Everyone who owns a car is familiar with the 3-D colour map of your immediate surroundings that the car display monitor shows while you travel. This map generates a map of the area around you and displays it to the driver, helping them in safe driving. But what is the name of this technology? It’s known as a LiDAR laser, which stands for Light Detection and Ranging. A typical LiDAR laser consists of four major components: a transmitter (light source), a receiver (light detection), a signal detection system, and a data acquisition and control system. Again, the LiDAR architecture can be built in two ways: biaxial or coaxial. This configuration aids in avoiding near-field backscattered radiation, which could saturate the photodetector. In contrast, the axis of the LiDAR Laser beam coincides with the axis of the receiver optics in a coaxial system. As a result, the receiver may see the laser beam in the zero range bins.