Application of modern method of calculating uncertainty to microwaves and opto-electronics

Pavlyuchenko

2021

Micromachines

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Section: Methodsmentioning

confidence: 99%

Uncertainty Evaluation on a 10.52 GHz (5 dBm) Optoelectronic Oscillator Phase Noise Performance

Pavlyuchenko

2021

Micromachines

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“…We followed the modern way of performing the estimation of uncertainty [ 80 ]. We used a method similar to those in optical metrology [ 81 , 82 , 83 ], microwave metrology [ 84 , 85 ] and aerosol metrology [ 86 , 87 ], based on the GUM provided by the Bureau International des Poids et Mesures (BIPM) in [ 79 ]. The measurement uncertainties consist of several components, which are grouped into two main categories.…”

Section: Measurement Uncertainty Of the Brillouin Frequency Shiftmentioning

confidence: 99%

Uncertainty Estimation for the Brillouin Frequency Shift Measurement Using a Scanning Tandem Fabry–Pérot Interferometer

2023

Micromachines

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The expanded uncertainty of the measured Brillouin scattering shift frequencies is essential in assessing the measurements of parameters of various materials. We describe the general operation principles of a Brillouin light scattering (BLS) spectrometer with a high-power laser and a scanning tandem Fabry–Pérot interferometer (TFPI) for material characterization. Various uncertainty components have been analyzed for the BLS spectrometer following the Guide to the Expression of Uncertainty in Measurement (GUM). The expanded relative uncertainty in the measured Brillouin frequency shift of 15.70 GHz for polymethyl methacrylate (PMMA) was estimated to be 0.26%. The calculated Brillouin frequency shift (based on material properties of PMMA) was determined to be 15.44 GHz with expanded relative uncertainty of 2.13%. It was shown that the measured and calculated Brillouin frequency shifts for PMMA agree within their expanded uncertainties. The TFPI-based BLS spectrometer can be used to measure the longitudinal modulus of materials with an expanded uncertainty of 1.9%, which is smaller than that of the ultrasonic velocity-based method (estimated to be 2.9%).

“…Uncertainties are estimated according to modern methods [30,31]. For the measurement of oscillators, it is advisable to refer to a series of publications on an optoelectronic measuring bench [32][33][34]. For electrical measurements, in the microwave domain, we can also consult recent work that estimates the level of uncertainty [35].…”

Section: Uncertainty Evaluationmentioning

confidence: 99%

Frequency and temperature control for complex system engineering in optoelectronics and electronics: an overview

Int. J. Simul. Multidisci. Des. Optim.

2020

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To take advantage of the physical principles of determining parameters, such as frequency stability, noise and also alignment of optical signals, it is necessary to control complex systems. This work allows explaining it through various concrete cases such as the determination of phase noise of microwave oscillators, the control of the temperature of the manufacturing process of optical components. We also discuss the estimation of the uncertainty associated with the measurement results, as it is fundamental to control the error range.