Investigation of the dynamic response of erbium fibre lasers with potential application for sensors

G. Stewart, G. Whitenett, K. Vijayraghavan, S. Sridaran

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

We derive a theoretical description of the transient response for erbium fiber ring lasers, which includes the effects of amplified spontaneous emission and the large number of longitudinal modes that are present in large cavities. Based on these modified rate equations, the full transient period is simulated and compared with experimental measurements performed at 1560 nm, showing reasonable agreement with theory. Approximate analytical relations are also derived for the key characteristics of the laser response, including steady-state and transient parameters such as build-up time, frequency, and the decay constant of relaxation oscillations. The results are useful in the measurement of fiber laser parameters and in the design of novel fiber laser sensors, such as intracavity laser absorption sensors based on spectral narrowing during the transient period of power build-up in a laser cavity.
LanguageEnglish
Pages1786-1796
Number of pages10
JournalJournal of Lightwave Technology
Volume25
Issue number7
DOIs
Publication statusPublished - Jul 2007

Fingerprint

dynamic response
erbium
fiber lasers
sensors
transient response
ring lasers
laser cavities
spontaneous emission
lasers
oscillations
cavities
decay

Keywords

  • erbium fiber lasers
  • fiber amplifiers
  • fiber laser sensors
  • laser transients
  • optical fiber sensors

Cite this

Stewart, G. ; Whitenett, G. ; Vijayraghavan, K. ; Sridaran, S. / Investigation of the dynamic response of erbium fibre lasers with potential application for sensors. In: Journal of Lightwave Technology. 2007 ; Vol. 25, No. 7. pp. 1786-1796.
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Investigation of the dynamic response of erbium fibre lasers with potential application for sensors. / Stewart, G.; Whitenett, G.; Vijayraghavan, K.; Sridaran, S.

In: Journal of Lightwave Technology, Vol. 25, No. 7, 07.2007, p. 1786-1796.

Research output: Contribution to journalArticle

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AU - Stewart, G.

AU - Whitenett, G.

AU - Vijayraghavan, K.

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AB - We derive a theoretical description of the transient response for erbium fiber ring lasers, which includes the effects of amplified spontaneous emission and the large number of longitudinal modes that are present in large cavities. Based on these modified rate equations, the full transient period is simulated and compared with experimental measurements performed at 1560 nm, showing reasonable agreement with theory. Approximate analytical relations are also derived for the key characteristics of the laser response, including steady-state and transient parameters such as build-up time, frequency, and the decay constant of relaxation oscillations. The results are useful in the measurement of fiber laser parameters and in the design of novel fiber laser sensors, such as intracavity laser absorption sensors based on spectral narrowing during the transient period of power build-up in a laser cavity.

KW - erbium fiber lasers

KW - fiber amplifiers

KW - fiber laser sensors

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