Stability studies of nanosecond light sources based on blue ultra bright LEDs

TL;DR

This paper investigates the long-term stability of nanosecond blue LED light sources, demonstrating their consistent performance over 10^10 pulses with less than 1% variation in light yield.

Contribution

It provides empirical evidence of the stability and durability of InGaN/GaN blue LEDs for high-frequency pulsed applications.

Findings

Light yield remains stable after 10^10 pulses

Timing characteristics do not deteriorate over extensive pulsing

Long-term light yield stability is better than 1%

Abstract

We present the results of stability studies of nanosecond light sources based on single quantum well (SQW) InGaN/GaN ultra bright blue LEDs. It is shown that the light yield of such light sources and their timing characteristics don't deteriorate even after 10^10 total pulses. The longterm stability of the sources light yield is better than 1%.