OSA's Digital Library

Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 4 — Feb. 15, 2010
  • pp: 3774–3783

Photonic-based multi-wavelength sensor for object identification

Kavitha Venkataraayan, Sreten Askraba, Kamal E. Alameh, and Clifton L. Smith  »View Author Affiliations


Optics Express, Vol. 18, Issue 4, pp. 3774-3783 (2010)
http://dx.doi.org/10.1364/OE.18.003774


View Full Text Article

Enhanced HTML    Acrobat PDF (2089 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

A Photonic-based multi-wavelength sensor capable of discriminating objects is proposed and demonstrated for intruder detection and identification. The sensor uses a laser combination module for input wavelength signal multiplexing and beam overlapping, a custom-made curved optical cavity for multi-beam spot generation through internal beam reflection and transmission and a high-speed imager for scattered reflectance spectral measurements. Experimental results show that five different wavelengths, namely 473nm, 532nm, 635nm, 670nm and 785nm, are necessary for discriminating various intruding objects of interest through spectral reflectance and slope measurements. Objects selected for experiments were brick, cement sheet, cotton, leather and roof tile.

© 2010 OSA

OCIS Codes
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(200.4560) Optics in computing : Optical data processing
(280.3420) Remote sensing and sensors : Laser sensors
(300.6360) Spectroscopy : Spectroscopy, laser

ToC Category:
Sensors

History
Original Manuscript: January 12, 2010
Revised Manuscript: February 3, 2010
Manuscript Accepted: February 3, 2010
Published: February 5, 2010

Citation
Kavitha Venkataraayan, Sreten Askraba, Kamal E. Alameh, and Clifton L. Smith, "Photonic-based multi-wavelength sensor for object identification," Opt. Express 18, 3774-3783 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-4-3774


Sort:  Author  |  Year  |  Journal  |  Reset  

References

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited