PowerLine L Laser Series
Rofin-Baasel Lasertech
STARNBERG, Germany, May 24, 2010 — Designed for high-speed micromaterials processing, Rofin-Baasel Lasertech’s PowerLine L laser series is targeted at photovoltaic manufacturing.
The Q-switched solid-state lasers are designed for applications that require high average power and high pulse energy, such as thin-film removal on glass and flexible materials, ablation of dielectric layers, silicon processing, drilling and cutting. In the 1064-nm class, the PowerLine L 300 completes the company‘s laser range for edge deletion applications.
It produces >200 W of laser power at 10 KHz and features an optimized square optical fiber with a 400-µm diameter. Compared to round fibers, square fibers provide higher efficiency by machining a bigger area per pulse.
With selective opening of dielectric layers and direct laser doping, the device is suitable for use in mass production of enhanced solar cells. The frequency-doubled PowerLine L 100 SHG (second harmonic generation) is suitable for use in various research projects. The laser source offers optimum beam characteristics and sufficient power for large production scale. The 532-nm green laser produces near-surface absorption in silicon and can be equipped with a wide range of long-living optical components and fibers.
The optimized fibers produce a top-hat beam profile that provides homogeneous energy distribution within the entire laser spot area.
The Nd:YAG lasers feature high-performance scan heads and are efficiently diode-pumped and designed for industrially reliable 24/7 operation. The PowerLine L 100 SHG uses a high-performance SHG assembly with a harmonic generator crystal for frequency conversion. Q-switching enables peak pulse performance that the company says is 1000 times higher than continuous-wave lasers achieve. The standard configuration includes fiber delivery to the processing head. Optional accessories include fiber outcoupling and scan head assemblies supporting scan speeds of >10 m/s with high precision.
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Published: May 2010