PCO-6131 | 125A Output Current

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125 A Pulsed/CW/QCW OEM Laser Diode Driver Module


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The PCO-6131 is a compact, OEM-style high power pulsed/CW current source designed to drive diode lasers, bars and arrays in pulsed, QCW or CW modes. It delivers up to 125 A of output current with pulse widths from less than 100 ns to DC and pulse repetition frequencies from single-shot to 500 kHz at duty cycles up to 100%.

The PCO-6131 features a user-adjustable variable rise time control. This innovative feature allows the user to adjust the rise time within a range of 2.5 μs by means of a PCB-mounted potentiometer to optimize the driver’s rise time for the user’s application.

The PCO-6131 is based on a hysteretic, average current, switch-mode regulator. This type of regulator is a variable-frequency, variable pulse width design which maintains current in an energy storage inductor between a minimum and maximum level. This architecture provides a high-performance driver in a small form factor, with high operating efficiency and low stored energy.

At 125 A output current, the stored energy in the driver is approximately 7 Joules, dramatically lower than the stored energy in comparable linear current sources.

  • 1 A To 125 A Output Current
  • Less than 100 ns to DC Variable Pulse Width
  • 20 V Maximum Output Voltage
  • 2.5 kW Maximum Average Output Power
  • User-Adjustable Variable Rise Time
  • Repetition Frequency Single-Shot to 500 kHz

The PCO-6131 is designed to drive diode lasers, bars and arrays in pulsed, QCW or CW modes. The rugged, compact design and high power capability of the PCO-6131 make it an excellent OEM choice for driving high power laser diodes.

Compliance Voltage


Max Current Amplitude


Rise/Fall Time


Max Frequency

500 kHz

Pulse Engine (Trigger)


Remote Control


Form Factor



Ambient Air



Pulse Width

<100 ns to DC

Shipping Dimensions (in)


Shipping Weight (lbs)


Accessory Kit
Stripline by the Foot