SPECTRALLY STABILIZED BROADBAND OPTICAL SOURCE

摘要

Methods and apparatus enable compensation of source light wavelength fluctuations due to instability of a broadband source within an optical sensing system. Tapping off two or more portions of the light output from the source at specific wavelength bands enables power based measurements of these portions. The measurements provide compensation ability by either use as feedback to contr ol the source or for determination of the central wavelength so that adjustments ca n be applied to sensor response signals received at a receiver.