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Fiber Laser

EuroPhotonics
Oct 2009
SPI Lasers UK Ltd.Request Info
 
SPILaser.jpgSPI Lasers UK Ltd.’s redEnergy is a 40-W pulsed continuous-wave fiber laser that provides >20-kW peak power, 25 selectable waveforms with a full power range of 30 to 500 kHz, a reduced power range of 1 to 30 kHz and output stability of 5%. Beam diameter is 3.1 mm, and peak emission wavelength is 1062 ±3 nm. The instrument is suitable for use in applications including black anneal color marking on stainless steel, paint layer removal on mobile phone keypads and marking integrated circuits. Users can tune peak power, pulse energy and pulse frequency. Other applications include solar cell and silicon processing, ablation, scribing, thin-film cutting and dual-head marking. The high-speed device is bitmap-marking compatible.


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GLOSSARY
fiber laser
A laser in which the lasing medium is an optical fiber doped with low levels of rare-earth halides to make it capable of amplifying light. Output is tunable over a broad range and can be broadband. Laser diodes can be used for pumping because of the fiber laser's low threshold power, eliminating the need for cooling.
scribing
The process of perforating a silicon or ceramic substrate with a series of tiny holes along which it will break. Nd:YAG or CO2 lasers are now routinely used.
solar cell
A device for converting sunlight into electrical energy, consisting of a sandwich of P-type and N-type semiconducting wafers. A photon with sufficient energy striking the cell can dislodge an electron from an atom near the interface of the two crystal types. Electrons released in this way, collected at an electrode, can constitute an electrical current.
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