. Kalinowski, “Automated System for Femtosecond Laser Writing of Photonic Structures,” J. Control. Autom. Electr. Syst. 29(2), 153–162 (2018). [Crossref] R. J. Donaldson, L. Mazzarella, R. J. Collins, J. Jeffers, and G. S. Buller, “A high-gain and high-fidelity coherent state comparison amplifier,” Commun. Phys. 1(1), 54 (2018). [Crossref] 2017 (3). J. Bryant, R. R. Thomson, and M. J. Withford, “Focus issue introduction: recent advances in astrophotonics,” Opt. Express 25(17), 19966–19967 (2017). [Crossref] S. Mukherjee, D. Mogilevtsev, G. Y. Slepyan, T. H. Doherty, R. R. Thomson, and N. Korolkova, “Dissipatively coupled waveguide networks for coherent diffusive photonics,” Nat. Commun. 8(1), 1909 (2017). [Crossref] R. J. Collins, R. Amiri, M. Fujiwara, T. Honjo, K. Shimizu, K. Tamaki, M. Takeoka, M. Sasaki, E. Andersson, and G. S. Buller, “Experimental demonstration of quantum digital signatures over 43 dB channel loss using differential phase shift quantum key distribution,” Sci. Rep. 7(1), 3235 (2017). [Crossref] 2016 (5). R. J. Collins, R. Amiri, M. Fujiwara, T. Honjo, K. Shimizu, K. Tamaki, M. Takeoka, E. Andersson, G. S. Buller, and M. Sasaki, “Experimental transmission of quantum digital signatures over 90 km of installed optical fiber using a differential phase shift quantum key distribution system,” Opt. Lett. 41(21), 4883–4886 (2016). [Crossref] G. Corrielli, A. Seri, M. Mazzera, R. Osellame, and H. de Riedmatten, “Integrated Optical Memory Based on Laser-Written Waveguides,” Phys. Rev. Appl. 5(5), 054013 (2016). [Crossref] M. Rosati, A. Mari, and V. Giovannetti, “Coherent-state discrimination via nonheralded probabilistic amplification,” Phys. Rev. A 93(6), 062315 (2016). [Crossref] A. Orieux and E. Diamanti, “Recent advances on integrated quantum communications,” J. Opt. 18(8), 083002 (2016). [Crossref] J. Ho, A. Boston, M. Palsson, and G. Pryde, “Experimental noiseless linear amplification using weak measurements,” New J. Phys. 18(9), 093026 (2016). [Crossref] 2015 (3). R. J. Donaldson, R. J. Collins, E. Eleftheriadou, S. M. Barnett, J. Jeffers, and G. S. Buller, “Experimental Implementation of a Quantum Optical State Comparison Amplifier,” Phys. Rev. Lett. 114(12), 120505 (2015). [Crossref] R. Heilmann, M. Gr?fe, S. Nolte, and A. Szameit, “Arbitrary photonic wave plate operations on chip: Realizing Hadamard, Pauli-X, and rotation gates for polarisation qubits,” Sci. Rep. 4(1), 4118 (2015). [Crossref] F. Najafi, J. Mower, N. C. Harris, F. Bellei, A. Dane, C. Lee, X. Hu, P. Kharel, F. Marsili, S. Assefa, K. K. Berggren, and D. Englund, “On-chip detection of non-classical light by scalable integration of single-photon detectors,” Nat. Commun. 6(1), 5873 (2015). [Crossref] 2014 (2). G. Corrielli, A. Crespi, R. Geremia, R. Ramponi, L. Sansoni, A. Santinelli, P. Mataloni, F. Sciarrino, and R. Osellame, “Rotated waveplates in integrated waveguide optics,” Nat. Commun. 5(1), 4249 (2014). [Crossref] D. Choudhury, J. R. Macdonald, and A. K. Kar, “Ultrafast laser inscription: perspectives on future integrated applications,” Laser Photonics Rev. 8(6), 827–846 (2014). [Crossref] 2013 (6). M. Tillmann, B. Daki?, R. Heilmann, S. Nolte, A. Szameit, and P. Walther, “Experimental boson sampling,” Nat. Photonics 7(7), 540–544 (2013). [Crossref] E. Eleftheriadou, S. M. Barnett, and J. Jeffers, “Quantum Optical State Comparison Amplifier,” Phys. Rev. Lett. 111(21), 213601 (2013). [Crossref] S. Pandey, Z. Jiang, J. Combes, and C. M. Caves, “Quantum limits on probabilistic amplifiers,” Phys. Rev. A 88(3), 033852 (2013). [Crossref] S. Kocsis, G. Y. Xiang, T. C. Ralph, and