Superluminescent diodes for optical coherence tomography (SD-OCT) - Inphenix https://www.inphenix.com/en/superluminescent-diode-devices/ A superluminescent diodes for optical coherence tomography emits low coherence but high brightness light. #Superluminescentdiode is applied in smooth and high intensity broadband optical spectrum. They don't have built-in optical feedback mechanism. SLD is a #semiconductoropticalamplifier with no input signal, where weak spontaneous emission into the waveguide mode is followed by strong laser amplification.