Feng Gong, Xin Yang, Tianyi Wang. Improvement of Self-Referenced Continuous Variable Quantum Key Distribution Using Optical Amplifier[J]. Laser & Optoelectronics Progress, 2019, 56(21): 212702
- Laser & Optoelectronics Progress
- Vol. 56, Issue 21, 212702 (2019)
Fig. 1. Entangled equivalent scheme of SR-CV-QKD protocol with optical amplifier
Fig. 2. Structural models of two types of amplifiers. (a) PIA; (b) PSA
Fig. 3. Asymptotic secret key rate of homodyne detection combined with PSA under asymptotic case
Fig. 4. Secret key rate of heterodyne detection combined with PIA under asymptotic case
Fig. 5. Maximum transmission distance under different amplifier noise
Fig. 6. Secret key rate of homodyne detection combined with PSA under finite code length
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