Apparatus for Laser Beam Profile Analysis

The Laser beam profiler is a high precision, CCD based (for VIS / NIR) device to be used with lasers having wavelengths between 340 nm and 1100 nm. Coupled with software package, the device can be used for quick and accurate characterization of lasers.

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 medical and industrial fields often require laser source 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, possible only through laser beam profiling systems.

Two major electronic techniques are used to image laser beams, mechanical scanning devices and camera based systems. Mechanical scanning devices employ moving pinholes to attenuate the beam as well as to sample it, while camera-based systems image the beam that reaches the array. Mechanical scanning system assemble a beam image after making multiple passes through the beam. This limits the number of images that can be displayed and generally not considered to work in real time. Further, they are not suitable for pulsed lasers.

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