UV Fiber Laser Offers High Precision, High Throughput Processing
February 5, 2013
Santa Clara, Calif., February 5, 2013 – A unique new ultraviolet fiber laser from Coherent,
Inc. (Santa Clara, CA) (Nasdaq: COHR) offers the precision processing capabilities of a short-pulse, picosecond laser,
together with the high throughput speed characteristic of a Q-switched, diode-pumped, solid-state laser. This is because
the Daytona™ 355-20 delivers over 20W of power in sub-nanosecond pulses, at repetition rates of over 1 MHz (at 355 nm).
In addition, the Daytona produces a TEM00 (M² <1.3) output beam, making it ideal for precision micromachining.
Moreover, Daytona is a highly flexible platform that can be adjusted over a broad operating range to match the exact needs
of a particular application. For example, pulsewidth can be adjusted from <1 ns to 20 ns, while repetition rate can go from
single shot to over 2 MHz.
The key to micromachining without peripheral thermal damage – a heat affected zone (HAZ) – is a short wavelength to drive cold
photoablation and a short pulsewidth to limit thermal flow during this ablation. Traditional Q-switched UV lasers deliver
pulsewidths of tens of nanoseconds creating an unacceptable HAZ in many applications. Until Daytona, the only alternative was
to use lasers producing 10’s of picoseconds, but these did not have sufficient output power in the UV to support high throughput
industries. Daytona is thus the first laser to deliver the optimum combination of precision and power for these applications.
Applications that can benefit from Daytona’s unique operating regime span high precision processing of a wide range of materials
in high throughput applications. Specific examples include wafer dicing, scribing and drilling (especially with low κ materials),
glass scribing for touch panels and LCDs, touch screen patterning, as well as thin film scribing for photovoltaics (solar)
Founded in 1966, Coherent, Inc. is a world leader in providing photonics based solutions to the commercial and scientific research
markets, and is part of the Standard & Poor’s SmallCap 600 Index and the Russell 2000.
For more information about Coherent, including product and financial updates, visit Coherent website at
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