With their emission properties Superluminescent Light-Emitting Diodes (SLEDs) are closing the gap between Laser Diodes (LDs) and Light Emitting Diodes (LEDs).They offer the broadband optical spectra of LEDs and the spatial coherence of LDs. Compared to Laser Diodes and LEDs, SLEDs can be understood as • Spatial coherent broadband laser diodes with a beam-like output

• Temporal incoherent laser diodes with a broadband spectrum

• Speckle-free laser diodes with a short coherence length

• Spatial coherent LEDs with a beam-like output

1. general purpose diodes

2. fast recovery diodes

3. schottky diodes

There are so many different types of diodes. Some of the common examples include light emitting diodes, silicon diodes, zener diodes and so many more.

No. Diodes are diodes. One diode can be USED as a half-wave rectifier. Four diodes can be used to build a bridge rectifier.

The Diodes was created in 1977.