Originally Posted by
jimbonzzz
Osram advertises their Laser Diodes to last for an average of 40,000 hours. But it also depends on how the jammer is driving the diode and dissipating heat. Here's what they say:
Introducing Indium in the active laser region almost completely eliminates early spontaneous laser diode failure by pinning the crystal defects responsible for dark line defects. As a result, aging today is typically a slow continuous process of degradation. Average lifetime is over 40000 hours. Such high reliability reduces the downtime and maintenance costs of the end product. The lifetime of a laser diode depends mainly on the ambient temperature and optical output power. A temperature decrease of 20 K leads approximately to a four times higher life time. Otherwise, reducing the optical power to half of the maximum power, the lifetime is increased by a factor of three.
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