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Old 02-25-2016, 04:28 AM #1
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Question Nm range of “china” green laser pointer converted to IR?

I've got a 5mw Chinese laser pointer that I removed the pumping crystal from to make it into an IR pointer.

I’m going to get a 1mw green laser and convert it, so it’s a bit safer than my 5mw one.

I want to wear laser goggles, but I need to know the Nm of the laser, so I can buy the right goggles.
the laser pointer I'd be converting would be 532nm in it's green form.

Thanks for any info.


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Old 02-25-2016, 04:51 AM #2
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Default Re: Nm range of “china” green laser pointer converted to IR?

Converting a true 5mW 532nm and a true 1mW 532nm into an IR pointer won't make it much safer. The IR pumping is till going to be many times over the safe limit, generally ~5mW.

The 532nm process is as follows:
808nm(pump diode)->1064nm->532nm

-Alex
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Old 02-25-2016, 02:03 PM #3
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Default Re: Nm range of “china” green laser pointer converted to IR?

Quote:
Originally Posted by Hap View Post
Converting a true 5mW 532nm and a true 1mW 532nm into an IR pointer won't make it much safer. The IR pumping is till going to be many times over the safe limit, generally ~5mW.

The 532nm process is as follows:
808nm(pump diode)->1064nm->532nm

-Alex
Just to clarify because you may be misunderstood - the safe limit is 5mW. The IR pump is potentially capable of several hundred mW at 808nm.
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Old 02-25-2016, 03:31 PM #4
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Default

Quote:
Originally Posted by diachi View Post
Just to clarify because you may be misunderstood - the safe limit is 5mW. The IR pump is potentially capable of several hundred mW at 808nm.
Yep! Sorry my wording may have been off

-Alex
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