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Coherent Compact Evo AC

The Coherent Compact Evo AC diode laser is a high-power, fiber-coupled system with pure air cooling that delivers continuous-wave (CW) output power of up to 500 W. It is designed for continuous operation in demanding industrial environments and is supplied as a complete unit for easy installation in a standard 19-inch rack. It represents the absolute state-of-the-art for processes requiring beam homogeneity and maximum installation simplicity.

500 W output with air cooling

The innovative design eliminates the need for external cooling units (chillers) or additional fiber cooling, which radically simplifies installation and saves both space and costs.

Homogeneous "Top-Hat" beam profile

The laser provides a beam with a homogeneity of over 90%. This uniform energy distribution is absolutely critical for flawless plastic welding without the risk of local burn-through.

19" rack-mount design (5HU)

The compact and modular chassis enables extremely fast and clean integration into industrial control cabinets and dedicated machines.


Key Features

  • Continuous-wave (CW) output power available in 300 W or 500 W versions.
  • Permanently attached optical fiber terminated with a durable industrial RQB connector (fully compatible with the QBH interface).
  • Wavelength of 980 nm (± 10 nm), ideal for thermal processing of materials.
  • Top-tier energy efficiency (wall-plug efficiency) exceeding 45% thanks to single-emitter diode technology.
  • Advanced control system (DLC) with connection and fiber integrity monitoring, integrated red pilot laser, and remote diagnostics support.
  • Highest level of operational safety – meets the requirements of Performance Level "e" according to EN ISO 13849-1.
Gustav Bazala
Expert advisor

Gustav Bazala

+420 602 342 512

bazala@optixs.cz

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Product description

The Coherent Compact Evo AC debunks the myth that high-power industrial lasers must necessarily be paired with complex water-cooling infrastructure. This model integrates up to 500 W of power into a compact 19" chassis just 5U high. Thanks to its outstanding efficiency exceeding 45%, minimal waste heat is generated, which the integrated fans easily dissipate.

For system integrators (OEMs), this represents a huge advantage. The system functions as a "Plug & Play" device—simply slide it into the rack, connect the power supply and communication bus. Furthermore, the Compact Evo AC shares the same user and communication interfaces as the rest of the Compact Evolution family, so switching between models requires no changes to the higher-level control system. Optional interfaces such as EtherCAT, CANopen, or RS232 are available for process control.

From a process perspective, the biggest selling point is the "near top-hat" beam profile with over 90% homogeneity. When welding plastics or performing localized heating of metals, there are no temperature peaks in the center of the beam, as is the case with a classic Gaussian profile. Material melting occurs uniformly, resulting in perfectly smooth welds with high strength and an impeccable visual appearance.

Areas of application

Thanks to its uniform power distribution, the Compact Evo AC is the perfect choice for:

  • Plastic welding: Fast, clean, and strong joining of polymer parts without the use of adhesives.
  • Selective Soldering and Brazing: Non-contact heat application in the manufacture of electronics or precision mechanics.
  • Heat Treatment: Precise and localized hardening or tempering of surfaces.

Parameters

Coherent Compact Evo AC300 W Coherent Compact Evo AC 500 W
Optical output power 300 W 500 W
Wavelength 980 nm (± 10 nm)
Beam profile Top-hat (≥ 90% homogeneity)
Energy efficiency ≥ 41% ≥ 45% +1
Fiber interface RQB (QBH-compatible) +1
Fiber core diameter / NA 300 µm / 0.22
Power supply 110–240 V (50/60 Hz)
Cooling Air (integrated)
Weight < 35 kg
Dimensions for 19" rack (W x H x D) 19" x 221.5 mm (5U) x 497 mm +1
Protection rating (IP) IP52

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Expert advisor

Gustav Bazala

Gustav Bazala