By: Michael Scaggs Athermalization of focusing objectives is a common technique for optimizing imaging systems in the infrared where thermal effects are a major concern. The athermalization is generally done within the spectrum of interest and not generally applied to a single wavelength. By applying athermalization techniques to a laser system, a significant reduction in […]
Thermal Lensing
Comparison of 1 Micron Transmissive Optical Materials for High Power Lasers
By: Steve Rummel, Gary Herrit, Alan Hedges II-VI Infrared One of the problems that high power fiber, direct-diode, and disk laser users experience is thermal lensing of their beam delivery optics and debris windows. This is placing increased demands on the optics used in 1 micron laser beam delivery systems. Direct-diode lasers, meanwhile, continue to […]