Broadband Light Source - Inphenix Inc. https://www.inphenix.com/en/broadband-light-source-modules/ A broadband light source, also known as a superluminescent source is a superluminescent diode that is perfect for OEM integration. #Broadbandlightsources are utilized for ultrahigh-resolution optical coherence tomography, passive component testing, and multi-channel fiber Bragg grating interrogation. The light output may be via continuous internal-to-external fiber or by optical fiber adapter for removable pigtail interconnectivity. Central wavelength windows of operability range from 700nm to 1700nm, delivering high power densities across wide FWHM bandwidths.