Temperature effects on laser pens?

[fraser7276]

Hi i'm a newb here and am currently in the process of writing an assignment where a laser pen device would be used in places ranging from Afghanistan to Norway.
Does anybody know where i may be able to find information on how extreme temperatures may or may not effect laser pen devices?

Any information would be brilliant thanks

 

[jimdt7]

Well green lasers (532nm) which use DPSS (most of them) are very sensitive to temperature so I would recommend a blue (445nm) or red (635-650nm) :beer:

Jim

 

[fraser7276]

Cheers jim, i assume the same goes for the more basic red laser pens? I don't suppose you would know where i could get some sort of factual data for the temperature effects?

Fraser

 

[jimdt7]

No almost all diode lasers perform better when cold :beer:

Jim

 

[Mrcrouse]

If you want actual data, you best bet is having someone with an lpm meter the same laser at various temperatures.