10 Tbit/s QAM Quantum Noise Stream Cipher Coherent Transmission Over 160 Km
We describe in detail our recent demonstration of a 10 Tbit/s secure physical layer transmission that we achieved by using digital coherent QAM quantum noise stream cipher (QNSC) and injection-locked WDM techniques. We used an FPGA-based transmitter and receiver to demonstrate a 165 channel polariza...
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| Veröffentlicht in: | Journal of lightwave technology 2021-02, Vol.39 (4), p.1056-1063 |
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| container_end_page | 1063 |
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| container_issue | 4 |
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| container_title | Journal of lightwave technology |
| container_volume | 39 |
| creator | Yoshida, Masato Kan, Takashi Kasai, Keisuke Hirooka, Toshihiko Nakazawa, Masataka |
| description | We describe in detail our recent demonstration of a 10 Tbit/s secure physical layer transmission that we achieved by using digital coherent QAM quantum noise stream cipher (QNSC) and injection-locked WDM techniques. We used an FPGA-based transmitter and receiver to demonstrate a 165 channel polarization-multiplexed WDM 5 Gbaud 128 QAM/QNSC (70 Gbit/s) on-line transmission over 160 km with a spectral efficiency of 6 bit/s/Hz. In the present system, the original 128 QAM data were encrypted in a 1024 × 1024 QAM format using basis information. The encrypted signal was then masked by a large ASE noise, which reduced the detection "success" probability for an eavesdropper to 0.13% for each symbol. Furthermore, the multiplicity of the original QAM data and the seed keys used to generate the basis information were arbitrarily changed with time, which makes the decryption much more difficult. |
| doi_str_mv | 10.1109/JLT.2020.3016693 |
| format | Article |
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We used an FPGA-based transmitter and receiver to demonstrate a 165 channel polarization-multiplexed WDM 5 Gbaud 128 QAM/QNSC (70 Gbit/s) on-line transmission over 160 km with a spectral efficiency of 6 bit/s/Hz. In the present system, the original 128 QAM data were encrypted in a 1024 × 1024 QAM format using basis information. The encrypted signal was then masked by a large ASE noise, which reduced the detection "success" probability for an eavesdropper to 0.13% for each symbol. 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Furthermore, the multiplicity of the original QAM data and the seed keys used to generate the basis information were arbitrarily changed with time, which makes the decryption much more difficult.</description><subject>Algorithms</subject><subject>Cryptography</subject><subject>Encryption</subject><subject>Field programmable gate arrays</subject><subject>Finite impulse response filters</subject><subject>Noise</subject><subject>Optical fiber communication</subject><subject>Optical transmitters</subject><subject>Quadrature amplitude modulation</subject><subject>quantum cryptography</subject><subject>Receivers</subject><subject>Wavelength division multiplexing</subject><issn>0733-8724</issn><issn>1558-2213</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kE1Lw0AQhhdRsFbvgpcFz2lnZ7-yxxL8bLUU43lJthtMMUndTQT_vSkVLzOHed4Z5iHkmsGMMTDz51U-Q0CYcWBKGX5CJkzKNEFk_JRMQHOepBrFObmIcQfAhEj1hCwZ0Lys-3mkm8UL3QxF2w8Nfe3q6OlbH3zR0Kzef_hAs26svu1pHoo2NnWMddfS9fc4YgrosrkkZ1XxGf3VX5-S9_u7PHtMVuuHp2yxShwa1ieyLEpALDlKZjhz2kFRSefEFnUqtRauRDAKpEJTbZ2qhEZMZcUqA8i14lNye9y7D93X4GNvd90Q2vGkxfEpwbXhBwqOlAtdjMFXdh_qpgg_loE9KLOjMntQZv-UjZGbY6T23v_jhiktGPBf785jtA</recordid><startdate>20210215</startdate><enddate>20210215</enddate><creator>Yoshida, Masato</creator><creator>Kan, Takashi</creator><creator>Kasai, Keisuke</creator><creator>Hirooka, Toshihiko</creator><creator>Nakazawa, Masataka</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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| ispartof | Journal of lightwave technology, 2021-02, Vol.39 (4), p.1056-1063 |
| issn | 0733-8724 1558-2213 |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Algorithms Cryptography Encryption Field programmable gate arrays Finite impulse response filters Noise Optical fiber communication Optical transmitters Quadrature amplitude modulation quantum cryptography Receivers Wavelength division multiplexing |
| title | 10 Tbit/s QAM Quantum Noise Stream Cipher Coherent Transmission Over 160 Km |
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