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ArcticMyst Security by Avery

best beam quality

Joined
Nov 14, 2007
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Which diode laser has the best beam quality. I am looking for TEM00. gaussian profile, color does not matter.
 





Zeebit

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Aug 27, 2012
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DPSS lasers have the best beam profile. For a diode laser I think its a 405nm diode.
 

DrSid

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Jul 17, 2010
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DPSS lasers have the best beam profile. For a diode laser I think its a 405nm diode.

Well depends on power .. my 400mW DPSS green has many additional modes .. I would go for 405nm or red .. I mean data recording diodes .. DVD or BRD, as they are designed to have perfect beams, unlike many DPSS lasers.
 

Zeebit

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Yeah but he did not specify a power rating so I immediately thought of DPSS lasers.

How come these single mode diodes produce a rectangular shape inside the dot? I have noticed this with my 405nm and 650nm diodes.
 
Joined
Nov 14, 2007
Messages
61
Points
8
it probably has something to due with the lasing material being square shaped on a die.
 




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