- An SLD (Super-Luminescent Diode/SLED) light source provides output power equivalent to a laser diode and a wide oscillation spectrum width equivalent to an LED (Light Emitting Diode), as well as low coherence. Since it emits light with a narrow active layer equivalent to a laser diode, it is excellent for joining with optical fiber, and has properties between an LD and LED. A performance comparison of an SLD and LD/LED and spectral example of SLD are indicated below.
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