TY - JOUR
T1 - Optical fibre cavity for ring-down experiments with low coupling losses
AU - Fabian, M.
AU - Lewis, E.
AU - Newe, T.
AU - Lochmann, S.
PY - 2010/7/28
Y1 - 2010/7/28
N2 - A fibre-cavity design based on highly reflective gold coatings, vapour deposited to the two end faces of a large core multimode waveguide, is presented. In contrast to common fibre-cavity approaches, the laser pulses are not coupled through the reflective coatings into the cavity but through a micro hole in one of the fibre end faces, which reduces the commonly very high coupling loss to less than 1%. Accordingly, lower demands on the source power and the sensitivity of the receiver circuit result in lower costs of ring-down sensor approaches. The scope of the paper is on the proof of principle and the characterization of the novel fibre-cavity design. Nevertheless, potential applications are briefly addressed at the end of the paper.
AB - A fibre-cavity design based on highly reflective gold coatings, vapour deposited to the two end faces of a large core multimode waveguide, is presented. In contrast to common fibre-cavity approaches, the laser pulses are not coupled through the reflective coatings into the cavity but through a micro hole in one of the fibre end faces, which reduces the commonly very high coupling loss to less than 1%. Accordingly, lower demands on the source power and the sensitivity of the receiver circuit result in lower costs of ring-down sensor approaches. The scope of the paper is on the proof of principle and the characterization of the novel fibre-cavity design. Nevertheless, potential applications are briefly addressed at the end of the paper.
KW - Fibre cavity
KW - Optical fibre sensor
KW - Ring-down spectroscopy
UR - http://www.scopus.com/inward/record.url?scp=77958099647&partnerID=8YFLogxK
U2 - 10.1088/0957-0233/21/9/094034
DO - 10.1088/0957-0233/21/9/094034
M3 - Article
AN - SCOPUS:77958099647
SN - 0957-0233
VL - 21
JO - Measurement Science and Technology
JF - Measurement Science and Technology
IS - 9
M1 - 094034
ER -