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Principles And Applications Of Superluminescent Diodes


The #superluminescentdiodes (SLD) is a Semiconductor device to emit low-coherence light of a broad spectrum like LED, But high brightness like LD, Laser Diode. The Light Emitted in a narrow active layer similar to LD can be efficiently incident to the fiber. SLD is usually used as an incoherent light source for optical sensors like OCT and Optical fiber gyroscopes.

The mechanism of #sld emission is the same as the semiconductor laser (LD) and light-emitting diode (LED). Emission occurs by moving forward current to a P-N junction. When a power supply is connected to the player positive and the N-layer negative, Electrons enter from the N-side and holes from the p-side.