Laser diode based laser sources for high precision measurement and inspection systems
by Dr. Ulrich Oechsner, Dr. Christian Knothe, Mats Rahmel and Michael Schulz

Modern measuring techniques often involve using lasers specifically designed for the demanding requirements of industrial tasks. 
An increasing number of laser diodes have become available in the green and blue region of the visible spectrum so that laser-diode based modules now cover the full range from UV to IR. 
A variety of beam-shaping techniques can be used to produce the particular beam profile necessary for a specific measuring task. [more]