DIAMOND CO2 Lasers
DIAMOND family of sealed CO2 Lasers, with power from Watts to Kilowatts for processing materials ranging from paper to metal.
Measuring less than 1500 mm x 500 mm x 400 mm - including its integrated power supply - the DIAMOND E-1000 is the most compact sealed CO2 laser currently available at the 1 kW power level.
Due to its compact size, the E-1000 is easily integrated into a wor
kstation or robotic tool.
Coherent offers the broadest portfolio of completely sealed CO2 laser products in the market. Our DIAMOND family of sealed CO2 lasers are available in a wide range of models, with output powers ranging from 20W to 1000W. Their no-maintenance design makes them a robust and highly reliable 'laser engine'. And, with market proven Designed in Reliability at its foundation, DIAMOND CO2 lasers offer the best power/performance/size ratio for a sealed CO2 laser.
In addition to our standard products, Coherent develops customized high and lower power CO2 laser solutions for commercial, industrial, and military applications. With extensive system and subsystem design and development capability, we offer complete subsystem solutions to select customers. These solutions can include lasers, embedded controls, remote telemetry and diagnostics, as well as extensive optical, electronic and mechanical design expertise.
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DIAMOND CO2 lasers are available at various wavelengths and numerous power levels. Please click on the lasers below for more information on our C, E, G, GEM and K-series CO2 lasers.
| Power | CO2 Laser | |
| Technology | Waveguide, CW | Slab Discharge, Pulsed |
| 20 Watt | C20 Air Cooled CO2 Laser | |
| 30 Watt | C30 Air Cooled C30 Liquid Cooled C30 Air Cooled 9.3 C30 Liquid Cooled 9.3 | |
| 40 Watt | C40 Air Cooled C40 Liquid Cooled C40 Air Cooled 10.2 C40 Liquid Cooled 10.2 | |
| 55 Watt | C55 Air Cooled C55 Liquid Cooled | |
| 70 Watt | C70 Air Cooled C70 Liquid Cooled | |
| 100 Watt | GEM 100 Air Cooled GEM 100 Liquid Cooled GEM 100 Liquid Cooled 9.6 GEM 100 Liquid Cooled 10.2 | G-100 CO2 Laser G-100 i 9.4 CO2 Laser |
| 150 Watt | E-150 CO2 Laser | |
| 225 Watt | K-225 i 9.4 CO2 Laser | |
| 250 Watt | K-250 CO2 Laser | |
| 300 Watt | K-300 CO2 Laser | |
| 400 Watt | E-400 CO2 Laser E-400 i 9.4 CO2 Laser | |
| 500 Watt | K-500 CO2 Laser | |
| 1000 Watt | E-1000 CO2 Laser | |
Designing Quality into CO2 Lasers
At Coherent, quality means more than just rugged premium lasers delivering operational reliability; quality extends from the initial process of specifying a new product, all the way through service of units in the field, worldwide. To learn more about how Coherent ensures quality through every phase of the design, production and support of our CO2 lasers, place your cursor over each of the graphics below.
Designed in Reliability
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Slab Technology
Slab laser technology offers excellent beam quality and low cost of ownership for sealed CO2 lasers. In our sealed CO2 lasers the slab laser gas is excited by RF radiation in a narrow space in between 2 rectangular electrodes. Laser power is defined by the electrode space. Laser gas is diffusion cooled by the electrodes, so the gas does not need to be externally cooled – no gas flow is necessary. The laser can be operated sealed off, with no external gas supply. RF solid state technology excites the laser gas to an average output power of more than 1kW. The slab cavity emits a laser beam which is narrow in one axis and long in the other axis. External beam shaping optics forms the beam to excellent mode quality. Typical M² values are <1.2. Other benefits are its pulsing capabilities. Latest Slab laser developments offer pulse frequencies up to 200 kHz at low pulse fall times. In the lower frequencies, peak power of up to 2.5-3x of the nominal laser power is possible. Pulses with faster fall time deliver more of the total pulse energy above the material processing threshold. Just as superior beam quality leads to tighter spatial focus, faster fall time translates into tighter temporal focus. Both effects maximize the ratio of usable power/total power. The end result is both faster cutting and reduced HAZ (heat affected zone), as well as faster piercing during drilling and cut initiation. After decades of continuous improvement the latest slab lasers from Coherent offer designed in reliability and a MTBF of >60,000 hours.
Waveguide Technology
Waveguide technology is used for sealed CO2 lasers equal to or below 100W. The laser beam is generated in a small ceramic waveguide between two electrodes. The laser beam is guided through the ceramic wave guide and delivers excellent mode quality. The cross section of the wave guide defines the beam shape and quality of the laser beam. If it is square shape, no external beam correction is required. Typical M² values for this technology are <1.2. Lengthening the gain waveguide resonator is the only practical way to scale a waveguide CO2 laser to higher power without sacrificing beam quality. In order to have a small and compact package, the wave guide is folded. Having a long laser cavity delivers a laser with excellent short-term and long-term stability. The solid state RF power supply is integrated to the laser head. This reduces space requirements and simplifies integration. Additionally, it eliminates the cost and complexity of using a shielded RF umbilical which could be a source of early failure in stressful operating environments. The CW laser design may be directly pulsed up to 25 kHz, with very short pulse fall times. Applications which require fast pulsing or cycling benefit from that feature. After decades of continuous improvement Coherent wave guide lasers offer designed in reliability and a MTBF of >70,000 hours.
