Compatible with iPhone, iPod touch, and iPad. Requires iOS 4.0 or later.Overview:
FibreTool is a simple and convenient utility for use in laboratory or field experiments involving fibre-optic communication systems.
The following features are provided:
i) conversion of power values between mW and dBm;
ii) conversion between peak-to-peak voltage and average electrical power into a 50 Ω load for either a sinusoidal or square-wave input, which is useful when checking that RF drive signals do not exceed maximum instrument input powers;
iii) calculation of either optical extinction ratio, optical modulation amplitude or average optical power when two of these values are specified;
iv) calculation of the first-order dispersion parameter of a single-mode fibre, for a specified source wavelength, fibre zero-dispersion wavelength and fibre zero-dispersion slope;
v) calculation of the first-order dispersion of a single-mode fibre link, for a specified fibre first-order dispersion parameter, source spectral width and link length;
vi) conversion between spectral width in the wavelength and frequency domains, for a specified centre wavelength;
vii) conversion between wavelength and frequency;
viii) display of wavelength and frequency for a specified channel number in the ITU 100 GHz grid;
ix) calculation of Q factor and BER for specified mean values and standard deviations of "1" and "0" amplitudes;
x) calculation of BER for a specified Q factor;
xi) calculation of the lowest frequency component in a PRBS for a specified PRBS maximum run length and NRZ bit rate, which is useful when considering the low-frequency cut-off point of components such as DC blocks and AC-coupled amplifiers.
NEW in version 1.3:
xii) conversion between link length and time delay for propagation in standard SMF;
xiii) conversion between RF cable length and time delay for a specified square root of the relative permittivity of the dielectric.
All calculations assume wavelengths in vacuo.What's new in Version 1.3:
Added SMF and RF cable delay calculation.
Optimised for iOS 5.More Info:
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