Chalcogenide molded freeform optics for QCL

Francois Chenard; Oseas Alvarez; Andrew Buff; Allen Yi

doi:10.1117/12.2303906

8 May 2018 Chalcogenide molded freeform optics for QCL

Francois Chenard, Oseas Alvarez, Andrew Buff, Allen Yi

Author Affiliations +

Proceedings Volume 10627, Advanced Optics for Defense Applications: UV through LWIR III; 106270R (2018) https://doi.org/10.1117/12.2303906
Event: SPIE Defense + Security, 2018, Orlando, Florida, United States

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.

Citation Download Citation

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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