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FrozenGate by Avery

589nm vs. 594nm Yellow Wavelength Comparison

Which wavelength do you own or plan to buy?

  • 589nm

    Votes: 170 62.0%

  • 594nm

    Votes: 24 8.8%

  • Both

    Votes: 41 15.0%

  • Neither

    Votes: 39 14.2%
  • Total voters
    274
liveforphysics said:
That's happened each time so far I've tried to get a 575nm or 577nm from Alibaba... I was hoping the 589nm would be a more available and mature product, fingers crossed!
Click to expand...
The 575s and 577s got discontinued by lasence quite a long time ago
 





If you want to sell your 577nm anytime my friend.... I would be honored and be first in line to buy.
 
To all as I’m getting messages. I’m holding on to the modules I have as no more look to be coming.
 
Hi, I am George, am from Greece and there are no points for sale for yellow laser pointer so I bought one from other country.
I have no idea whether it is 589 or 593.5 nm colour, how can I know? Thanks a lot!
 
You need a known reference. Order some LEDs near each wavelength to compare. 594 will be more orange than 589 but both will look amber. Or get a spectrometer. Or build your own. Get a prism and measure the displacement. If you have a hene you can use that as a single calibration point.

Or enjoy it and don’t bother. If you want yellow look for tinker on eBay.com. And order a 574 from him. It looks very yellow. Tinkerco? has a longer name I forget search the forum.
www.instructables.com

DIY Low Cost Spectrometer

DIY Low Cost Spectrometer: Being a final-year undergraduate student majoring in physics, I believe that labs and practical experiments are just as important as the theory when it comes to subjects like physics. Lab sessions and experiments provide tangible results which often…
www.instructables.com www.instructables.com

It really is as simple as basic math and measuring an angle. You really don’t need software.

This one is easiest to follow. Good luck. Personally I’d not bother and just enjoy it.
 
If you paid less than $100 it most likely 593.5nm if it was closer to $300-400 its most likely a 589nm
 
paul1598419 said:
I'll have to check that with my spectrometer when I get the chance.
Click to expand...
People have already checked and so have I. These are the classic 1064+1342nm SFG’s from years ago that have made an affordable resurgence. Ironic considering this method is actually less efficient and more unstable than the 589’s. And they were more expensive than 589’s too. These modules are still unstable at low temperatures but I haven’t ran into mode hopping like they normally suffer from.
 
CurtisOliver said:
People have already checked and so have I. These are the classic 1064+1342nm SFG’s from years ago that have made an affordable resurgence. Ironic considering this method is actually less efficient and more unstable than the 589’s. And they were more expensive than 589’s too. These modules are still unstable at low temperatures but I haven’t ran into mode hopping like they normally suffer from.
Click to expand...

Haven't noticed any mode hopping on mine. But, don't usually let it run more than a couple of minutes.
 
This thread inspired me to attempt a wavelength measurement using a cheap Amazon spectroscope. I don't think I got an accurate measurement, but it was fun to try. The lasers are 488, 505 and 591 nominally. PXL_20240531_192421574~2.jpgPXL_20240531_192702730.MP~2.jpg
 
ChromeCaviar said:
This thread inspired me to attempt a wavelength measurement using a cheap Amazon spectroscope. I don't think I got an accurate measurement, but it was fun to try. The lasers are 488, 505 and 591 nominally. View attachment 78009View attachment 78010
Click to expand...
Nice, those are pretty cool. You may want to move the measurement lines a bit to the left lol. Oh well

If u wanna, a classic 532nm dpss would be very accurate no matter what, could be used as a baseline, oh what am I saying..

I just got some cylindrical lenses for beam correction and its pretty fun to try, even though my beam dot is now way off lol.
 
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