LDM series (500 - 4,000 W)Technical data LDMComponents of a LDM - Laser Head - Micro Processing Control unit - Cooling unit & Power Supply - Optics

Diode laser system LDM


The fiber-coupled OEM modules of the LDM series meet the highest expectations in terms of compactness and reliability. The LDM is a 19-inch rack mounted laser, the size of a PC. It includes the diode stacks, a fiber-coupling unit, the power supply and microprocessors, used to monitor and control the laser.

Compact and cost efficient

By cutting back to basic functions and forgoing a graphical user interface, the fiber-coupled diode lasers of the LDM series are very compact and cost-efficient. Laserline also offers PC software to control the laser via Ethernet.

Technical data LDM


Optical specification
max. output power 500 W 1,000 W 2,000 W 3,000 W 4,000 W
Minimum beam quality 20 mm∙mrad 30 mm∙mrad 40 mm∙mrad 60 mm∙mrad 100 mm∙mrad
Optical fiber 400 μm [NA 0.1] 600 μm [NA 0.1] 400 μm [NA 0.2] 600 μm [NA 0.2] 1.000 μm [NA 0.2]
Other laser output powers available, tailored to the applications.
Min. focus at f = 150 mm 0.3 mm 0.45 mm 0.6 mm 0.9 mm 1.5 mm
Fiber length 10 m, 20 m, 30 m, 50 m, 100 m and more on request
Fiber-coupling unit LLK-B/15 mm or LLK-D/Auto
Power stability <+/- 2 % over 2 hours
Wavelength range 900 nm to 1,070 nm, others upon request
 Mechanical specification
Weight Approximately 50 kg
Seize 19” rack mount, 5U (220 mm), depth 636 mm
 Connection data
Voltage 100-246 V, 1 Phase 50-60 Hz 400 VAC. 210 – 230 VAC, 480 VAC on request. 3 phase, PE, 50 or 60 Hz.
Power consumption
at nom. Power, approx.
2.0 kW 3.5 kW 6.0 kW 8.0 kW 9.5 kW
Cooling requirements max. 1.5 kW 2.5 kW 4.0 kW 5.0 kW 5.5 kW
Cooling lines Connector diameter 10 mm outside
External inputs Digital 24 V, analog power control 0 – 10 V, safety interlocks
 Operating conditions
Temperature 10 – 45 °C operational, 5 – 65 °C storage
Humidity max. 75 % @ 25°C, non condensing
Protection rating IP54
Safety class Laser safety class 4 according to EN 60825-01
 Options
Interface Profibus DP, EtherNet/IP, RS232
Optics Laserline optics or commercial optics for every application
Others Teleservice, pilot laser, pyrometer, CCD camera, software for PC, beam scanner, special
wavelength for pumping applications
 Warranty and lifetime
Warranty 5 years on diode laser elements, 2 years on system
Diode cooling Active for highest power density and reliability
Uptime Typically > 99.5 %

All rights reserved. We reserve the right for errors and alterations.

  • Laser Head
  • Micro Processing Control unit
  • Cooling unit & Power Supply
  • Optics

Beam Source


laserline-pumpmodulThe beam source contains several stacks of individual diode bars. The number of bars per stack and the total number of stacks depends on the laser output power and the required beam quality. Using a straightforward, patented technology, the beams of the diodes are overlaid to form a single laser beam that is coupled into an optical fiber.

In most cases, the modular structure of the laser head allows the system to be fitted with additional stacks if extra power is needed.

Control and Supply


laserline-kontrolleinheit-diodenlaserThe compact, mobile supply units, type LDF (VG Power, VG Flex) and LDM controls and monitors the laser head and its peripheral equipment. All components needed to operate the diode laser, including the power supply, cooling unit, and control are modular, easily replaceable components.

Mobile supply units allow new ways of thinking for location independent redundancy concepts. Thus, a separate spare laser can hedge for several production lasers in case of need. The exchange is carried out in a few minutes by trained staff and preventive maintenance or repair can be carried out without the interruption of the production.

More than 70 system data are continuously collected and processed by the system. The integrated failure management works in two stages, allowing the user to react when certain alarm limits are reached before the laser shuts down when error limits are exceeded. In conjunction with the Teleservice Hotline – more than 65% of reported malfunctions can be corrected directly – and the inherent stack management, a high availability of the diode laser system is given.

Accessories and options for diode lasers, type LDF
  • PC visualization through LL-control software
  • Wavelength selection feature e.g. for optimizing the process
  • Beam switch for up to 6 exits, e.g. the multi-station operation with multiple fiber optic cables
  • Additional unit for advanced dust and humidity protection
  • Electrical connection of external cooling devices
  • Integrated optics chiller with separate cooling circuit
  • Advanced programming features
  • Integrated laser power measurement
  • Fieldbus gateway for various protocols
Accessories and options for diode lasers, type LDM
  • Wavelength stabilization for pump applications
  • Control box for LDM
  • Pilot laser for easy visualization
  • Power meter for the manual measurement of the output power

Control and Supply


kuehleinheit_leistungsversorgungThe compact, mobile supply units, type LDF (VG Power, VG Flex) and LDM controls and monitors the laser head and its peripheral equipment. All components needed to operate the diode laser, including the power supply, cooling unit, and control are modular, easily replaceable components.

Mobile supply units allow new ways of thinking for location independent redundancy concepts. Thus, a separate spare laser can hedge for several production lasers in case of need. The exchange is carried out in a few minutes by trained staff and preventive maintenance or repair can be carried out without the interruption of the production.

More than 70 system data are continuously collected and processed by the system. The integrated failure management works in two stages, allowing the user to react when certain alarm limits are reached before the laser shuts down when error limits are exceeded. In conjunction with the Teleservice Hotline – more than 65% of reported malfunctions can be corrected directly – and the inherent stack management, a high availability of the diode laser system is given.

Accessories and options for diode lasers, type LDF
  • PC visualization through LL-control software
  • Wavelength selection feature e.g. for optimizing the process
  • Beam switch for up to 6 exits, e.g. the multi-station operation with multiple fiber optic cables
  • Additional unit for advanced dust and humidity protection
  • Electrical connection of external cooling devices
  • Integrated optics chiller with separate cooling circuit
  • Advanced programming features
  • Integrated laser power measurement
  • Fieldbus gateway for various protocols
Accessories and options for diode lasers, type LDM
  • Wavelength stabilization for pump applications
  • Control box for LDM
  • Pilot laser for easy visualization
  • Power meter for the manual measurement of the output power

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