The design of a superluminescence diode is equivalent to a laser diode without a resonatorIts radiation is based on an amplified spontaneous emission and offers the brightness of laser diodes combined with the low coherence length of LEDs. This equals a larger optical bandwidth of the emitted radiation.
Similar to edge-emitting laser diodes, SLEDs have a p-n junction and are operated under forward bias. Unlike edge emitters, SLEDs do not have a resonator; thus, a standing wave cannot form. This leads to the aforementioned spontaneous amplified emission.
Arima Lasers now also manufactures SLEDs at 670 nm and 830 nm with an output power of up to 10 mW. These diodes, which are assembled in the proven 5.6 mm TO housing, are available at LASER COMPONENTS. The products are successfully used in optical coherence tomography, fiber sensor technology, optical measurement technology, and as illumination sources for imaging methods in medical technology.
Source: LASER COMPONENTS GmbH