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Description

FLD-4U flashlamp drivers are a family of laser power supplies for pulsed flashlamp-pumped solid-state lasers such as Nd:YAG, Er:YAG, CTH:YAG, Alexandrite etc. or IPL. 

FLD-4U drivers are all-in-one solutions and embed all the necessary subsystems - capacitor bank, capacitor charging power supply, simmer supply and discharge circuit (discharge circuits). FLD-4U can be equipped with up to two output channels and up to two flashlamps connected in series can be connected to the every output. In that way each FLD-4U is able to drive up to four flashlamps. 

Drivers are 19"-rack mounted. Height is 4U, depth is around 500mm. All the important parameters - output voltage, pulse width and pulse repetition rate and others - can be adjusted via front panel user interface (7" color display and touch panel) and RS-232 machine interface.

Please, check other our products, like discharge circuits, simmer supplies, capacitor chargers and FLD-kit - set of modules, which could be combined into a 1 kW to 4 kW (up to 8 kW on request) power supply for a pulsed flashlamp. 

FLD-4U Flashlamp Driver

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Specifications

Output Current (max): 1000 A
Output Voltage (max): 900 V
Average Output Power: 8000 W
Product: SDC-4U diode driver
Input Voltage: 110–240 VAC
Input Frequency: 50/60 Hz
Input Phases: 1 phase
Regime Of Operations: Pulsed
Maximum Buffer Voltage (VMAX): Up to 500 V (model dependent, user selectable)
Maximum Output Voltage: Model dependent
Maximum Output Current (IMAX): Up to 400 A (model dependent, user selectable)
Output Current Adjustment Range: 10–100 % of IMAX
Buffer Voltage Adjustment Range: 30 V – VMAX
Pulse Width Adjustment Range: 50–300 µs (wider on request)
Pulse Repetition Rate: Up to 50 Hz
Maximum Average Output Power: 1500 W
Rise Time: <20–30 µs typically
Slow Start Adjustment Range: 0–50 µs
Capacitor Bank Capacitance: 5 mF to 20 mF (model dependent)
Recommended Diode Cable Inductance: <500 nH
Recommended Diode Cable Cross-section: 4 mm²
Recommended Diode Cable Length: <50 cm (up to 2 m acceptable)
Recommended External Capacitor Bank Cable Cross-section: 4 mm²
Recommended External Capacitor Bank Cable Length: <50 cm
Quick Discharge Resistors: 4 kΩ
Cooling: Forced-air cooling with built-in fans
User Interface: 10
Interfaces: RS-232 / RS-485
Synchronization Inputs: 1
Synchronization Outputs: 3
Operating Temperature Range: +10 … +40 °C

Got questions about specs? Use the inquiry form to ask.

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Features

  • Pulsed output, variable pulse width
  • Partial discharge scheme (complete discharge as an option)
  • Up to 8 kW output power
  • Up to 900 V max. output voltage
  • Display/touchscreen based user interface + RS-232 machine interface
  • Embedded Pockels cell driver as an option

