The main consideration when choosing a fiber optic cable is deciding which type you opt for. Single mode vs. multimode fiber cable is a debate you can answer by considering the cable length(s) required as well a.
[pdf] Spectral bandwidth is a crucial specification in UV-Vis spectrophotometers related to full width at half the maximum intensity (FWHM). The spectral bandwidth plays a significant role in. Our Resolution Calculator will estimate spectral resolution, bandwidth, and dispersion using the grating equation, but we're commonly asked how slit width, spectrometer imaging performance, and detector pixel size affect this. It tells you how “pure” the light is that reaches the detector. On the other hand. Assuming a continuum light source, the bandpass (BP) of an instrument is the spectral interval that may be isolated.
[pdf] 
