20 February 2014 Industrial performance analysis of the fast axis collimator
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Abstract
Micro optic components such as the fast axis collimator (FAC) are in widespread use in the high power diode laser industry. The requirement of high numerical aperture from diode laser and optical design and the pressure of cost to performance ratio have created convergence in the application towards the design of a plano-aspheric cylinder lens with high refractive index. The performance in power transmission and optical collimation of the FAC lens type are dependent on specific factors such as accuracy in form and refractive index, surface roughness and performance of the coating. We present a qualified method for measurement of the collimation efficiency and industrial analysis of the form error, of the surface roughness, of the AR coating as well as the result of a 1000h damp/heat test of the stability of the AR coating.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. Forrer, H. Moser, D. Kura, M. Grössl, H. Forrer, "Industrial performance analysis of the fast axis collimator", Proc. SPIE 8963, High-Power Laser Materials Processing: Lasers, Beam Delivery, Diagnostics, and Applications III, 89630D (20 February 2014); doi: 10.1117/12.2038067; https://doi.org/10.1117/12.2038067
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