[2] [2] Jian A, Sakhiya P V, Bahl R K. Design and development of weak coherent pulse source for quantum key distribution system[C]//2020 IEEE International Conference on Electronics, Computing and Communication Technologies (CONECCT). IEEE, 2020: 1-5.

[3] [3] Roberts G L, Lucamarini M, Dynes J F, et al. Modulator-Free Coherent-One-Way Quantum Key Distribution[J]. Laser & Photonics Review, 2017, 11(1): 1700067.

[4] [4] Lu Q, Lu Z G, Yang H Z, et al. FPGA-Based Implementation of Multidimensional Reconciliation Encoding in Quantum Key Distribution[J]. Entropy, 2022, 25(1): 111-120.

[7] [7] Tang Y L, Yin H L, Chen S J, et al. Field test of measurement-device-independent quantum key distribution[J]. IEEE Journal of Selected Topics in Quantum Electronics, 2014, 21(3): 116-122.

[8] [8] Tang Z Y, Liao Z F, Xu F H, et al. Experimental demonstration of polarization encoding measurement-device-independent quantum key distribution.[J]. Physical review letters, 2014, 112(19): 1182-1190.

[9] [9] Zhang S J, Liang H. A laser light source control system for continuous variable quantum key distribution[J]. Journal of Instrumentation, 2020, 15(05): P05003.

[10] [10] Matsui Y. Directly modulated laser technology: Past, present, and future[M]. Datacenter Connectivity Technologies. River Publishers, 2022: 87-171.

[20] [20] Zhang B, Li L Q, Lu Q M, et al. Frequency doubling in PPLN depressed-cladding waveguides written by femtosecond laser[J]. Optical Materials, 2022, 125: 112074.

[22] [22] Chen S, Shi Y, He S, et al. Variable optical attenuator based on a reflective Mach-Zehnder interferometer[J]. Optics Communications, 2016, 361: 1015-1021.