1000nm 25mW SLD Laser Diode

Superluminescent diodes (SLDs) are semiconductor optoelectronic devices intermediate between lasers (LDs) and light-emitting diodes (LEDs). Similar to laser diodes, SLDs are based on electrically driven PN junctions, which exhibit optical activity under forward bias and produce amplified spontaneous emission over a wide wavelength range. The peak wavelength and intensity of an SLD depend on the composition of the active material and the level of injected current. SLDs are designed to provide high single-pass gain for spontaneous emission generated along the waveguide, but unlike laser diodes, the feedback is insufficient to achieve lasing action.