Developments in low-cost laser detection: wide field of view implementation and direction determination

Marie A. Zandi; David M. Benton; Kate Sugden

doi:10.1117/12.2532560

7 October 2019 Developments in low-cost laser detection: wide field of view implementation and direction determination

Marie A. Zandi, David M. Benton, Kate Sugden

Proceedings Volume 11161, Technologies for Optical Countermeasures XVI; 111610H (2019) https://doi.org/10.1117/12.2532560
Event: SPIE Security + Defence, 2019, Strasbourg, France

Abstract

The availability of low cost but relatively high power laser pointers (hundreds of mW) has led to misuse with potentially dangerous consequences, such as dazzling aircraft which has raised concerns about aircraft safety. A low cost laser detection system based on coherence detection has been developed and is able to detect weak, continuous laser sources even against bright background light. In this paper, we introduce the use of a cone mirror to extend the horizontal field of view of the detector (originally at 3°) to 360° to detect incoming beams from different directions. With the additional use of a camera in the system, we also determine the direction of the incoming laser beam. Finally, the sensitivity between the original system and the cone mirror system are compared: the new system showed promising results with a sensitivity below 100nW.

Citation Download Citation

Marie A. Zandi, David M. Benton, and Kate Sugden "Developments in low-cost laser detection: wide field of view implementation and direction determination", Proc. SPIE 11161, Technologies for Optical Countermeasures XVI, 111610H (7 October 2019); https://doi.org/10.1117/12.2532560

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KEYWORDS

Mirrors

Modulation

Signal detection

Laser development

Cameras

Imaging systems

Sensors

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