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Coherent Combines Excellent Beam Quality with Compact Package in New 55W and 70W CO2 OEM Lasers

Santa Clara, Calif., September 15, 2004 – Coherent Inc. (Santa Clara, CA) (Nasdaq: COHR) unveils new low-power CO2 lasers that feature excellent beam quality and a very small ootprint. Called the DIAMOND™ C-55 and DIAMOND C-70, these OEM lasers provide more than 55W and 70W of output power, respectively, at 10.55- to 10.63-µm. Their M2 <1.2 (<1.3 for C-70)beam quality makes them ideal for medium- to high-volume marking, engraving and desktop manufacturing.

The C-55 was built using the same laser cavity as its predecessor, the GEM-50. However, it features an innovative platform where the power supply RF driver is integrated into the same housing as the laser head. This results in a compact, robust package that can withstand the most demanding environments. The C-55 provides 10% higher power than its predecessor and comes in a single, compact package, providing ease of integration and enabling previously unattainable desktop-sized, high throughput marking and engraving systems. These innovative lasers use the same technical approach of integrating the RF module with the proven, high-performance laser cavity as the widely successful GEM-30.

“The advantages of the C-55 are numerous. You get the agility and ease of integration that comes with a compact integrated platform, as well as the reliability and dependability that comes with using a field-proven technology,” said Ron Straayer, product line manager at Coherent. “Plus, you get a laser with higher power levels at a lower price point.”

Available in both air- and liquid-cooled models, the C-55 measures just 537.1 mm by 92.5 mm by 154 mm (21.2 in x 3.6 in x 6.0 in) for the air-cooled version and 537.1 mm by 92.5 mm by 103 mm (21.2 in x 3.6 in x 4.04 in) for the liquid-cooled version. The C-55 has a superior rise time of less than 60 µsec. It runs on 48 VDC (25 amps) and has an RJ-45 ethernet connector.

Also available is the 70W version of the same platform. The C-70 uses an asymmetrical optical cavity to obtain 70W of power from the same compact and integrated package. The C-70 is available in both elliptical (uncorrected) and circular (corrected) versions.

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