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Coherent HighLight DL

Coherent’s HighLight DL series of industrial diode lasers are extremely powerful, fiber-coupled systems delivering continuous-wave (CW) power ranging from 1,000 W to 4,000 W. They are designed as comprehensive (“all-in-one”) solutions for the most demanding industrial applications in metallurgy, the automotive industry, and semiconductor manufacturing. These systems offer unmatched efficiency and reliability in metal heat treatment, such as localized hardening, laser cladding, or brazing.

Extreme Efficiency and Cost Savings

With a wall-plug efficiency of up to 45%, these lasers minimize power consumption and drastically reduce total cost of ownership (TCO).

Cooling without deionized water

The diode modules are conduction-cooled, meaning the system does not require expensive deionized cooling water to operate. This significantly reduces maintenance requirements.

Two industrial designs (HPR and HPS)

The HPR series is optimized for installation in a standard 19" rack, while the HPS series features a freestanding cabinet with a fully integrated water/air cooling unit (chiller).


Key Features

  • Continuous output power scalable from 1,000 W to 4,000 W.
  • Fiber-coupled output with standard industrial QBH or QD connectors.
  • Top-quality beam (BPP 60 or 100 mm*mrad) ensuring precise energy delivery to the material.
  • Homogeneous laser beam profile ideal for area heat treatment.
  • Available wavelengths in the near-infrared range: 940 nm, 980 nm, and 1020 nm.
  • Comprehensive diagnostics and control via Ethernet or optional industrial buses (CANopen, EtherCAT).
Gustav Bazala
Expert advisor

Gustav Bazala

+420 602 342 512

bazala@optixs.cz

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  • We will expertly consult your planned application
  • Our team is able to integrate the product into a larger system
  • We ensure fast delivery of spare parts and local service
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Product description

Coherent HighLight DL high-power diode lasers are designed for maximum production workloads. Thanks to their compact design, they can be easily integrated into existing production cells and robotic workstations, where space-saving is often a priority.

Customers can choose from two technical configurations. The HighLight DL HPR series is designed for system integrators—it comes in a 19" rack-mount format, saving space in control cabinets. The HighLight DL HPS model series, on the other hand, functions as a completely independent "turn-key" station on wheels, with a cooling unit (chiller) already integrated directly into its body.

Both series utilize conductively cooled diode technology. This is a huge advantage in industrial applications, as the system does not require deionized water for cooling (standard distilled water is sufficient for the secondary circuit), eliminating the need for frequent maintenance of deionization filters and reducing the risk of corrosion. The homogeneous beam profile ensures perfect heat distribution, which is a critical parameter in metal surface treatments.

Areas of application

HighLight DL sources are optimized for processes requiring the precise delivery of large amounts of heat:

  • Laser cladding: Creation of highly durable protective layers against wear and corrosion on metal components.
  • Heat Treatment / Hardening: Precise localized hardening of surfaces with minimal deformation of the base material.
  • Brazing: Joining galvanized sheets in the automotive industry with high visual quality of the joint.
  • Welding: Joining metals and thermoplastics with high speed and efficiency.

Parameters

Specifications HPR Series (19" Rack) HPS Series (Integrated Chiller)
Rated power (CW) 1,000 W / 2,000 W / 3,000 W / 4,000 W +1
Wavelengths 940 nm / 980 nm / 1020 nm (depending on model)
Beam quality (BPP) 60 or 100 mm*mrad +1 < 100 mm*mrad
Fiber interface QBH, QDQBH, QD
Fiber core diameter 600 µm / 800 µm / 1000 µm 1000 µm
Power supply 3x 230/400 V or 3x 277/480 V
Cooling concept External (requires connection to a cooling circuit) Fully integrated water/air chiller
Laser weight < 70 kg 380 kg (including chassis, without media)
Dimensions (L x W x H) approx. 652 x 483 x 267 mm approx. 670 x 1050 x 1760 mm

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Expert advisor

Gustav Bazala

Gustav Bazala