High-power underwater wireless optical communication transmitter

Abstract

The invention provides a high-power underwater wireless optical communication transmitter. A watertight connector supplies power to a modulation circuit, an array driver and an LED device, meanwhile,the watertight connector is responsible for external communication, and after modulation of the modulation circuit, voltage provides drive for the LED device through the parallel array driver, so thatthe LED device emits light, light is transmitted through the optical antenna, and underwater wireless transmission is achieved. According to the invention, the shell and seawater are used for rapid heat dissipation; the focus is controlled at the LED lamp wick, the optical divergence angle is compressed, the light energy is gathered, the light beam expansion loss is reduced, the peak power is improved on the premise that the average power is not changed, longer-distance transmission is achieved, the transmitting light power can be further improved on the premise that the modulation rate is guaranteed, and longer-distance underwater wireless transmission is achieved.

Description

technical field [0001] The invention relates to the field of underwater wireless optical communication, in particular to a communication optical transmitter. Background technique [0002] Underwater wireless optical communication uses light waves as the information carrier to realize wireless transmission of underwater information. In order to increase the transmission distance, blue-green light with low seawater loss is generally used as the light source. Lossless radio communication, which can achieve extremely high-speed underwater wireless communication within a medium communication distance, is currently attracting high attention in the civilian and military fields. [0003] Underwater wireless optical communication is divided according to the light source used, mainly including LED wireless optical communication system and LD wireless optical communication system. The LD system uses high-speed LD (laser diode) as the light source, and the communication rate is fast, g...

AI Technical Summary

Problems solved by technology

The LD system uses high-speed LD (laser diode) as the light source, and the communication rate is fast, generally above 100Mbps, but due to the narrow beam, a precise servo alignment device is required to communicate reliably; the LED system uses high-power LED (light-emitting diode) as the light source , the rate is generally within 10Mbps, but the divergence angle of the light source is large, the coverage is wide, no alignment is required, and it is easy to use

Images