Cavity enhanced spectroscopy in fibre cavities

G. Stewart, K. Atherton, B. Culshaw

Research output: Contribution to journalArticle

54 Citations (Scopus)

Abstract

Discusses the relative merits of passive and active fiber cavities for ring-down. Ring-down times of ~2 µs were recently demonstrated in passive cavities, but operation is restricted to weak evanescent wave interaction. We report on active cavities with amplifiers used for loss compensation, permitting the use of open-path micro-optic cells. Ring-down times of tens of microseconds can readily be achieved and extended to several hundred microseconds in gain-clamped cavities, but relaxation oscillations and system drift impose limits on accuracy and repeatability. A cavity enhancement of 2 orders of magnitude is realistically possible, and sensitivity may be further enhanced if ring-down is combined with established spectroscopic methods.
LanguageEnglish
Pages442-444
Number of pages2
JournalOptics Letters
Volume29
Issue number5
DOIs
Publication statusPublished - 2004

Fingerprint

cavities
fibers
downtime
spectroscopy
rings
evanescent waves
wave interaction
amplifiers
optics
oscillations
augmentation
sensitivity
cells

Keywords

  • fibre optics
  • optical communications
  • sensors imaging systems
  • microscopy
  • optoelectronics

Cite this

Stewart, G. ; Atherton, K. ; Culshaw, B. / Cavity enhanced spectroscopy in fibre cavities. In: Optics Letters. 2004 ; Vol. 29, No. 5. pp. 442-444.
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Cavity enhanced spectroscopy in fibre cavities. / Stewart, G.; Atherton, K.; Culshaw, B.

In: Optics Letters, Vol. 29, No. 5, 2004, p. 442-444.

Research output: Contribution to journalArticle

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T1 - Cavity enhanced spectroscopy in fibre cavities

AU - Stewart, G.

AU - Atherton, K.

AU - Culshaw, B.

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KW - fibre optics

KW - optical communications

KW - sensors imaging systems

KW - microscopy

KW - optoelectronics

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