fig7

Figure 7. (A) Schematic of the experimental setup for the UWOC system based on CsPbBr₃ NCs-glass; (B) the eye diagrams for the UWOC system at different operating times; (C) structure of the quasi-omnidirectional UWOC transmitter; (D) measured optical power distribution of the UWOC transmitter; (E) BER for two communication modes at different yaw angles. Reproduced with permission: (A, B)^[33], Copyright 2021, Wiley-VCH GmbH; (C-E)^[34], Copyright 2022, Optica Publishing Group. SQA: signal quality analyzer; OSC: oscilloscope; APD: avalanche photodiode; UWOC: underwater wireless optical communication; NC: nanocrystal; BER: bit-error-rate.