Utilising jitter noise in the precise synchronisation of laser pulses

Róbert Mingesz, Zoltán Gingl, Gábor Almási, Péter Makra

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present a laser delay control system based on adaptive averaging which utilises the jitter noise of the laser to stabilise the delay more precisely. The system contains delay lines to measure and control the laser delay and a microcontroller that runs our control algorithm. The algorithm regulates the laser delay on the basis of the average of detected delay values, wherein the steps with which the delay is varied and the averaging length are chosen adaptively, depending on the distance from the target delay. Our complementary numerical simulations show that the jitter of the laser may play a beneficial role here: the error of the delay has a distinct minimum at a non-zero noise level. In a way similar to the dithering principle applied in analogue-to-digital conversion, averaging the noise-modulated detection instances yields a precision in setting the delay that is well beyond the resolution provided by detection time windows, and is close to the theoretical limit determined by the step size of the delay line we applied.

Original languageEnglish
Title of host publicationNoise and Fluctuations in Circuits, Devices, and Materials
DOIs
Publication statusPublished - Nov 23 2007
EventNoise and Fluctuations in Circuits, Devices, and Materials - Florence, Italy
Duration: May 21 2007May 24 2007

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6600
ISSN (Print)0277-786X

Other

OtherNoise and Fluctuations in Circuits, Devices, and Materials
CountryItaly
CityFlorence
Period5/21/075/24/07

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Keywords

  • Anode delay
  • Dithering
  • Jitter
  • Laser
  • Stochastic resonance
  • Thyratron

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Mingesz, R., Gingl, Z., Almási, G., & Makra, P. (2007). Utilising jitter noise in the precise synchronisation of laser pulses. In Noise and Fluctuations in Circuits, Devices, and Materials [66000Z] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6600). https://doi.org/10.1117/12.724686