The Experts below are selected from a list of 88614 Experts worldwide ranked by ideXlab platform
Masahide Sasaki - One of the best experts on this subject based on the ideXlab platform.
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experimental Transmission of quantum digital signatures over 90 km of installed optical fiber using a differential phase shift quantum key distribution system
2016Co-Authors: Robert J Collins, Ryan Amiri, Mikio Fujiwara, Toshimori Honjo, Kaoru Shimizu, Kiyoshi Tamaki, Masahiro Takeoka, Erika Andersson, Gerald S Buller, Masahide SasakiAbstract:Quantum digital signatures (QDSs) apply quantum mechanics to the problem of guaranteeing message integrity and non-repudiation with information-theoretical security, which are complementary to the confidentiality realized by quantum key distribution (QKD). Previous experimental demonstrations have been limited to Transmission distances of less than 5 km of optical fiber in a laboratory setting. Here we report, to the best of our knowledge, the first demonstration of QDSs over installed optical fiber, as well as the longest Transmission Link reported to date. This demonstration used a 90 km long differential phase shift QKD to achieve approximately one signed bit per second, an increase in the signature generation rate of several orders of magnitude over previous optical fiber demonstrations.
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experimental Transmission of quantum digital signatures over 90 km of installed optical fiber using a differential phase shift quantum key distribution system
2016Co-Authors: Robert J Collins, Ryan Amiri, Mikio Fujiwara, Toshimori Honjo, Kaoru Shimizu, Kiyoshi Tamaki, Masahiro Takeoka, Erika Andersson, Gerald S Buller, Masahide SasakiAbstract:Quantum digital signatures apply quantum mechanics to the problem of guaranteeing message integrity and non-repudiation with information-theoretical security, which are complementary to the confidentiality realized by quantum key distribution. Previous experimental demonstrations have been limited to Transmission distances of less than 5-km of optical fiber in a laboratory setting. Here we report the first demonstration of quantum digital signatures over installed optical fiber as well as the longest Transmission Link reported to date. This demonstration used a 90-km long differential phase shift quantum key distribution system to achieve approximately one signed bit per second - an increase in the signature generation rate of several orders of magnitude over previous optical fiber demonstrations.
Robert J Collins - One of the best experts on this subject based on the ideXlab platform.
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experimental Transmission of quantum digital signatures over 90 km of installed optical fiber using a differential phase shift quantum key distribution system
2016Co-Authors: Robert J Collins, Ryan Amiri, Mikio Fujiwara, Toshimori Honjo, Kaoru Shimizu, Kiyoshi Tamaki, Masahiro Takeoka, Erika Andersson, Gerald S Buller, Masahide SasakiAbstract:Quantum digital signatures (QDSs) apply quantum mechanics to the problem of guaranteeing message integrity and non-repudiation with information-theoretical security, which are complementary to the confidentiality realized by quantum key distribution (QKD). Previous experimental demonstrations have been limited to Transmission distances of less than 5 km of optical fiber in a laboratory setting. Here we report, to the best of our knowledge, the first demonstration of QDSs over installed optical fiber, as well as the longest Transmission Link reported to date. This demonstration used a 90 km long differential phase shift QKD to achieve approximately one signed bit per second, an increase in the signature generation rate of several orders of magnitude over previous optical fiber demonstrations.
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experimental Transmission of quantum digital signatures over 90 km of installed optical fiber using a differential phase shift quantum key distribution system
2016Co-Authors: Robert J Collins, Ryan Amiri, Mikio Fujiwara, Toshimori Honjo, Kaoru Shimizu, Kiyoshi Tamaki, Masahiro Takeoka, Erika Andersson, Gerald S Buller, Masahide SasakiAbstract:Quantum digital signatures apply quantum mechanics to the problem of guaranteeing message integrity and non-repudiation with information-theoretical security, which are complementary to the confidentiality realized by quantum key distribution. Previous experimental demonstrations have been limited to Transmission distances of less than 5-km of optical fiber in a laboratory setting. Here we report the first demonstration of quantum digital signatures over installed optical fiber as well as the longest Transmission Link reported to date. This demonstration used a 90-km long differential phase shift quantum key distribution system to achieve approximately one signed bit per second - an increase in the signature generation rate of several orders of magnitude over previous optical fiber demonstrations.
B.s. Marks - One of the best experts on this subject based on the ideXlab platform.
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Interchannel Crosstalk Reduction in an Analog Fiber Link Using Dispersion Management
2008Co-Authors: B.s. Marks, Curtis R. Menyuk, A.l. Campillo, F. BucholtzAbstract:It has previously been shown that dispersion compensation can dramatically affect the interchannel crosstalk in a multichannel analog fiber Transmission Link. In this work, we use a genetic algorithm to find five-segment dispersion maps that yield low crosstalk levels over two octaves of microwave-frequency bandwidth when amplitude modulation is used. The genetic algorithm suggests that optimal dispersion maps have low residual dispersion. Despite the genetic algorithm's ability to optimize dispersion maps with many fibers, it is possible to obtain similar crosstalk levels from a simpler two-segment design whose dispersion is fully compensated.
