发明名称 |
LASER APPARATUS FOR MATERIAL PROCESSING |
摘要 |
<p>Apparatus for material processing, which apparatus comprises a rare-earth doped fibre ( 1 ), a laser diode source ( 2 ), a short pulse laser ( 18 ) and a controller ( 9 ), wherein the rare-earth doped fibre ( 1 ) is pumped by the laser diode source ( 2 ) to provide optical radiation ( 10 ), and the optical radiation ( 10 ) emitted by the rare-earth doped fibre ( 1 ) is combined with optical radiation ( 11 ) emitted by the short pulse laser ( 18 ), the apparatus being characterised in that the controller ( 9 ) synchronizes the optical radiation ( 10 ) emitted from the rare-earth doped fibre ( 1 ) with the optical radiation ( 11 ) emitted by the short pulse laser ( 18 ) to provide a plurality of pulses ( 5 ) comprising a pre-pulse ( 21 ) and a main pulse ( 22 ), the average peak power ( 23 ) of the pre-pulse ( 21 ) being greater than the peak power ( 24 ) of the main pulse ( 22 ).</p> |
申请公布号 |
EP1618635(B1) |
申请公布日期 |
2007.10.03 |
申请号 |
EP20040730285 |
申请日期 |
2004.04.29 |
申请人 |
SPI LASERS UK LIMITED |
发明人 |
WOODS, STUART, WAYNE;PARKER, DAVID, GARETH;APPLEYARD, ANDREW, PAUL;VARNHAM, MALCOLM, PAUL |
分类号 |
H01S3/23;B23K26/06;H01S3/00 |
主分类号 |
H01S3/23 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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