What type of laser does LIDAR use?

LIDAR systems commonly utilize semiconductor lasers, specifically because these types of lasers are compact, efficient, and can easily be integrated into various systems for applications such as mapping, surveying, and environmental monitoring. Semiconductor lasers, often known as diode lasers, operate using a semiconductor material to produce light when an electric current is applied. This allows for precise wavelength control and a strong light output, essential characteristics for effective distance measurement and terrain mapping utilized in LIDAR technology.

While other types of lasers, like fiber optics, solid-state, and gas lasers, have their applications, they don’t provide the same level of efficiency and integrability for most LIDAR systems, particularly those deployed in mobile and remote sensing operations. Fiber optic lasers, for instance, are often larger and may involve more complex setups than semiconductor lasers. Solid-state lasers, while powerful, can be bulkier and less suited for the miniaturization required in LIDAR applications. Gas lasers, on the other hand, typically require more energy and are not as commonly used in compact systems intended for rapid scanning and data collection, which are crucial for the effectiveness of LIDAR technology.