TY - JOUR
T1 - Extended-range, low coherence dual wavelength interferometry using a superfluorescent fibre source and chirped fibre Bragg gratings
AU - Brady, G.P.
AU - Kalli, Kyriacos
AU - Webb, David J.
AU - Jackson, David A.
AU - Zhang, Lin
AU - Bennion, Ian
PY - 1997/1/15
Y1 - 1997/1/15
N2 - We describe an all-fibre, passive scheme for making extended range interferometric measurements based on the dual wavelength technique. The coherence tuned interferometer network is illuminated with a single superfluorescent fibre source at 1.55 μm and the two wavelengths are synthesised at the output by means of chirped fibre Bragg gratings. We demonstrate an unambiguous sensing range of 270 μm, with a dynamic range of 2.7 × 105.
AB - We describe an all-fibre, passive scheme for making extended range interferometric measurements based on the dual wavelength technique. The coherence tuned interferometer network is illuminated with a single superfluorescent fibre source at 1.55 μm and the two wavelengths are synthesised at the output by means of chirped fibre Bragg gratings. We demonstrate an unambiguous sensing range of 270 μm, with a dynamic range of 2.7 × 105.
KW - extended range interferometric measurements
KW - dual wavelength technique
KW - coherence tuned interferometer network
UR - http://www.scopus.com/inward/record.url?scp=0030783460&partnerID=8YFLogxK
U2 - 10.1016/S0030-4018(96)00558-5
DO - 10.1016/S0030-4018(96)00558-5
M3 - Article
SN - 0030-4018
VL - 134
SP - 341
EP - 348
JO - Optics Communications
JF - Optics Communications
IS - 1-6
ER -