Delivery of high peak power laser light through photonic bandgap fibres

High peak power laser light is used in a wide range of applications, including precision machining of a range of materials and measurement of high speed gas flows. Previously, fibre optic delivery for such applications has only been possible using either large core multimode step-index fibres, or ho...

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Bibliographic Details
Published inProceedings of 2004 6th International Conference on Transparent Optical Networks (IEEE Cat. No.04EX804) Vol. 2; pp. 103 - 106 vol.2
Main Authors Hand, D.P., Shephard, J.D., Jones, J.D.C., Knight, J.C., Russell, P.S.J.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2004
Subjects
Fiber lasers
Gas lasers
Machining
Optical materials
Optical waveguides
Photonic bandgap fibers
Power lasers
Power measurement
Velocity measurement
Waveguide lasers
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Summary:High peak power laser light is used in a wide range of applications, including precision machining of a range of materials and measurement of high speed gas flows. Previously, fibre optic delivery for such applications has only been possible using either large core multimode step-index fibres, or hollow waveguide fibres based on Fresnel reflections; in each case, low beam quality is produced. The high damage thresholds which have been demonstrated with photonic bandgap fibres provide an alternative solution, delivering a very high quality beam. Results obtained with such fibres are presented, with reference to machining and flow measurement applications.
ISBN:0780383435
9780780383432
DOI:10.1109/ICTON.2004.1361978