A scalable arbitrary waveform generator for atomic physics experiments based on field-programmable gate array technology
| Autor: | S. Donnellan, Richard Hobson, Ian R. Hill, William B. Bowden |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
business.industry Computer science Digital-to-analog converter Arbitrary waveform generator 01 natural sciences Atomic clock 010305 fluids & plasmas law.invention Printed circuit board Direct digital synthesizer Gate array law 0103 physical sciences business Field-programmable gate array Instrumentation Computer hardware Jitter |
| Zdroj: | The Review of scientific instruments. 90(4) |
| ISSN: | 1089-7623 |
| Popis: | We present a field-programmable gate array (FPGA) based control system that has been implemented to control a strontium optical lattice clock at the National Physical Laboratory, UK. Bespoke printed circuit boards have been designed and manufactured, including an 8-channel, 16-bit digital to analog converter board with a 2 μs update rate and a 4-channel direct-digital synthesis board clocked at 1 GHz. Each board includes its own FPGA with 28 digital output lines available alongside the specialized analog or radio frequency outputs. The system is scalable to a large number of control lines by stacking the individual boards in a master-slave arrangement. The timing of the digital and analog outputs is based on the FPGA clock and is thus very predictable and exhibits low jitter. A particular advantage of our hardware is its large data buffers that, when combined with a pseudoclock structure, allow complex waveforms to be created. A high reliability of the system has been demonstrated during extended atomic clock frequency comparisons. |
| Databáze: | OpenAIRE |
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