Terahertz Wireless Communication Based on Optical Fiber Transmission

The paper presents a detailed study of a terahertz (THz) communication system, using optical fiber transmission specifically for frequencies above 500GHz. This system, utilizing the THz band's high data rate potential, is crucial for wireless broadband and satellite communication applications. Its integration with optical fibers, selected for their low loss and high bandwidth, enhances the efficient transmission of THz signals. The system employs an optical mixer to generate microwave sources, combining two lasers of different frequencies for precise control over the output. The receiver incorporates a Schottky rectifier diode, known for its high- frequency response and sensitivity, making it ideal for THz signal detection. The paper delves into the critical aspects and challenges of THz communication, including signal attenuation, noise, and technological limitations. It also examines the hardware design with a focus on durability, efficiency, and compatibility with existing infrastructures. The discussion extends to how various signal modulation modes affect the system's communication capacity, transmission distance, and error rate. The paper concludes by exploring the future prospects and potential applications of THz communication systems in areas like remote sensing, high-speed wireless networks, and space communication, providing a comprehensive overview of this advanced technology and its potential impacts.