Laser Beam Profiling

Near-Infrared (NIR) and Short Wave Infrared (SWIR) Laser Beam Profiling for Measuring Pointing Direction, Beam Divergence, Beam Width, and Other Beam Characteristics

A laser beam profile is produced to identify spatial characteristics that predict the propagation, quality, and utility of a laser beam. These spatial characteristics include beam width, divergence, and direction. Laser beam profiling is important for manufacturers of products that utilize lasers as the core technology. Applications in the medical and industrial fields often require laser sources as tools, and these lasers must be analyzed and well understood. Products designed for laser printing, welding, cutting, and fiber optics require information about the efficiency, power, special distribution, and uniformity of the beam only possible through laser beam profiling systems.

The image below shows a beam profile that would provide the user with information to predict the quality of the laser beam.

Sensors Unlimited Inc. (SUI) produces the ideal InGaAs detector for laser beam profiling in the range of 0.9 to 1.7 µm. Sensors Unlimited's 25 µm square pixel cameras can produce high resolution imagery with a linear power response. Variable gain and programmable integration time enables an enormous dynamic range for the most demanding laser beam profiling analysis. High speed windowing cameras are also available from SUI that produce a digital output of over 15,000 frames per second in a 16 x 16 pixel window, enabling the time resolved laser beam profiling and monitoring of variations in the laser's output.