Algorithm based comparison between the integral method and harmonic analysis of the timing jitter of diode-based and solid-state pulsed laser sources
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A comparison between two methods of timing jitter calculation is presented. The integral method utilizes spectral area of the single side-band (SSB) phase noise spectrum to calculate root mean square (rms) timing jitter. In contrast the harmonic analysis exploits the uppermost noise power in high harmonics to retrieve timing fluctuation. The results obtained show that a consistent timing jitter of 1.2 ps is found by the integral method and harmonic analysis in gain-switched laser diodes with an external cavity scheme. A comparison of the two approaches in noise measurement of a diode-pumped Yb:KY(WO4)2 passively mode-locked laser is also shown in which both techniques give 2 ps rms timing jitter.
Metzger , N K , Su , C-R , Edwards , T J & Brown , C T A 2015 , ' Algorithm based comparison between the integral method and harmonic analysis of the timing jitter of diode-based and solid-state pulsed laser sources ' Optics Communications , vol 341 , pp. 7-14 . DOI: 10.1016/j.optcom.2014.11.088
Copyright 2014 The Authors. Published by Elsevier B.V. This is an open access article under the CC-BY license (http://creativecommons.org/licenses/by/3.0/).
This work was supported by the European Metrological Research Programme EMRP under IND 14. The EMRP is jointly funded by the EMRP participating countries within EURAMET and the European Union. N.K. Metzger acknowledges support from the EPSRC Centre for Innovative Manufacturing in Laser-based Production Processes, funded through EPSRC grant EP/K030884/1.
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