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22 February 2017 Design and characterisation of SRS filtering optical fibre for pulsed fibre laser beam delivery
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The high performance of fibre lasers is largely due to the outstanding characteristics of fibres as an active medium. However, there is a need to overcome some limits at high optical powers which are imposed by the fibre design. We report on a design and fabrication of a stimulated Raman scattering (SRS) filtering fibre for high average or high peak optical power delivery applications. The fibre geometry is based on the series of circularly arranged high index rod resonators embedded in the silica cladding. The operation principle relies on the resonant coupling of the core and resonators modes. The fabricated fibre demonstrated wide transmission window and filtering of SRS from the output spectra (with the extinction which exceeds 20dB at the Raman Stokes wavelength), robustness for bending and high output beam quality. The fibre has been tested as a beam delivery fibre of a commercial pulsed fibre laser system in order to identify filtering performance and its limitations.
Conference Presentation
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Natasha Vukovic, Jaclyn S. Chan, Philip M. Gorman, Marco N. Petrovich, John R. Hayes, Andy Malinowski, Christophe A. Codemard, and Michalis N. Zervas "Design and characterisation of SRS filtering optical fibre for pulsed fibre laser beam delivery", Proc. SPIE 10083, Fiber Lasers XIV: Technology and Systems, 1008312 (22 February 2017);


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