G. J. Pryde, “Heralded noiseless amplification of a photon polarization qubit,” Nat. Phys. 9(1), 23–28 (2013). [Crossref] N. Bruno, V. Pini, A. Martin, and R. T. Thew, “A complete characterization of the heralded noiseless amplification of photons,” New J. Phys. 15(9), 093002 (2013). [Crossref] A. Crespi, R. Osellame, R. Ramponi, V. Giovannetti, R. Fazio, L. Sansoni, F. De Nicola, F. Sciarrino, and P. Mataloni, “Anderson localization of entangled photons in an integrated quantum walk,” Nat. Photonics 7(4), 322–328 (2013). [Crossref] 2012 (4). L. A. Fernandes, J. R. Grenier, P. R. Herman, J. S. Aitchison, and P. V. S. Marques, “Stress induced birefringence tuning in femtosecond laser fabricated waveguides in fused silica,” Opt. Express 20(22), 24103–24114 (2012). [Crossref] C. I. Osorio, N. Bruno, N. Sangouard, H. Zbinden, N. Gisin, and R. T. Thew, “Heralded photon amplification for quantum communication,” Phys. Rev. A 86(2), 023815 (2012). [Crossref] V. Dunjko and E. Andersson, “Truly noiseless probabilistic amplification,” Phys. Rev. A 86(4), 042322 (2012). [Crossref] S. Tanzilli, A. Martin, F. Kaiser, M. De Micheli, O. Alibart, and D. Ostrowsky, “On the genesis and evolution of Integrated Quantum Optics,” Laser Photonics Rev. 6(1), 115–143 (2012). [Crossref] 2011 (5). J. Jeffers, “Optical amplifier-powered quantum optical amplification,” Phys. Rev. A 83(5), 053818 (2011). [Crossref] L. A. Fernandes, J. R. Grenier, P. R. Herman, J. S. Aitchison, and P. V. S. Marques, “Femtosecond laser fabrication of birefringent directional couplers as polarization beam splitters in fused silica,” Opt. Express 19(13), 11992–11999 (2011). [Crossref] A. Zavatta, J. Fiurá?ek, and M. Bellini, “A high-fidelity noiseless amplifier for quantum light states,” Nat. Photonics 5(1), 52–56 (2011). [Crossref] A. Crespi, R. Ramponi, R. Osellame, L. Sansoni, I. Bongioanni, F. Sciarrino, G. Vallone, and P. Mataloni, “Integrated photonic quantum gates for polarization qubits,” Nat. Commun. 2(1), 566 (2011). [Crossref] J. Thomas, M. Heinrich, P. Zeil, V. Hilbert, K. Rademaker, R. Riedel, S. Ringleb, C. Dubs, J.-P. Ruske, S. Nolte, and A. Tünnermann, “Laser direct writing: Enabling monolithic and hybrid integrated solutions on the lithium niobate platform,” Phys. Status Solidi A 208(2), 276–283 (2011). [Crossref] 2010 (6). M. A. Usuga, C. R. Müller, C. Wittmann, P. Marek, R. Filip, C. Marquardt, G. Leuchs, and U. L. Andersen, “Noise-powered probabilistic concentration of phase information,” Nat. Phys. 6(10), 767–771 (2010). [Crossref] P. Marek and R. Filip, “Coherent-state phase concentration by quantum probabilistic amplification,” Phys. Rev. A 81(2), 022302 (2010). [Crossref] G. Y. Xiang, T. C. Ralph, A. P. Lund, N. Walk, and G. J. Pryde, “Heralded noiseless linear amplification and distillation of entanglement,” Nat. Photonics 4(5), 316–319 (2010). [Crossref] F. Ferreyrol, M. Barbieri, R. Blandino, S. Fossier, R. Tualle-Brouri, and P. Grangier, “Implementation of a Nondeterministic Optical Noiseless Amplifier,” Phys. Rev. Lett. 104(12), 123603 (2010). [Crossref] J. Jeffers, “Nondeterministic amplifier for two-photon superpositions,” Phys. Rev. A 82(6), 063828 (2010). [Crossref] N. Gisin, S. Pironio, and N. Sangouard, “Proposal for Implementing Device-Independent Quantum Key Distribution Based on a Heralded Qubit Amplifier,” Phys. Rev. Lett. 105(7), 070501 (2010). [Crossref] 2009 (2). V. Scarani, H. Bechmann-Pasquinucci, N. J. Cerf, M. Du?ek, N. Lütkenhaus, and M. Peev, “The security of practical quantum key distribution,” Rev. Mod. Phys. 81(3), 1301–1350 (2009). [Crossref] J. Fiurá?ek, “Engineering