Shangjun Yang, Xizheng Ke. Carrier Frequency Stability Control in Coherent Optical Communication[J]. Laser & Optoelectronics Progress, 2018, 55(4): 040601
- Laser & Optoelectronics Progress
- Vol. 55, Issue 4, 040601 (2018)
Fig. 1. Schematic diagram of space coherent optical communication
Fig. 2. Receiving end signal constellation under BPSK modulation. (a) ±2 MHz, RSN=20 dB; (b) ±10 MHz, RSN=20 dB; (c) ±20 MHz, RSN=20 dB
Fig. 3. Influence of carrier frequency drift on the BER of BPSK system
Fig. 4. Receiving end signal constellation under QPSK modulation. (a) ±2 MHz, RSN=20 dB; (b) ±10 MHz, RSN=20 dB; (c) ±20 MHz, RSN=20 dB
Fig. 5. Influence of carrier frequency drift on the BER of QPSK system
Fig. 6. Frequency control schematic diagram
Fig. 7. Frequency control flow chart
Fig. 8. (a) Carrier adjustment process diagram; (b) carrier stable process diagram; (c) stable carrier wave; (d) control circuit
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20