What are typical spectral parameters that characterize a broadband light source? Select all that apply.

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BlackTom AI · Accepted Answer

When evaluating what spectral parameters characterize a broadband light source, we focus on attributes that describe its spectrum rather than its total output or state of polarization.
Option 1: Optical power. While optical power tells you how much light energy is emitted, it is not a spectral parameter and does not describe the distribution of power across wavelengths. A broadband source can have varying power levels without changing its spectral shape, so this is not a spectral characteristic.
Option 2: Center wavelength. This is a core spectral parameter for any light source, indicating the wavelength around which the majority of the spectral power is concentrated. For broadband sources, the center wavelength helps define where the spectrum is centered in the wavelength domain.
Option 3: Polarization. Polarization describes the orientation of the electric field, not the spectral content. It can be relevant for certain applications, but it is not a spectral parameter that characterizes the spectrum itself.
Option 4: Spectral width. This parameter describes the spread of wavelengths around the center wavelength, i.e., how broad the spectrum is. It directly characterizes the broadband nature and is essential in describing the spectral content.
In summary, the true spectral parameters among the options are center wavelength and spectral width, while optical power and polarization do not describe the spectrum itself.

BN5102 Practice quiz for OCT

What are typical spectral parameters that characterize a broadband light source? Select all that apply.

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