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Delivery of high-power nanosecond and picosecond pulses through a hollow-core Negative Curvature Fibre for micro-machining applications
By: Jaworski, P.; Hand, D. P.; Shephard, J. D.; Knighf, J. C.; Birks, T. A.; Wadsworth, W. J.; Maier, R. R. J.; Yu, F.;
2013 / IEEE
This item from - IEEE Conference - 2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC - High power short pulsed lasers have become widely used for micro-machining, providing high precision and high quality, but the lack of truly flexible beam delivery systems limits applications (in general) to relatively small planar components. To address this, various designs of microstructured fibres have been developed and tested in recent years, with both Hollow-Core Photonic Crystal Fibres (HC-PCFs)  and large mode area solid core fibres providing partial solutions (for wavelengths around 1μm, pulse lengths of tens of ns, and pulse energies of up to 1 mJ). In each case they can overcome power delivery limitations due to nonlinear effects and damage threshold dominant in conventional solid core silica fibres.
General Topics For Engineers
Photonics And Electrooptics
Power, Energy And Industry Applications
Photonic Crystal Fibers
Fields, Waves And Electromagnetics
Engineered Materials, Dielectrics And Plasmas
Communication, Networking And Broadcast Technologies
Components, Circuits, Devices And Systems