Indium Phosphide (InP) is a compound semiconductor made from indium and phosphorus. It is known for its high electron mobility and direct bandgap, making it ideal for high-frequency and optoelectronic applications, such as lasers and photodetectors. Due to its unique properties, Indium Phosphide is widely used in telecommunications, particularly in fiber optic systems. Its ability to efficiently convert electrical signals into light and vice versa makes it a crucial material in modern communication technologies.