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Kai Pang - One of the best experts on this subject based on the ideXlab platform.
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experimental mitigation of atmospheric Turbulence Effect using pre signal combining for uni and bi directional free space optical links with two 100 gbit s oam multiplexed channels
Journal of Lightwave Technology, 2020Co-Authors: Haoqian Song, Robert Bock, Brittany Lynn, Moshe Tur, Alan E Willner, Hao Song, Runzhou Zhang, Karapet Manukyan, Zhe Zhao, Kai PangAbstract:In this paper, we experimentally demonstrate the mitigation of atmospheric Turbulence Effects using phase patterns that apply the inverse transmission matrix for pre-compensation in the 200-Gbit/s free-space orbital angular momentum (OAM) multiplexed optical link. In this link, two OAM channels are multiplexed, each carrying a 100-Gbit/s quadrature-phase shift keying (QPSK) signal. In the uni-directional (forward) link, a combination of two OAM modes is generated using a designed phase pattern in each of the two channels. After the two channels are multiplexed, each OAM mode will carry the combination of signals from both channels. Such beams could perform the inverse function of Turbulence-induced crosstalk. We explore the link performances including crosstalk and bit error rate (BER) under 6 different Turbulence realizations with a Fried parameter of 1-mm. We find the following: (a) the inter-channel crosstalk is reduced by up to 21 dB; (b) the inter-channel crosstalk is below −10 dB for the 6 Turbulence realizations when the compensation is applied; (c) a BER below the FEC limit could be realized for the 6 Turbulence realizations with an optical signal-to-noise ratio (OSNR) of 16.8 dB for the uni-directional link with the compensation. Moreover, the post-compensation is also investigated for the two 100-Gbit/s OAM-multiplexed backward channels in the bi-directional link. For the backward channels, the phase patterns are used to mitigate Turbulence-induced crosstalk at the receiver for backward channels, and the inter-channel crosstalk is reduced by up to 16 dB.
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mitigation for Turbulence Effects in a 40 gbit s orbital angular momentum multiplexed free space optical link between a ground station and a retro reflecting uav using mimo equalization
Optics Letters, 2019Co-Authors: Runzhou Zhang, Haoqian Song, Hao Song, Zhe Zhao, Kai Pang, Peicheng Liao, Yinwen Cao, Yifan Zhao, Cong Liu, Ahmed AlmaimanAbstract:We experimentally demonstrate Turbulence Effect mitigation in a 100-m round-trip orbital-angular-momentum (OAM)-multiplexed free-space optical communication link between a ground transmitter and a ground receiver via a retro-reflecting hovering unmanned aerial vehicle (UAV) using multiple-input–multiple-output (MIMO) equalization. In our demonstration, two OAM beams at 1550 nm are transmitted to the UAV through emulated atmospheric Turbulence, each carrying a 20-Gbit/s signal. 2×2 MIMO equalization is used to mitigate Turbulence-induced crosstalk between the two OAM channels. Bit error rates below the 7% overhead forward error correction limit of 3.8×10−3 are achieved for both channels.
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Experimental Mitigation of Atmospheric Turbulence Effect using Pre-Channel Combining Phase Patterns for Uni- and Bi-Directional Free-Space Optical Links with two 100-Gbit/s OAM-Multiplexed Channels
2019 Optical Fiber Communications Conference and Exhibition (OFC), 2019Co-Authors: Haoqian Song, Hao Song, Runzhou Zhang, Karapet Manukyan, Zhe Zhao, Kai Pang, Cong Liu, Ahmed Almaiman, Long Li, Robert BockAbstract:We experimentally demonstrate the mitigation of atmospheric Turbulence Effects using pre-channel combining phase patterns in both uni- and bi-directional free-space 200-Gbit/s orbital angular momentum multiplexed optical links. The inter-channel crosstalk is reduced by up to 18-dB.
Haoqian Song - One of the best experts on this subject based on the ideXlab platform.
