Low Cost Detection of Lasers

Benton, David (2017). Low Cost Detection of Lasers. Optical Engineering, 56 (11),

Abstract

A low-cost method of detecting lasers based on detecting coherence properties of received light is presented. The method uses an unbalanced Mach–Zehnder interferometer with a modulating piezo-mounted mirror in one arm to discriminate against incoherent background light and identify the presence of laser radiation at the nW level against much brighter backgrounds. The wavelength of the coherent input can be determined by comparing the intensities of the modulation frequency harmonics.

Publication DOI: https://doi.org/10.1117/1.OE.56.11.114104
Divisions: Engineering & Applied Sciences > Aston Institute of Photonics Technology
Additional Information: © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI. Funding: Centre for Defence Enterprise within UK MoD.
Uncontrolled Keywords: laser detection; modulation; wavelength measurement
Full Text Link: https://www.spi ... .11.114104.full
Related URLs:
Published Date: 2017-11-15
Authors: Benton, David ( 0000-0003-0663-1404)

Download

[img]

Version: Published Version

License: Creative Commons Attribution

| Preview

Export / Share Citation


Statistics

Additional statistics for this record