We investigate the effects of coating thickness on the scattering losses of metal coated active fibre. A range of low numerical aperture metal coated optical fibres are placed in etchant solutions whilst measuring propagation loss as a function of time. By utilising concurrent coating diameter measurements, we are able to correlate propagation losses with coating thickness. Experimentally we find a monotonic dependence on coating thickness and scattering loss. We present the results of this work, providing useful parameters for high power metal coated fibre laser designs.
Jae M. O. Daniel, Nikita Simakov, Alexander Hemming, W. Andrew Clarkson, and John Haub, "Effects of coating thickness on high power metal coated fibre lasers," Proc. SPIE 10083, Fiber Lasers XIV: Technology and Systems, 100831Q (Presented at SPIE LASE: February 02, 2017; Published: 27 March 2017); https://doi.org/10.1117/12.2250256.
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