Innolux Superluminescent Diode SLD 780-1310nm

Superluminescent diodes (SLDs) are semiconductor optoelectronic devices that are located between lasers (LDs) and light-emitting diodes (LEDs). Similar to laser diodes, SLDs are based on electrically driven pn junctions, which exhibit optical activity when forward biased and generate amplified spontaneous emission over a wide wavelength range. The peak wavelength and intensity of SLD depend on the active material composition and injection current level. SLD is designed to have high one-way amplification for spontaneous emission generated along the waveguide, but unlike laser diodes, feedback is not sufficient to achieve laser action. This was achieved very successfully through the combined action of tilted waveguides and anti reflection coating facets.