The Ultimate Revelation Of Superluminescent Diodes

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The Superluminescent Diode (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.

Superluminescent Diodes

The Principles of SLD Operations:

The Unique property of Superluminescent Diodes is the mixture of Laser-Diodes like output power and brightness with the board LED like an optical spectrum. This kind of combination is allowed by high optical gain in semiconductor laser materials and its wide optical spectrum.

To see different applications of Superluminescent diodes (SLDs), check our blog: Application of Superluminescent diodes

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