Brightness amplifiers with PRF up to 100 kHz

Trigub, M. V.; Shiyanov, D. V.; Vlasov, Vasilii V.

doi:10.1109/edm.2014.6882534

Cited by 10 publications

(1 citation statement)

References 6 publications

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“…The estimation of difference between light and dark image fragment can be used to determine contrast, for example, Weber contrast [36]. Field of view and resolution are characteristics of laser system, but they also in uence on image result [37][38][39]. There is signal-to-noise ratio.…”

Section: Introductionmentioning

confidence: 99%

Investigation of ASE contribution to copper bromide amplifier output signal

Vasnev,

Trigub

2023

Preprint

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The paper is devoted to research the single-pass operating mode of active element on copper bromide vapors and time dependence of ratio «signal/ASE». The results show how the single-pass radiation power depends on time delay between ASE pulse and moment when the input signal enters to active element. Light waveforms (ASE, input signal, output signal) are recorded at each time delay. The minimal time delay was 5.2 ns, power radiation in this case was 3.47 W. The radiation power was reducing as the time delay was increased in increments of about 2 ns. The waveforms prove that the active element output signal contains two components: the first – ASE (amplified spontaneous emission), which is formed as result of the active substance atom excitation and their further spontaneous transitions; the second – single-pass radiation amplified by means of inverse population of the active media. The waveforms allow to estimate the useful signal to noise ratio or other words «signal/ASE». The highest gain is provided with the lowest time delay due to the population inversion is maximum in this case.

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Section: Introductionmentioning

confidence: 99%