Investigation of erbium-doped fiber laser intra-cavity absorption sensor for gas detection

Zhang, Y. and Zhang, M. and Jin, W. and Ho, H.L. and Demokan, M.S. and Culshaw, B. and Stewart, G. (2004) Investigation of erbium-doped fiber laser intra-cavity absorption sensor for gas detection. Optics Communications, 232 (1-6). pp. 295-301. ISSN 0030-4018 (http://dx.doi.org/10.1016/j.optcom.2004.02.046)

Abstract

Steady state theoretical analysis of an erbium-doped fiber laser intra-cavity absorption sensor shows that high sensitivity can be achieved when the laser is working near threshold but is limited by the spontaneous emission. Experiments are carried out using a linear cavity fiber laser. The general trends of experimental results agree with the theoretical prediction. The use of the intra-cavity sensor for gas detection is demonstrated. A sensitivity of 91 times that of a single-pass absorption sensor is achieved.

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• Item metadata

  Item type:	Article
  ID code:	7016
  Dates:	Date Event 2004 Published
  Keywords:	fiber optics sensors, laser sensors, absorption spectroscopy, fiber optics, spectroscopy, Electrical Engineering. Electronics Nuclear Engineering, Physical and Theoretical Chemistry, Electronic, Optical and Magnetic Materials, Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering
  Subjects:	Technology > Electrical engineering. Electronics Nuclear engineering
  Department:	Faculty of Engineering > Electronic and Electrical Engineering Unknown Department
  Depositing user:	Strathprints Administrator
  Date deposited:	16 Oct 2008
  Last modified:	19 May 2023 01:12
  URI:	https://strathprints.strath.ac.uk/id/eprint/7016