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Picosecond Laser

Photonics Spectra
Apr 2011
Eolite LasersRequest Info
 
Eolite Systems has added a new picosecond laser, the Hegoa, to its rod-type fiber laser family. The high-power pulsed fiber laser is suitable for use in a wide range of fine micromachining applications, including cutting, engraving, thin-film ablation, wafer processing, and microdrilling and scribing in industrial fields such as photovoltaics, semiconductors, microelectronics, LEDs and flat panel display processing. It has a rugged optomechanical design for long-lifetime operation, and it operates at 1030 (infrared), 515 (green) or 343 (ultraviolet) nm, with 30-ps pulse duration from 0.5 to 6 MHz. Based on proprietary and scalable rod-type fiber technology, it reaches high average power of up to 60 W at 1030 nm with beam quality of M2 <1.3. Features include linear polarization and a repetition rate from 200 kHz to 10 MHz.


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GLOSSARY
cutting
The process of forming a lens to a given pattern, or of cutting a piece of glass along the line of scratch.
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.
linear polarization
See plane-polarized light; polarization.
polarization
With respect to light radiation, the restriction of the vibrations of the magnetic or electric field vector to a single plane. In a beam of electromagnetic radiation, the polarization direction is the direction of the electric field vector (with no distinction between positive and negative as the field oscillates back and forth). The polarization vector is always in the plane at right angles to the beam direction. Near some given stationary point in space the polarization direction in the beam...
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.
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