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Ablaze

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Hi, new to this forum.

I've been messing around with cheap commercial lasers for a while now and it has occurred to me that it would be really nice to be able to verify what frequency a laser is actually outputting at.

For instance, I have a cheap red laser pointer here and I would like to know if it is 635nm like it says, or really 658nm like I suspect it is.

Remembering back to physics class, we used diffraction gratings to measure light emissions. Can I use them to measure the wavelength of low powered lasers? (<=20mw)?

What about something like this? Scott Resources & Hubbard Scientific Spectroscope :: Light & Sound :: American Educational Products :: Teacher Supply :: Artist Supply Source

.. or is that too cheap?
 

lasersbee

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Sep 20, 2008
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to the Forum....
Don't forget to read the FAQs...the Stickies
and the Forum Rules..

You will need to do a little research and reading
on the Forum.
The testing of Laser wavelengths has been discussed
before a number of times...

Enjoy your stay...


Jerry
 




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