8 May 2018 Chalcogenide molded freeform optics for QCL
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Abstract
High-precision chalcogenide molded freeform micro-lenses were designed and produced to perfectly collimate and circularize mid-infrared Quantum Cascade Lasers (QCLs). The innovative micro-lens has an input surface with freeform contour to simultaneously converge the fast axis and further diverge the slow axis, while the output freeform surface collimates both axes. The 5-mm long freeform lens is such that the collimated output fast- and slow-axis beams are circular. This paper presents recent results on the chalcogenide molded freeform micro-lens prototypes specifically designed to collimate and circularize QCL at 9 micron.
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Francois Chenard, Francois Chenard, Oseas Alvarez, Oseas Alvarez, Andrew Buff, Andrew Buff, Allen Yi, Allen Yi, "Chalcogenide molded freeform optics for QCL", Proc. SPIE 10627, Advanced Optics for Defense Applications: UV through LWIR III, 106270R (8 May 2018); doi: 10.1117/12.2303906; https://doi.org/10.1117/12.2303906
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