Bandwidth means the width of a range of optical frequencies. A common definition of spectral width is the full width at half maximum (FWHM).

The bandwidth--distance product is the product of length and maximum data rate of a fiber-optic link.

The time--bandwidth product is the product of temporal and spectral width of a pulse. It tells one how close a pulse is to the transform limit.

Bandwidth-limited pulses are pulses with a duration as short as possible with their optical spectrum; they are also called transform-limited or ...

The gain bandwidth is the width of the optical frequency range in which significant gain is available from an optical amplifier.

The phase-matching bandwidth is the width of an optical frequency range in which some nonlinear interaction can be efficient due to phase matching.

The modal bandwidth is the maximum optical transmission bandwidth (limited by intermodal dispersion) which can be used in a telecom fiber.

The minimum time–bandwidth product depends on the pulse shape, and is e.g. ≈ 0.315 for bandwidth-limited sech2-shaped pulses and ≈ 0.44 for Gaussian-shaped ...

13 мая 2009 г. · The pulse duration and the optical bandwidth are usually defined as a full width at half-maximum (FWHM) values. In quantum mechanics, however, ...

It is explained why it is meaningless to specify some signal-to-noise level without the corresponding measurement bandwidth.