Projects per year
Abstract
We present high average power picosecond and nanosecond pulse delivery at 1030 nm and 1064 nm wavelengths respectively through a novel hollow-core Negative Curvature Fiber (NCF) for high-precision micro-machining applications. Picosecond pulses with an average power above 36 W and energies of 92 μJ, corresponding to a peak power density of 1.5 TWcm-2 have been transmitted through the fiber without introducing any damage to the input and output fiber end-faces. High-energy nanosecond pulses (>1 mJ), which are ideal for micro-machining have been successfully delivered through the NCF with a coupling efficiency of 92%. Picosecond and nanosecond pulse delivery have been demonstrated in fiber-based laser micro-machining of fused silica, aluminum and titanium.
Original language | English |
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Pages (from-to) | 22742-22753 |
Number of pages | 12 |
Journal | Optics Express |
Volume | 21 |
Issue number | 19 |
Early online date | 19 Sep 2013 |
DOIs | |
Publication status | Published - 23 Sep 2013 |
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Projects
- 1 Finished
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New Fibres for New Lasers
Knight, J., Birks, T. & Wadsworth, W.
Engineering and Physical Sciences Research Council
1/10/11 → 31/03/15
Project: Research council
Equipment
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MC2-Electron Microscopy (EM)
Material and Chemical Characterisation (MC2)Facility/equipment: Technology type