• Fiber Optics

    FIGURE 1. A fiber-Bragg-grating (FBG) sensing system contains multiple FBGs spaced along a fiber, an amplified-spontaneous-emission (ASE) source, and a programmable spectral processor (PSP) that discriminates between the various FBGs (top). In the PSP, a Texas Instruments MEMS micromirror device permits wavelength-selectable attenuation (bottom).
    A broadband amplified-spontaneous-emission fiber source and programmable spectral processor combine to enable wavelength-multiplexed fiber sensing with great flexibility.
    July 11, 2025