New Laser Diode Driver from ALPhANOV for Precision Pulse Shaping

Posted Apr 18, 2018 by ALPhANOV

ALPhANOV has launched a new laser diode driver for the temporal processing of optical pulses. It generates any Pulse Shape with ns pulse duration. It is a multifunctional unit with integrated AWG (Arbitrary Waveform Generator), TEC controller & multiple Pulse Delay Generators for signal synchronization.

The Shaper laser diode driver range allows the users to get the best performance from their device while ensuring that it is protected at all times. The new product completes this range by adding very high precision temporal pulse shaping capabilities. In particular, it allows to generate any pulse shape between 500 ps and 2 μs with a repetition rate of up to 250 MHz, a temporal resolution of 500 ps and an intensity dynamic of 48 dB up to 2 A.

The Shaper board includes a multifunctional synchronization unit with AWG (Arbitrary Waveform Generator), 3 built-in delay generators for synchronizing external instruments or other external laser amplifiers, and a TEC controller to regulate the temperature of the laser diode.

This driver is available in two versions:

  • The "external modulation" version drives the laser diode with square waveforms and generates a shaping signal that is compatible with external devices such as acousto-optic or electro-optic modulators.
  • The "direct modulation" version allows the pulse shape to be applied directly to the laser diode and a new functionality allows the user to remove spurious effects such as "gain switch” relaxation peaks for optimal results.

Key features:

  • Direct modulation of ns laser pulses with any shape
  • 0 to 2 A output current with 16 bit/48 dB/30 μA resolution
  • Integrated pre-configured mounting sockets for type 1 butterfly laser diode (type 2 on request)
  • User set pulse shape from 500 ps to 2 μs with 0 - 250 MHz repetition rate
  • Integrated TEC controller with over temperature protection
  • Special mode for laser diode “gain switch peak” suppression
  • Built-in pulse AWG with internal or remote triggering
  • Integrated Pulse Delay Generator
  • USB interface with intuitive GUI software
  • Available in two versions direct or external modulations