Hello folks!
In the past few months, myself and a few other users discovered some strange properties of DPSS lasers, particularly 589nm and 532nm units.
When cooled down, certain DPSS lasers display anomalous behavior, including multiline activity and main-line shifting.
This is believed to be caused by defective mirror coatings.
It is possible that there was a 'bad batch' of DL Spartan 589s created recently. I have one of them... and by 'bad batch', I mean 'awesome because they emit 583.8nm when cold.'
So if you purchased a DL Spartan 589 recently, please try cooling it down on an AC vent, in a freezer (BRIEFLY), or outside in the cold.
Then check using a diffraction grating for any extra colors or color changes!
You can do this same procedure with a 532, or any other DPSS wavelength!
In the past few months, myself and a few other users discovered some strange properties of DPSS lasers, particularly 589nm and 532nm units.
When cooled down, certain DPSS lasers display anomalous behavior, including multiline activity and main-line shifting.
This is believed to be caused by defective mirror coatings.
It is possible that there was a 'bad batch' of DL Spartan 589s created recently. I have one of them... and by 'bad batch', I mean 'awesome because they emit 583.8nm when cold.'
So if you purchased a DL Spartan 589 recently, please try cooling it down on an AC vent, in a freezer (BRIEFLY), or outside in the cold.
Then check using a diffraction grating for any extra colors or color changes!
You can do this same procedure with a 532, or any other DPSS wavelength!
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