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CNI releases 689nm DPSS


RedCowboy

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Was this supposed to be 589nm ? 689nm is a deep red.
 

Lifetime17

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Hi,
689/690 is a deep red ,i have a custom labby built for me by lazeerer who makes our drivers. He did this sometime back when he was still around the forum. I used it once and its still in the shipping box.

Rich:)
 

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Encap

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Was this supposed to be 589nm ? 689nm is a deep red.

689nm lasers have been available for a long time both DPSS and direct diode more recently---as the CNI data sheet says: --689nm is widely used in communication, medical treatment, scientific research, etc

From 2011 -- " We report for the first time a coherent red radiation at 689 nm by intracavity sum-frequency generation of the 1319- and 1444-nm laser-lines of two Nd:YAG lasers. Using type-II critical phase matching KTP crystal, 689-nm red laser was obtained by 1444- and 1319-nm intra-cavity sum-frequency mixing, and output power of 156 mW was obtained." See: https://link.springer.com/article/10.1134/S1054660X1113010X

Used in Photodynamic Therapy of eye problems like macular degeneration---optical clocks, gas sensing systems for strontium detection, laser cooling of strontium

That CNI has a data sheet probably just means CNI sees a market for or has a customer for low cost Chinese made 689nm lasers.
 
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Hap

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Was this supposed to be 589nm ? 689nm is a deep red.
Hello RC,

Nope, this was meant to be 689. As Encap mentioned it seems like these have been around for awhile, and CNI finally saw a market for the :yh:

-Alex
 




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