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LithPulser: An open-source pulse generator with 1 ns time resolution based on the Red Pitaya STEMlab 125-10 featuring

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LithPulser is an open-source digital pulser using a field-programmable gate array (FPGA) for precise timing control in physical science experiments. It offers 1 ns resolution on 14 channels with real-time conditional logic for complex experimental sequences.

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Area of Science:

  • Physical Sciences
  • Experimental Physics
  • Instrumentation

Background:

  • Experiments in physical sciences often demand high temporal resolution.
  • Controlling experimental sequences with conditional logic enhances experimental capabilities.
  • Existing solutions may lack the required precision or flexibility.

Purpose of the Study:

  • To introduce LithPulser, an open-source digital pulser system.
  • To provide high temporal resolution and conditional logic control for experimental sequences.
  • To enable advanced experimental methodologies in physical sciences.

Main Methods:

  • Development of a digital pulser based on a field-programmable gate array (FPGA).
  • Utilized the affordable Xilinx Zynq-7010 FPGA on a Red Pitaya STEMlab board.
  • Implemented 1 ns time resolution across 14 digital output channels.
  • Integrated real-time conditional logic reactive to input events.

Main Results:

  • Achieved 1 ns temporal resolution on 14 digital output channels.
  • The system supports up to 125 MHz bandwidth and 4.2 s sequence duration.
  • Incorporated 16 sequence play controls, including real-time conditional logic.
  • Demonstrated suitability for 'trial until success' experimental scenarios.

Conclusions:

  • LithPulser offers a versatile and precise solution for advanced experimental control.
  • The open-source FPGA-based design lowers accessibility barriers for researchers.
  • Enables complex, time-critical experiments with real-time adaptive capabilities.