Volume 112, Number 1, October 2015
|Number of page(s)||5|
|Section||Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics|
|Published online||20 October 2015|
Experimental evidence of coherent population oscillations based on spectral hole-burning in erbium-doped silica fibre
Departamento de Física Aplicada, Universidad de Zaragoza – Pedro Cerbuna, 12, E-50.009 Zaragoza, Spain
Received: 17 July 2015
Accepted: 6 October 2015
Spectral hole-burning in an erbium-doped silica fibre at room temperature has been experimentally demonstrated. This demonstration can be considered as a clear experimental evidence of the relationship between slow light and coherent population oscillations in erbium-doped fibres. In a 3.5 m erbium-doped silica fibre, spectral holes with a depth up to were obtained by coupling a strong and narrow saturating power and measuring changes in the spectral absorption coefficient for a weak and wide probe power. A tuneable ring-cavity erbium-doped fibre laser was employed as saturating source. To obtain a higher saturating power, laser emission was amplified by means of a second fibre amplifier.
PACS: 42.50.Ct – Quantum description of interaction of light and matter; related experiments / 42.62.Fi – Laser spectroscopy / 42.65.-k – Nonlinear optics
© EPLA, 2015
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