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Old 05-14-2013, 10:28 PM #17
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Default Re: Find the weak spot in this laser driver

Damage to the optical surfaces of the laser cavity. Laser is basically some stuff that makes light when you put electricity through it, and two ends that have been cut very flat, acting as mirrors to bounce light back into the light making stuff to make it make more light.

When you send too much power through these flat mirrors, they deform, melt, or in some way change in such a way that they no longer reflect light back in. So now, the light-making stuff makes light, but it doesn't bounce back and forth inside the diode. Instead, it just shines out the front. Like an LED.


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Old 05-15-2013, 09:42 AM #18
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Default Re: Find the weak spot in this laser driver

Quote:
Originally Posted by BShanahan14rulz View Post
Damage to the optical surfaces of the laser cavity. Laser is basically some stuff that makes light when you put electricity through it, and two ends that have been cut very flat, acting as mirrors to bounce light back into the light making stuff to make it make more light.

When you send too much power through these flat mirrors, they deform, melt, or in some way change in such a way that they no longer reflect light back in. So now, the light-making stuff makes light, but it doesn't bounce back and forth inside the diode. Instead, it just shines out the front. Like an LED.
Wow this is an answer ! Thank you !
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