Infrared-induced photodarkening in Tm-doped fluoride fibres

Abstract

We have observed a new type of infrared-induced photodarkening in high-numerical-aperture fluoride fibers doped with 3000 and 10,000 parts in 106 by weight of Tm. The loss induced in the visible region by 1140-nm radiation is very strong (as high as 25 dB in a 50-cm piece) and broadband it can be removed by irradiation with the same pump wavelength at lower powers

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Southampton (e-Prints Soton)

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Last time updated on 02/07/2012

This paper was published in Southampton (e-Prints Soton).

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