Study of “quantum + classical” wavelength division multiplexing technique in optical network
The co-propagation of quantum key distribution (QKD) and classical optical communication via wavelength division multiplexing (WDM) was studied,based on 40 MHz system clock decoy BB84 QKD.In the bi-directional CWDM scheme,1.2 kbit/s key generation rate was achieved while the quantum wavelength (1 55...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Beijing Xintong Media Co., Ltd
2018-09-01
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| Series: | Dianxin kexue |
| Subjects: | |
| Online Access: | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2018258/ |
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| Summary: | The co-propagation of quantum key distribution (QKD) and classical optical communication via wavelength division multiplexing (WDM) was studied,based on 40 MHz system clock decoy BB84 QKD.In the bi-directional CWDM scheme,1.2 kbit/s key generation rate was achieved while the quantum wavelength (1 550.12 nm) ,synchronization wavelength (1 310 nm),forward direction error-free 100 Mbit/s data wavelength (1 590 nm) and backward direction error-free 100 Mbit/s data wavelength (1 610 nm) were multiplexed over 70 km fiber.In the dual-fiber unidirectional CWDM scheme,1.58 kbit/s key generation rate was achieved while the quantum wavelength (1 550.12 nm),synchronization wavelength (1 610 nm) and forward direction error-free 10 Gbit/s data wavelength (1 310 nm) were multiplexed over 55 km fiber.In the dual-fiber unidirectional DWDM scheme,1.16 kbit/s key generation rate was achieved while the quantum wavelength (1 550.12 nm),synchronization wavelength (1 610 nm) and two forward direction error-free 100 Gbit/s DP-QPSK data wavelength (emulated,1 551.72 nm and 1 552.52 nm) were multiplexed over 70 km fiber. |
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| ISSN: | 1000-0801 |