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50 Amp QCW Pulsed Laser Diode Driver with Integrated TEC Controller for Nd:YAG Lasers

  • Pulsed Laser Diode Driver Top View 50A
  • OEM Pulsed Laser Diode Controller Board
  • 50 Amp Pulsed Laser Diode Controller

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sku / item#: RLS/SDC-50A-PULSE
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Key Features
  • Designed and Optimized for Laser Diode Pumping of Nd:YAG lasers and other Diode Pumped Solid State Lasers
  • Adjustable Output Power up to 50 Amps, 6 Volts
  • QCW Pulse Width 50 µs to 500 µs; up to 50 Hz Rep. Rate
  • Compact, Small Footprint Design
  • Offered by OEM Tech, a Laser Lab Source Marketplace Seller
  • Sold & Supported in North America by: LaserDiodeSource.com, part of the
    Laser Lab Source Marketplace Group
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MODEL RLS/SDC-50A-PULSE
PRICE Request Price
Laser Diode Output Specifications
  • Maximum Output Current: 50 Amps
  • Maximum Output Voltage: 4 to 6 Volts (with 12 VDC to 15 VDC Input Respectively)
  • Output Mode: Pulsed / QCW
  • Pulse Width: 50 µs to 500 µs *
  • Pulse Repetition Rate: Up to 50 Hz *
  • Rise / Fall Time: < 25 µs / < 15 µs
  • Output Accuracy: 1%
  • Output Stability: 1%
  • * Can Be Factory Modified; Inquire for Details
TEC Output Specifications
  • Maximum TEC Current: 5 Amps
  • Maximum TEC Voltage: 10 Volts
  • TEC Temperature Control Range: 10ºC to 40ºC
  • TEC Temperature Control Accuracy / Stability: 0.1ºC
  • TEC Temperature Sensor Input: 10 kΩ NTC Thermistor
Control Modes
  • RS-485 Mode: Real-time control of the SDC-50A by RS-485 interface.
  • Stand-Alone Mode: Control settings saved in on-board memory.
  • On-Board Control: Current and temperature set with trimpots.
Pulse Synchronization Modes
  • Fully Internal: Pulses triggered by internal clock.
  • Fully External: Pulses width is set and triggered by external signal.
  • External Trigger: Pulse is triggered externally, pulse width set by the value programmed in device memory.
general specifications
  • Input Voltage: 12 VDC to 15 VDC
  • Operating Temperature: 10ºC to 40ºC
  • Storage Temperature Range: -20°C to 60°C
  • Humidity: 0 to 90%, Non-Condensing
  • Size: 95 mm x 75 mm x 30 mm
  • Weight: 0.1 kg

Product Overview:

QCW Pulsed Laser Diode Driver + TEC Temperature Controller

The SDC-50A is a pulsed laser diode driver designed for controlling the pump laser diodes used in Nd:YAG and DPSS lasers. It is a fast-switching, low-noise and very efficient current source. This driver and TEC controller is for QCW pulse mode operation, and was developed specifically for diode pumping applications.

RS-485 or Stand-Alone Control Modes

The controller is easily configured via RS-485 interface. The user sets the pulse width and frequency, output current, temperature set point, and temperature stabilization mode. The operational control mode is set either to Remote Control mode or Stand-Alone mode:
  • Remote Control mode – requires active RS-485 connection to send the commands. The command list is short and intuitive, and provide full control of the SDC-50A.
  • Stand-Alone mode – does not require the active RS-485 connection; the SDC-50A begins operating immediately after the power is applied to the board, and operates per the parameters set in the device memory.

    • Multiple Pulse Frequency and Synchronization Modes

    The pulse output can be triggered and synchronized in three ways: from the internal clock; the pulse is triggered by an external signal and the pulse width is equal to external synchronization signal duration; the pulse is triggered externally, and with the pulse width is set by the value programmed in device memory.

    Built-In High Power Temperature Controller

    The integrated 5 Amp / 10 Volt Peltier controller allows control of high power thermoelectric coolers for laser diode temperature stabilization laser during operation. The temperature sensor input is for 10 kΩ NTC thermistors (Negative Temperature Coefficient). The temperature set point is user adjustable, and the controller can be set so that the temperature must stabilize before the pulse current source begins operation.

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