8 August 2013 Design and tolerance analysis of an axial gradient-index singlet broadband laser collimator
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Abstract
A laser collimator is a narrow-field imaging system that is designed for near-diffraction-limited performance when operating at a single wavelength. Although a traditional design might consist of a homogeneous doublet, the design of an axial gradient-index (GRIN) singlet for such an application is described. The analysis begins with third-order aberration thin lens optical design principles in order to examine the effects of spherochromatism from the GRIN. The final design is optimized in CODE V® using GRIN aluminum oxynitride (ALON®), which allows for diffraction-limited operation from the visible through 5 μm. A tolerance analysis is performed on the slope, nonlinearity, and tilt of the GRIN profile in order to assess sensitivity to fabrication errors.
© 2013 Society of Photo-Optical Instrumentation Engineers (SPIE)
Peter McCarthy, Peter McCarthy, Duncan T. Moore, Duncan T. Moore, } "Design and tolerance analysis of an axial gradient-index singlet broadband laser collimator," Optical Engineering 52(11), 112110 (8 August 2013). https://doi.org/10.1117/1.OE.52.11.112110 . Submission:
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