Old 11-17-2010, 10:58 PM #1
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Default Does a diode's power output degrade over time?

I purchased a Optotronics 150mw pointer 2nd hand from another member here last year. It has been great but when I tested it using a laser meter in a local lab nearby I noticed it was putting out around 50-80mW.

This could be due to using some batteries that were not brand new, but do most diodes in laser pointers degrade in output over time?

Just wondering..


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Old 11-18-2010, 01:21 AM #2
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Default Re: Does a diode's power output degrade over time?

Yes, all lasers degrade over time. Depending on the age, your pointer could have easily degraded. Laser pointers are extremely susceptible to heat-induced degradation since there is usually little or no heatsinking or temperature control of any kind.
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Old 11-18-2010, 09:56 AM #3
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Default Re: Does a diode's power output degrade over time?

Agree with EF, and also with the "awesomeness" in his binary code on his sig!
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