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experimental mitigation of atmospheric Turbulence Effect using pre signal combining for uni and bi directional free space optical links with two 100 gbit s oam multiplexed channels
Journal of Lightwave Technology, 2020Co-Authors: Haoqian Song, Robert Bock, Brittany Lynn, Moshe Tur, Alan E Willner, Hao Song, Runzhou Zhang, Karapet Manukyan, Zhe Zhao, Kai PangAbstract:In this paper, we experimentally demonstrate the mitigation of atmospheric Turbulence Effects using phase patterns that apply the inverse transmission matrix for pre-compensation in the 200-Gbit/s free-space orbital angular momentum (OAM) multiplexed optical link. In this link, two OAM channels are multiplexed, each carrying a 100-Gbit/s quadrature-phase shift keying (QPSK) signal. In the uni-directional (forward) link, a combination of two OAM modes is generated using a designed phase pattern in each of the two channels. After the two channels are multiplexed, each OAM mode will carry the combination of signals from both channels. Such beams could perform the inverse function of Turbulence-induced crosstalk. We explore the link performances including crosstalk and bit error rate (BER) under 6 different Turbulence realizations with a Fried parameter of 1-mm. We find the following: (a) the inter-channel crosstalk is reduced by up to 21 dB; (b) the inter-channel crosstalk is below −10 dB for the 6 Turbulence realizations when the compensation is applied; (c) a BER below the FEC limit could be realized for the 6 Turbulence realizations with an optical signal-to-noise ratio (OSNR) of 16.8 dB for the uni-directional link with the compensation. Moreover, the post-compensation is also investigated for the two 100-Gbit/s OAM-multiplexed backward channels in the bi-directional link. For the backward channels, the phase patterns are used to mitigate Turbulence-induced crosstalk at the receiver for backward channels, and the inter-channel crosstalk is reduced by up to 16 dB.
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mitigation for Turbulence Effects in a 40 gbit s orbital angular momentum multiplexed free space optical link between a ground station and a retro reflecting uav using mimo equalization
Optics Letters, 2019Co-Authors: Runzhou Zhang, Haoqian Song, Hao Song, Zhe Zhao, Kai Pang, Peicheng Liao, Yinwen Cao, Yifan Zhao, Cong Liu, Ahmed AlmaimanAbstract:We experimentally demonstrate Turbulence Effect mitigation in a 100-m round-trip orbital-angular-momentum (OAM)-multiplexed free-space optical communication link between a ground transmitter and a ground receiver via a retro-reflecting hovering unmanned aerial vehicle (UAV) using multiple-input–multiple-output (MIMO) equalization. In our demonstration, two OAM beams at 1550 nm are transmitted to the UAV through emulated atmospheric Turbulence, each carrying a 20-Gbit/s signal. 2×2 MIMO equalization is used to mitigate Turbulence-induced crosstalk between the two OAM channels. Bit error rates below the 7% overhead forward error correction limit of 3.8×10−3 are achieved for both channels.
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Experimental Mitigation of Atmospheric Turbulence Effect using Pre-Channel Combining Phase Patterns for Uni- and Bi-Directional Free-Space Optical Links with two 100-Gbit/s OAM-Multiplexed Channels
2019 Optical Fiber Communications Conference and Exhibition (OFC), 2019Co-Authors: Haoqian Song, Hao Song, Runzhou Zhang, Karapet Manukyan, Zhe Zhao, Kai Pang, Cong Liu, Ahmed Almaiman, Long Li, Robert BockAbstract:We experimentally demonstrate the mitigation of atmospheric Turbulence Effects using pre-channel combining phase patterns in both uni- and bi-directional free-space 200-Gbit/s orbital angular momentum multiplexed optical links. The inter-channel crosstalk is reduced by up to 18-dB.
Runzhou Zhang - One of the best experts on this subject based on the ideXlab platform.
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experimental mitigation of atmospheric Turbulence Effect using pre signal combining for uni and bi directional free space optical links with two 100 gbit s oam multiplexed channels
Journal of Lightwave Technology, 2020Co-Authors: Haoqian Song, Robert Bock, Brittany Lynn, Moshe Tur, Alan E Willner, Hao Song, Runzhou Zhang, Karapet Manukyan, Zhe Zhao, Kai PangAbstract:In this paper, we experimentally demonstrate the mitigation of atmospheric Turbulence Effects using phase patterns that apply the inverse transmission matrix for pre-compensation in the 200-Gbit/s free-space orbital angular momentum (OAM) multiplexed optical link. In this link, two OAM channels are multiplexed, each carrying a 100-Gbit/s quadrature-phase shift keying (QPSK) signal. In the uni-directional (forward) link, a combination of two OAM modes is generated using a designed phase pattern in each of the two channels. After the two channels are multiplexed, each OAM mode will carry the combination of signals from both channels. Such beams could perform the inverse function of Turbulence-induced crosstalk. We explore the link performances including crosstalk and bit error rate (BER) under 6 different Turbulence realizations with a Fried parameter of 1-mm. We find the following: (a) the inter-channel crosstalk is reduced by up to 21 dB; (b) the inter-channel crosstalk is below −10 dB for the 6 Turbulence realizations when the compensation is applied; (c) a BER below the FEC limit could be realized for the 6 Turbulence realizations with an optical signal-to-noise ratio (OSNR) of 16.8 dB for the uni-directional link with the compensation. Moreover, the post-compensation is also investigated for the two 100-Gbit/s OAM-multiplexed backward channels in the bi-directional link. For the backward channels, the phase patterns are used to mitigate Turbulence-induced crosstalk at the receiver for backward channels, and the inter-channel crosstalk is reduced by up to 16 dB.
