High brightness imaging system using vertical cavity surface-emitting laser micro-arrays- results and proposed enhancements

Mark A. Mentzer; Chuni L. Ghosh

doi:10.1117/12.888977

9 May 2011 High brightness imaging system using vertical cavity surface-emitting laser micro-arrays- results and proposed enhancements

Mark A. Mentzer, Chuni L. Ghosh

Author Affiliations +

Proceedings Volume 8014, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXII; 80141G (2011) https://doi.org/10.1117/12.888977
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

Laser illumination systems for high brightness imaging through the self-luminosity of explosive events, at Aberdeen Proving Ground and elsewhere, required complex pulse timing, extensive cooling, large-scale laser systems (frequencydoubled flash-pumped Nd:YAG, Cu-vapor, Q-switched ruby), making them difficult to implement for range test illumination in high speed videography. A Vertical Cavity Surface-Emitting Laser (VCSEL) array was designed and implemented with spectral filtering to effectively remove self-luminosity and the fireball from the image, providing excellent background discrimination in a variety of range test scenarios. Further improvements to the system are proposed for applications such as imaging through murky water or dust clouds with optimal penetration of obscurants.

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Mark A. Mentzer and Chuni L. Ghosh "High brightness imaging system using vertical cavity surface-emitting laser micro-arrays- results and proposed enhancements", Proc. SPIE 8014, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXII, 80141G (9 May 2011); https://doi.org/10.1117/12.888977

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KEYWORDS

Vertical cavity surface emitting lasers

Imaging systems

Cameras

Explosives

Image filtering

Optical filters

Fiber optic illuminators

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