quantum operations on traveling light beams by multiple photon addition and subtraction,” Phys. Rev. A 80(5), 053822 (2009). [Crossref] 2008 (1). R. R. Gattass and E. Mazur, “Femtosecond laser micromachining in transparent materials,” Nat. Photonics 2(4), 219–225 (2008). [Crossref] 2005 (1). M. Ams, G. Marshall, D. Spence, and M. Withford, “Slit beam shaping method for femtosecond laser direct-write fabrication of symmetric waveguides in bulk glasses,” Opt. Express 13(15), 5676–5681 (2005). [Crossref] 2002 (1). N. Gisin, G. Ribordy, W. Tittel, and H. Zbinden, “Quantum cryptography,” Rev. Mod. Phys. 74(1), 145–195 (2002). [Crossref] 2001 (1). A. M. Streltsov and N. F. Borrelli, “Fabrication and analysis of a directional coupler written in glass by nanojoule femtosecond laser pulses,” Opt. Lett. 26(1), 42–43 (2001). [Crossref] 2000 (1). R. J. Hughes, G. L. Morgan, and C. G. Peterson, “Quantum key distribution over a 48 km optical fibre network,” J. Mod. Opt. 47(2-3), 533–547 (2000). [Crossref] 1998 (1). D. T. Pegg, L. S. Phillips, and S. M. Barnett, “Optical State Truncation by Projection Synthesis,” Phys. Rev. Lett. 81(8), 1604–1606 (1998). [Crossref] 1996 (1). K. M. Davis, K. Miura, N. Sugimoto, and K. Hirao, “Writing waveguides in glass with a femtosecond laser,” Opt. Lett. 21(21), 1729–1731 (1996). [Crossref] 1982 (2). W. Wootters and W. Zurek, “A Single Quantum Cannot Be Cloned,” Nature 299(5886), 802–803 (1982). [Crossref] C. M. Caves, “Quantum limits on noise in linear amplifiers,” Phys. Rev. D 26(8), 1817–1839 (1982). [Crossref] Abe, I.. Y. Wang, L. Hermann Negri, I. Chiamenti, I. Abe, and H. J. Kalinowski, “Automated System for Femtosecond Laser Writing of Photonic Structures,” J. Control. Autom. Electr. Syst. 29(2), 153–162 (2018). [Crossref] Aitchison, J. S.. L. A. Fernandes, J. R. Grenier, P. R. Herman, J. S. Aitchison, and P. V. S. Marques, “Stress induced birefringence tuning in femtosecond laser fabricated waveguides in fused silica,” Opt. Express 20(22), 24103–24114 (2012). [Crossref] L. A. Fernandes, J. R. Grenier, P. R. Herman, J. S. Aitchison, and P. V. S. Marques, “Femtosecond laser fabrication of birefringent directional couplers as polarization beam splitters in fused silica,” Opt. Express 19(13), 11992–11999 (2011). [Crossref] Alibart, O.. S. Tanzilli, A. Martin, F. Kaiser, M. De Micheli, O. Alibart, and D. Ostrowsky, “On the genesis and evolution of Integrated Quantum Optics,” Laser Photonics Rev. 6(1), 115–143 (2012). [Crossref] Amiri, R.. R. J. Collins, R. Amiri, M. Fujiwara, T. Honjo, K. Shimizu, K. Tamaki, M. Takeoka, M. Sasaki, E. Andersson, and G. S. Buller, “Experimental demonstration of quantum digital signatures over 43 dB channel loss using differential phase shift quantum key distribution,” Sci. Rep. 7(1), 3235 (2017). [Crossref] R. J. Collins, R. Amiri, M. Fujiwara, T. Honjo, K. Shimizu, K. Tamaki, M. Takeoka, E. Andersson, G. S. Buller, and M. Sasaki, “Experimental transmission of quantum digital signatures over 90 km of installed optical fiber using a differential phase shift quantum key distribution system,” Opt. Lett. 41(21), 4883–4886 (2016). [Crossref] Ams, M.. M. Ams, G. Marshall, D. Spence, and M. Withford, “Slit beam shaping method for femtosecond laser direct-write fabrication of symmetric waveguides in bulk glasses,” Opt. Express 13(15), 5676–5681 (2005). [Crossref] Andersen, U. L.. M. A. Usuga, C. R. Müller, C. Wittmann, P. Marek, R. Filip, C. Marquardt, G. Leuchs, and U. L. Andersen, “Noise-powered probabilistic concentration of phase information,” Nat. 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