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mitigation for Turbulence Effects in a 40 gbit s orbital angular momentum multiplexed free space optical link between a ground station and a retro reflecting uav using mimo equalization
Optics Letters, 2019Co-Authors: Runzhou Zhang, Haoqian Song, Hao Song, Zhe Zhao, Kai Pang, Peicheng Liao, Yinwen Cao, Yifan Zhao, Cong Liu, Ahmed AlmaimanAbstract:We experimentally demonstrate Turbulence Effect mitigation in a 100-m round-trip orbital-angular-momentum (OAM)-multiplexed free-space optical communication link between a ground transmitter and a ground receiver via a retro-reflecting hovering unmanned aerial vehicle (UAV) using multiple-input–multiple-output (MIMO) equalization. In our demonstration, two OAM beams at 1550 nm are transmitted to the UAV through emulated atmospheric Turbulence, each carrying a 20-Gbit/s signal. 2×2 MIMO equalization is used to mitigate Turbulence-induced crosstalk between the two OAM channels. Bit error rates below the 7% overhead forward error correction limit of 3.8×10−3 are achieved for both channels.
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Experimental Mitigation of Atmospheric Turbulence Effect using Pre-Channel Combining Phase Patterns for Uni- and Bi-Directional Free-Space Optical Links with two 100-Gbit/s OAM-Multiplexed Channels
2019 Optical Fiber Communications Conference and Exhibition (OFC), 2019Co-Authors: Haoqian Song, Hao Song, Runzhou Zhang, Karapet Manukyan, Zhe Zhao, Kai Pang, Cong Liu, Ahmed Almaiman, Long Li, Robert BockAbstract:We experimentally demonstrate the mitigation of atmospheric Turbulence Effects using pre-channel combining phase patterns in both uni- and bi-directional free-space 200-Gbit/s orbital angular momentum multiplexed optical links. The inter-channel crosstalk is reduced by up to 18-dB.
Hao Song - One of the best experts on this subject based on the ideXlab platform.
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experimental mitigation of atmospheric Turbulence Effect using pre signal combining for uni and bi directional free space optical links with two 100 gbit s oam multiplexed channels
Journal of Lightwave Technology, 2020Co-Authors: Haoqian Song, Robert Bock, Brittany Lynn, Moshe Tur, Alan E Willner, Hao Song, Runzhou Zhang, Karapet Manukyan, Zhe Zhao, Kai PangAbstract:In this paper, we experimentally demonstrate the mitigation of atmospheric Turbulence Effects using phase patterns that apply the inverse transmission matrix for pre-compensation in the 200-Gbit/s free-space orbital angular momentum (OAM) multiplexed optical link. In this link, two OAM channels are multiplexed, each carrying a 100-Gbit/s quadrature-phase shift keying (QPSK) signal. In the uni-directional (forward) link, a combination of two OAM modes is generated using a designed phase pattern in each of the two channels. After the two channels are multiplexed, each OAM mode will carry the combination of signals from both channels. Such beams could perform the inverse function of Turbulence-induced crosstalk. We explore the link performances including crosstalk and bit error rate (BER) under 6 different Turbulence realizations with a Fried parameter of 1-mm. We find the following: (a) the inter-channel crosstalk is reduced by up to 21 dB; (b) the inter-channel crosstalk is below −10 dB for the 6 Turbulence realizations when the compensation is applied; (c) a BER below the FEC limit could be realized for the 6 Turbulence realizations with an optical signal-to-noise ratio (OSNR) of 16.8 dB for the uni-directional link with the compensation. Moreover, the post-compensation is also investigated for the two 100-Gbit/s OAM-multiplexed backward channels in the bi-directional link. For the backward channels, the phase patterns are used to mitigate Turbulence-induced crosstalk at the receiver for backward channels, and the inter-channel crosstalk is reduced by up to 16 dB.
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mitigation for Turbulence Effects in a 40 gbit s orbital angular momentum multiplexed free space optical link between a ground station and a retro reflecting uav using mimo equalization
Optics Letters, 2019Co-Authors: Runzhou Zhang, Haoqian Song, Hao Song, Zhe Zhao, Kai Pang, Peicheng Liao, Yinwen Cao, Yifan Zhao, Cong Liu, Ahmed AlmaimanAbstract:We experimentally demonstrate Turbulence Effect mitigation in a 100-m round-trip orbital-angular-momentum (OAM)-multiplexed free-space optical communication link between a ground transmitter and a ground receiver via a retro-reflecting hovering unmanned aerial vehicle (UAV) using multiple-input–multiple-output (MIMO) equalization. In our demonstration, two OAM beams at 1550 nm are transmitted to the UAV through emulated atmospheric Turbulence, each carrying a 20-Gbit/s signal. 2×2 MIMO equalization is used to mitigate Turbulence-induced crosstalk between the two OAM channels. Bit error rates below the 7% overhead forward error correction limit of 3.8×10−3 are achieved for both channels.
