In-situ chemical detection based on photonic devices

Yuri Beregovski, Sergey Y. Ten, Sergio B. Mendes, Seppo Honkanen, Mahmoud Fallahi, Nasser Peyghambarian, Karen M. Grace, Basil I. Swanson

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations


A novel scheme of a laser-based chemical sensor has been examined. The scheme is based on the lasing frequency shift of a DBR laser as a result of refractive index change of the sensitive coating in the presence of chemicals in question. The applicability and advantages of different schemes are discussed. The results of preliminary experiments related to the construction and stability of an external cavity DBR laser and interferometric measurements of refractive index change are presented.

Original languageEnglish (US)
Pages (from-to)76-82
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 1997
EventElectro-Optical Technology for Remote Chemical Detection and Identification II - Orlando, FL, United States
Duration: Apr 21 1997Apr 21 1997


  • Chemical detection
  • DBR laser
  • Environmental sensors
  • External cavity

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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