This Letter proposes a high-security modulation scheme for optical transmission systems.By using multi-constellation shaping and asymmetric encryption,the information security can be enhanced and quantum computer crac...This Letter proposes a high-security modulation scheme for optical transmission systems.By using multi-constellation shaping and asymmetric encryption,the information security can be enhanced and quantum computer cracking can be effectively resisted.Three-dimensional(3D)carrier-less amplitude phase modulation is utilized to superposition and transmit 3D signals.Experimental verification is conducted using a seven-core weakly coupled fiber platform.The results demonstrate that the proposed scheme can effectively protect the system from any illegal attacker.展开更多
We present an all-optical nonreturn-to-zero/return-to-zero （NRZ/RZ） to carrier-suppressed return-to-zero （CSRZ） format conversion scheme for differential phase-shift keying （DPSK） signals. The conversion is base...We present an all-optical nonreturn-to-zero/return-to-zero （NRZ/RZ） to carrier-suppressed return-to-zero （CSRZ） format conversion scheme for differential phase-shift keying （DPSK） signals. The conversion is based on nonlinear polarization rotation of a semiconductor optical amplifier （SOA）. The 4-channel NRZ-DPSK or RZ-DPSK signals at 10 Gb/s are simultaneously converted to the corresponding CSRZ-DPSK signals, with -0.8 and 1.4 dB average power penalties, respectively. Additionally, high quality format conversion performances are shown with the optical spectra and eye diagrams.展开更多
基金supported by the National Key Research and Development Program of China(No.2021YFB2800904)the National Natural Science Foundation of China(Nos.62225503,61835005,62205151,62171227,and 61935005)+2 种基金the Jiangsu Provincial Key Research and Development Program(Nos.BE2022079andBE2022055-2)theNaturalScience Foundation of the Jiangsu Higher Education Institutions of China(No.22KJB510031)the Startup Foundation for Introducing Talent of NUIST。
文摘This Letter proposes a high-security modulation scheme for optical transmission systems.By using multi-constellation shaping and asymmetric encryption,the information security can be enhanced and quantum computer cracking can be effectively resisted.Three-dimensional(3D)carrier-less amplitude phase modulation is utilized to superposition and transmit 3D signals.Experimental verification is conducted using a seven-core weakly coupled fiber platform.The results demonstrate that the proposed scheme can effectively protect the system from any illegal attacker.
基金Supported by the National Natural Science Foundation of China under Grant Nos 61425022,61522501,61675004,61307086,61475024,61672290,61475094 and 61605013the National Basic Research Program of China under Grant Nos2015AA015501,2015AA015502,2015AA015504,2015AA016904 and 2015AA016901the Beijing Nova Program under Grant No Z141101001814048
文摘We present an all-optical nonreturn-to-zero/return-to-zero （NRZ/RZ） to carrier-suppressed return-to-zero （CSRZ） format conversion scheme for differential phase-shift keying （DPSK） signals. The conversion is based on nonlinear polarization rotation of a semiconductor optical amplifier （SOA）. The 4-channel NRZ-DPSK or RZ-DPSK signals at 10 Gb/s are simultaneously converted to the corresponding CSRZ-DPSK signals, with -0.8 and 1.4 dB average power penalties, respectively. Additionally, high quality format conversion performances are shown with the optical spectra and eye diagrams.