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Experimental Mitigation of Atmospheric Turbulence Effect using Pre-Channel Combining Phase Patterns for Uni- and Bi-Directional Free-Space Optical Links with two 100-Gbit/s OAM-Multiplexed Channels
2019 Optical Fiber Communications Conference and Exhibition (OFC), 2019Co-Authors: Haoqian Song, Hao Song, Runzhou Zhang, Karapet Manukyan, Zhe Zhao, Kai Pang, Cong Liu, Ahmed Almaiman, Long Li, Robert BockAbstract:We experimentally demonstrate the mitigation of atmospheric Turbulence Effects using pre-channel combining phase patterns in both uni- and bi-directional free-space 200-Gbit/s orbital angular momentum multiplexed optical links. The inter-channel crosstalk is reduced by up to 18-dB.
Zhe Zhao - One of the best experts on this subject based on the ideXlab platform.
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experimental mitigation of atmospheric Turbulence Effect using pre signal combining for uni and bi directional free space optical links with two 100 gbit s oam multiplexed channels
Journal of Lightwave Technology, 2020Co-Authors: Haoqian Song, Robert Bock, Brittany Lynn, Moshe Tur, Alan E Willner, Hao Song, Runzhou Zhang, Karapet Manukyan, Zhe Zhao, Kai PangAbstract:In this paper, we experimentally demonstrate the mitigation of atmospheric Turbulence Effects using phase patterns that apply the inverse transmission matrix for pre-compensation in the 200-Gbit/s free-space orbital angular momentum (OAM) multiplexed optical link. In this link, two OAM channels are multiplexed, each carrying a 100-Gbit/s quadrature-phase shift keying (QPSK) signal. In the uni-directional (forward) link, a combination of two OAM modes is generated using a designed phase pattern in each of the two channels. After the two channels are multiplexed, each OAM mode will carry the combination of signals from both channels. Such beams could perform the inverse function of Turbulence-induced crosstalk. We explore the link performances including crosstalk and bit error rate (BER) under 6 different Turbulence realizations with a Fried parameter of 1-mm. We find the following: (a) the inter-channel crosstalk is reduced by up to 21 dB; (b) the inter-channel crosstalk is below −10 dB for the 6 Turbulence realizations when the compensation is applied; (c) a BER below the FEC limit could be realized for the 6 Turbulence realizations with an optical signal-to-noise ratio (OSNR) of 16.8 dB for the uni-directional link with the compensation. Moreover, the post-compensation is also investigated for the two 100-Gbit/s OAM-multiplexed backward channels in the bi-directional link. For the backward channels, the phase patterns are used to mitigate Turbulence-induced crosstalk at the receiver for backward channels, and the inter-channel crosstalk is reduced by up to 16 dB.
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mitigation for Turbulence Effects in a 40 gbit s orbital angular momentum multiplexed free space optical link between a ground station and a retro reflecting uav using mimo equalization
Optics Letters, 2019Co-Authors: Runzhou Zhang, Haoqian Song, Hao Song, Zhe Zhao, Kai Pang, Peicheng Liao, Yinwen Cao, Yifan Zhao, Cong Liu, Ahmed AlmaimanAbstract:We experimentally demonstrate Turbulence Effect mitigation in a 100-m round-trip orbital-angular-momentum (OAM)-multiplexed free-space optical communication link between a ground transmitter and a ground receiver via a retro-reflecting hovering unmanned aerial vehicle (UAV) using multiple-input–multiple-output (MIMO) equalization. In our demonstration, two OAM beams at 1550 nm are transmitted to the UAV through emulated atmospheric Turbulence, each carrying a 20-Gbit/s signal. 2×2 MIMO equalization is used to mitigate Turbulence-induced crosstalk between the two OAM channels. Bit error rates below the 7% overhead forward error correction limit of 3.8×10−3 are achieved for both channels.
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Experimental Mitigation of Atmospheric Turbulence Effect using Pre-Channel Combining Phase Patterns for Uni- and Bi-Directional Free-Space Optical Links with two 100-Gbit/s OAM-Multiplexed Channels
2019 Optical Fiber Communications Conference and Exhibition (OFC), 2019Co-Authors: Haoqian Song, Hao Song, Runzhou Zhang, Karapet Manukyan, Zhe Zhao, Kai Pang, Cong Liu, Ahmed Almaiman, Long Li, Robert BockAbstract:We experimentally demonstrate the mitigation of atmospheric Turbulence Effects using pre-channel combining phase patterns in both uni- and bi-directional free-space 200-Gbit/s orbital angular momentum multiplexed optical links. The inter-channel crosstalk is reduced by up to 18-dB.