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analysis of interchannel crosstalk in a dispersion managed analog Transmission Link
2006Co-Authors: B.s. Marks, Curtis R. Menyuk, A.l. Campillo, F. BucholtzAbstract:A technique for computing the effect of cross-phase modulation (XPM) on two copropagating analog channels in an optical fiber Link is presented. In this approach, the interaction between the two channels is linearized by keeping the self-phase modulation (SPM) and XPM interactions in the strong optical carrier components only at lowest order and then at the next order, deriving the effect on the modulation components of both channels when the optical carrier is strong relative to the other components of the channel. In contrast to some previously suggested approaches, it is not assumed that the pump is undistorted, and therefore, this method accurately describes distortions due to SPM, XPM, and dispersion management in both channels. This method is easily applied to systems with multiple spans employing dispersion management with loss and gain. The expressions for the received radio frequency power and crosstalk between the two channels when direct detection is used are then provided. Using this approach, new expressions for the amplitude modulation and phase modulation modes of the two channels are derived, and the way they exchange energy when SPM, XPM, and dispersion are all considered is explained. This method yields excellent agreement between theory and experimental data.
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Analysis of interchannel crosstalk in a dispersion-managed analog Transmission Link
2005Co-Authors: B.s. Marks, Curtis R. MenyukAbstract:Using small-signal linearization, we obtain an expression for crosstalk in a dispersion-managed analog Link including loss and gain. Our theory is validated both by full simulation and experimental results.
F. Bucholtz - One of the best experts on this subject based on the ideXlab platform.
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Interchannel Crosstalk Reduction in an Analog Fiber Link Using Dispersion Management
2008Co-Authors: B.s. Marks, Curtis R. Menyuk, A.l. Campillo, F. BucholtzAbstract:It has previously been shown that dispersion compensation can dramatically affect the interchannel crosstalk in a multichannel analog fiber Transmission Link. In this work, we use a genetic algorithm to find five-segment dispersion maps that yield low crosstalk levels over two octaves of microwave-frequency bandwidth when amplitude modulation is used. The genetic algorithm suggests that optimal dispersion maps have low residual dispersion. Despite the genetic algorithm's ability to optimize dispersion maps with many fibers, it is possible to obtain similar crosstalk levels from a simpler two-segment design whose dispersion is fully compensated.
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analysis of interchannel crosstalk in a dispersion managed analog Transmission Link
2006Co-Authors: B.s. Marks, Curtis R. Menyuk, A.l. Campillo, F. BucholtzAbstract:A technique for computing the effect of cross-phase modulation (XPM) on two copropagating analog channels in an optical fiber Link is presented. In this approach, the interaction between the two channels is linearized by keeping the self-phase modulation (SPM) and XPM interactions in the strong optical carrier components only at lowest order and then at the next order, deriving the effect on the modulation components of both channels when the optical carrier is strong relative to the other components of the channel. In contrast to some previously suggested approaches, it is not assumed that the pump is undistorted, and therefore, this method accurately describes distortions due to SPM, XPM, and dispersion management in both channels. This method is easily applied to systems with multiple spans employing dispersion management with loss and gain. The expressions for the received radio frequency power and crosstalk between the two channels when direct detection is used are then provided. Using this approach, new expressions for the amplitude modulation and phase modulation modes of the two channels are derived, and the way they exchange energy when SPM, XPM, and dispersion are all considered is explained. This method yields excellent agreement between theory and experimental data.
Curtis R. Menyuk - One of the best experts on this subject based on the ideXlab platform.
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Interchannel Crosstalk Reduction in an Analog Fiber Link Using Dispersion Management
2008Co-Authors: B.s. Marks, Curtis R. Menyuk, A.l. Campillo, F. BucholtzAbstract:It has previously been shown that dispersion compensation can dramatically affect the interchannel crosstalk in a multichannel analog fiber Transmission Link. In this work, we use a genetic algorithm to find five-segment dispersion maps that yield low crosstalk levels over two octaves of microwave-frequency bandwidth when amplitude modulation is used. The genetic algorithm suggests that optimal dispersion maps have low residual dispersion. Despite the genetic algorithm's ability to optimize dispersion maps with many fibers, it is possible to obtain similar crosstalk levels from a simpler two-segment design whose dispersion is fully compensated.
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analysis of interchannel crosstalk in a dispersion managed analog Transmission Link
2006Co-Authors: B.s. Marks, Curtis R. Menyuk, A.l. Campillo, F. BucholtzAbstract:A technique for computing the effect of cross-phase modulation (XPM) on two copropagating analog channels in an optical fiber Link is presented. In this approach, the interaction between the two channels is linearized by keeping the self-phase modulation (SPM) and XPM interactions in the strong optical carrier components only at lowest order and then at the next order, deriving the effect on the modulation components of both channels when the optical carrier is strong relative to the other components of the channel. In contrast to some previously suggested approaches, it is not assumed that the pump is undistorted, and therefore, this method accurately describes distortions due to SPM, XPM, and dispersion management in both channels. This method is easily applied to systems with multiple spans employing dispersion management with loss and gain. The expressions for the received radio frequency power and crosstalk between the two channels when direct detection is used are then provided. Using this approach, new expressions for the amplitude modulation and phase modulation modes of the two channels are derived, and the way they exchange energy when SPM, XPM, and dispersion are all considered is explained. This method yields excellent agreement between theory and experimental data.
-
Analysis of interchannel crosstalk in a dispersion-managed analog Transmission Link
2005Co-Authors: B.s. Marks, Curtis R. MenyukAbstract:Using small-signal linearization, we obtain an expression for crosstalk in a dispersion-managed analog Link including loss and gain. Our theory is validated both by full simulation and experimental results.
