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- Nov 9, 2012
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I noticed the raw output of a laser diode I have shows these 'moire' like patterns or shadows. What wold you suggest is the problem or the cause of the issue?
I did wipe the window a bit to make sure theres no dust particles for the beam to diffract from. Is it a bad diode? Is it dust I am not cleaning away? Does it matter too much once I focus and collimate the beam to create a pointer?
Also, how do you create a true TEM00 output beam using laser diodes with elliptical output?
I did wipe the window a bit to make sure theres no dust particles for the beam to diffract from. Is it a bad diode? Is it dust I am not cleaning away? Does it matter too much once I focus and collimate the beam to create a pointer?
Also, how do you create a true TEM00 output beam using laser diodes with elliptical output?