Applications

  • Pumping of high‑power Nd:YAG and Nd:YAG‑like solid‑state lasers
    • Primary application as a high‑current, high‑voltage pulsed driver for diode bars and stacks used to pump Nd:YAG, Nd:YVO4, Nd:YLF, and similar gain media.
    • Suitable for industrial, medical, scientific, and military solid‑state laser systems that require reliable multi‑hundred ampere pump currents.
  • Q‑switched laser systems with external Pockels cell driver
    • Integrated capability to power and control an external Pockels cell driver enables compact Q‑switched laser architectures.
    • Used in systems where precise timing between pump pulses and Q‑switch gating is critical, such as micromachining, rangefinding, and nonlinear optics experiments.
  • Industrial laser material processing
    • Driving pump diodes in Nd:YAG and related lasers for applications such as welding, cutting, drilling, marking, engraving, and surface treatment.
    • High pulse energy and repetition rate (up to 50 Hz and above, model dependent) support medium‑to‑high throughput production tools.
  • Laser micromachining and precision manufacturing
    • Stable pulsed diode driving for solid‑state lasers used in micro‑drilling, thin‑film structuring, scribing, trimming, and fine cutting of metals, ceramics, and semiconductors.
    • Fast rise/fall times and adjustable pulse width (typ. 50–300 µs) allow accurate energy delivery to sensitive components.
  • Scientific research lasers
    • Pumping of laboratory Nd:YAG and Nd‑doped crystal lasers for spectroscopy, nonlinear optics, parametric generation, frequency conversion, and amplifier chains.
    • Internal/external synchronization makes it suitable for pump‑probe setups, laser‑plasma studies, and timing‑critical experiments.
  • Laser rangefinding and LIDAR transmitters
    • Driving high‑peak‑power pump diodes in compact, Q‑switched Nd:YAG transmitters for rangefinders, survey LIDAR, 3D scanning, and mapping systems.
    • Multiple synchronization outputs allow timing coordination with detection electronics and scanning optics.
  • Medical and aesthetic laser systems (pump stage)
    • Pump source driver for Nd:YAG‑based medical lasers used in dermatology, vascular treatments, tattoo removal, dentistry, and surgical applications (final certification depends on system integrator).
    • Robust protections (overcurrent, over‑temperature, incorrect buffer voltage) support high uptime in clinical environments.
  • Pulsed laser test stands and diode characterization
    • Use as a flexible pulsed current source for burn‑in, reliability testing, and characterization of laser diode bars and stacks at high current and voltage.
    • Adjustable current (10–100% of IMAX) and buffer voltage, plus user‑configurable pulse parameters, make it suitable for R&D and production QA setups.
  • High‑energy solid‑state laser pumping for amplifiers and oscillators
    • Driving large diode arrays that pump regenerative or multi‑pass amplifier stages in research and industrial high‑energy laser systems.
    • High average power capability (up to 1500 W, model dependent) supports multi‑stage amplifier chains and long‑pulse energy storage.
  • Nonlinear frequency conversion systems
    • Pump driving for Nd:YAG lasers used to generate green, UV, or IR wavelengths via SHG, THG, OPO, or OPA stages.
    • Stable, repeatable pumping improves conversion efficiency and long‑term stability of frequency‑converted outputs.
  • Laser marking, coding, and engraving equipment
    • Integration into compact Nd:YAG marking lasers used for date coding, serial numbering, traceability marks, and decorative engraving on metals and plastics.
    • Synchronization interfaces (1 input, 3 outputs) facilitate coordination with galvo scanners and motion controllers.
  • Defense, aerospace, and range instrumentation lasers
    • Pump driver for rugged Nd:YAG lasers used in target designation, rangefinding, airborne or vehicle‑mounted LIDAR, and telemetry systems.
    • Wide‑range AC input (110–240 VAC) and robust protection features support deployment in varied electrical infrastructures.
  • OEM integration into turnkey solid‑state laser platforms
    • Embedded in commercial laser heads and racks as the core diode power unit, replacing multiple discrete power supplies and capacitor banks.
    • Customizable output configurations and options for multiple outputs allow tailoring to specific OEM architectures.
  • Educational and training laboratories
    • Use in university and technical institute labs for hands‑on training on solid‑state laser design, pumping schemes, and Q‑switching techniques.

Frequently Asked Questions

How can the important parameters of FLD-4U be adjusted?
All the important parameters - output voltage, pulse width and pulse repetition rate and others - can be adjusted via front panel user interface (7'' colour display and touch panel) and RS-232 machine interface.
How many output channels can FLD-4U be equipped with?
FLD-4U can be equipped with up to two output channels.
What are the features of FLD-4U?
FLD-4U has pulsed output, variable pulse width, up to 8 kW output power, up to 900 V max. output voltage, display/touchscreen based user interface + RS-232 machine interface, and embedded Pockels cell driver as an option.
What is FLD-4U?
FLD-4U is a family of flashlamp drivers (laser power supplies) for pulsed flashlamp pumped solid-state lasers such as Nd:YAG, Er:YAG, Alexandrite etc.
What is the height and depth of FLD-4U?
FLD-4U drivers are 19''-rack mounted. Height is 4U, depth is around 400mm.

Got more questions? Use the inquiry form to ask the supplier directly.

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