Low coherence reflectometry using wavelength-tunable superfluorescent fibre source
- 8 July 1993
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 29 (14) , 1273-1275
- https://doi.org/10.1049/el:19930850
Abstract
A wavelength-tunable superfluorescent fibre source with an erbium-doped fibre amplifier was constructed to reduce the jaggedness in low coherence reflectometry. This source was capable of tuning narrowband superfluorescence (~1 nm FWHM) over a 32 nm range with an output of 4.3 dBm. The signal averaging which resulted from wavelength tuning with this source efficiently reduced the jagged fluctuation in the Rayleigh backscattering profile to ± 1 dB. The advantage of signal averaging over conventional signal smoothing is also discussedKeywords
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