[1] [1] DOU Z, ZHANG Y M, LIU C, et al. Research status and future development trend of AUV underwater communication technology［J］. Ship Science and Technology, 2020, 42(3): 93-97.

[2] [2] WU C, WANG D Y, REN K R, et al. Technical situation and development trend of subsea processing system of offshore oil and gas［J］. China Petroleum Machinery, 2012, 40(8): 80-84.

[3] [3] SUN C D, LI C, CHEN L Y. The key points of designing underwater tv camera system［J］. Acta Photonica Sinica, 1998, 27(5): 462-466.

[4] [4] LI J T. Study on spectral properties of sodium copper chlorophyllin solution in visible light range ［D］. Xinxiang：Henan Normal University，2017.

[5] [5] LI Z L. Synthesis of functionalized metal porphyrins in imidazole ionic liquids and catalytic CO2 cycloaddition reaction ［D］. Xi’an:Northwestern University,2020.

[6] [6] HAN Y N. Study on the properties of metal-porphyrin/two-dimensional carbon composite photocatalyst ［D］. Tianjin :Tianjin University,2020.

[7] [7] CHENG L. Pharmacological study of sodium copper chlorophyllin (I)［J］. Health Care Monthly, 2014, 35(5): 477-478.

[8] [8] SHEIK-BAHAE M, SAID A A, WEI T H, et al. Sensitive measurement of optical nonlinearities using a single beam［J］. IEEE Journal of Quantum Electronics, 1990, 26(4): 760-769.

[9] [9] ZHANG Y P, LIU Y F, JIA D G. Design of electrically controlled tunable mid infrared laser based on BGSe crystal［J］. Applied Laser, 2021, 41(4): 839-842.

[10] [10] QI C Y, LIU K J, HUANG Y P, et al. Third order nonlinear optical properties of bacteriorhodopsin Langmuir-blodgett multilayer film［J］. Applied Laser, 2006, 26(3): 178-180.

[11] [11] GANEEV R A, RYASNYANSKI A I, KURODA H. Nonlinear optical characteristics of carbon disulfide［J］. Optics and Spectroscopy, 2006, 100(1): 108-118.

[12] [12] NGUYEN L T, HONG N T, THI C T B, et al. The numerical methods for analyzing the Z-scan data［J］. Journal of Nonlinear Optical Physics & Materials, 2014, 23(2): 1450020.