Old 08-15-2012, 10:39 AM #1
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Default -30 Celcius Working Laser

Hello everyone,

I am looking for a green laser which can operate at -30 Celcius. I do not need laser to be much powerful.

i've looked around for many products but i could not find any.

Can anybody help me with my problem ?

Thanks,
Çağan


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Old 08-15-2012, 10:54 AM #2
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Default Re: -30 Celcius Working Laser

You might try out this one, but I don´t know anyone around who has it
Omicron High Power Green Laser Pen Pointer 532nm
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Old 08-15-2012, 11:05 AM #3
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Default Re: -30 Celcius Working Laser

Why not just use a regular green laser and use a small heating element to keep it warm? In fact, even insulating the laser might allow it to keep warm under it's own heat.
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Old 08-15-2012, 11:07 AM #4
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Default Re: -30 Celcius Working Laser

^ Good suggestion!

Thought he is looking for a ready2go laser though.


Edit: Just saw that the suggested laser is -Out of Stock-
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Old 08-15-2012, 11:16 AM #5
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Default Re: -30 Celcius Working Laser

Thanks for your suggestions guys,

My first choice is ready to go, but if there is a ready to go "heater module", i may try to use it. But i do not want to mess with the laser. Plus heater will need controls maybe some sort of thermostat to make it on at low temperatures and make it off at normal and elevated temperatures.

Do you know any ready2go heater modules for lasers?

By the way DJNY i've checked your suggestion but i was unable to get a datasheet, it just says extreme temperature repeteadly, and i do not think it is reliable.
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Old 08-15-2012, 11:37 AM #6
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Default Re: -30 Celcius Working Laser

Z-Bolt is a very reputable company. You might check out these
Astronomy Green Laser - Lithium Powered, Free Carry Pouch

Contacting the staff should help for specific questions.
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Old 08-15-2012, 12:15 PM #7
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Default Re: -30 Celcius Working Laser

I am just waiting for the temperature specification answer for
BTG-10G Tactical Green Laser Pointer - EOF, EOD, IED Marking

By the way i can pay higher than 100$. But i can not afford thousand of dollars for something like bemeyers lasers.
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Old 08-15-2012, 02:59 PM #8
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Default Re: -30 Celcius Working Laser

If you do not keep the ktp reasonably warm, the green output will drop severely. I'm sure there are module made for the job, but for $100. :/
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Old 08-15-2012, 07:32 PM #9
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Default Re: -30 Celcius Working Laser

Dear Meatball,

Would you please give me a link to the heater module ?
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Old 08-15-2012, 07:43 PM #10
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Default Re: -30 Celcius Working Laser

^ I sent you a PM before, did you get it?
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Old 08-15-2012, 10:08 PM #11
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Default Re: -30 Celcius Working Laser

The diode will heat up from inside. If the diode is powerful enough it could warm the crystal in order to get a decent green output.
You need to keep the laser in your warm pocket anyway and take out when you use it. The batteries don't like minus 30 Celsius too.
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Old 08-15-2012, 10:38 PM #12
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Default Re: -30 Celcius Working Laser

^I was thinking the batteries would have more of an issue with the cold than the laser itself.
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Old 08-16-2012, 05:43 AM #13
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Default Re: -30 Celcius Working Laser

Batteries are no issue, i know some quite well batteries that work at low temperatures, plus if necessary i can supply the voltage from other sources.
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Old 08-16-2012, 05:58 AM #14
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Default Re: -30 Celcius Working Laser

Why not just get a cheap laser and wrap it in some insulation? I bet after a few minutes of warming up the pump diode will generate enough heat to get it back to operating temperatures. Of course then you need to be careful you don't overheat the laser.
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