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Interesting find. Looks like they have a couple other interesting diodes added to their lineup. Might be going in the UV direction now. GH04C05W9G (5W 435nm) GH0393AA2G (350mW 395nm) GH0406AA2G (600mW 405nm) They have 2 pages, presumably one for display, other for everything...

Only a couple hundred of them were ever made. Due to rarity they're no longer cheap.

I think a member here may still have a few, @Phillip

Personally I think it would be more accurate to say 613nm has more red in it than 607nm having more yellow in it. Semantics. Pictures are difficult to give it justice, on my monitor your 622nm example is closest in color to my 607nm. They did that because they are different diodes. Structure is...

May be worth looking into 622nm diodes. They need to run on a tec by default basically, though not sure how much they cost. Could be an option to give some tolerance on thermals. 607nm is pure orange, though I'd also expect 613nm to be just a different shade of orange. I wouldn't expect it to...

I had the same concerns at first but tried anyway, those work fine.

Their ~545s are 808nm pumped. I have an opt head thats 976nm pumped, but I also have a ~575 thats 940nm pumped. Hard to say its only one crystal.

They did make a batch of the pulsed 8mm 561's. I passed on them then they sold out. They are still pumping things out, just very slowly.

They do produce the crystals themselves, I can ask what they are but I kind of doubt they'll share.

Yeah I'm still working with them on a date for a restock. Currently "probably closer to end of april". Sounds to me like they only have the capacity to make 10-20 at a time. I've expressed interest in 555nm, 561nm and 574nm to them.

For 50mW it's not really special enough. Laserlands has cheap 15mW 685's on ebay in a module with a driver built in. https://www.ebay.com/itm/Laserland-12-35mm-15mW-685nm-Red-Dot-Laser-Diode-Module-LD-3-2VDC-Focusable/193717988132?hash=item2d1a7deb24:g:sdkAAOSwzA9gNaIk Below is the spectro...

Yeah for those 50 bucks is the most I'd pay because of the hours on the head

Divergence is god awful on the higher power models

lasence is legit. They're just suffering the same crystal shortage opt is.

Neither place has any in stock right now. I have one of the 545 line units, just with the line lens removed. Thick anodization so polarity isn't an issue. Dimensions are a mess but I was able to jam it into a cheap pen.

Could wait a couple weeks and gamble on the cheap ones with known issues coming back. I'm buying 10-15 once that happens, I'll keep what I want and offload the rest here.

These are DPSS modules produced by CNI. PGL VI series (12mm) were what they used in the pens, and the PGL-H (20mm)/H1's (26mm) were used in the PGL-III-A, III-C and III-M portable models. CNI only produces 593.5nm in the PGL-H1 series anymore... though they have been known to do custom orders...

I've gotten enough PM's about mine -- I don't think you have much to worry about.

You can just ignore it. Pin 3 is positive, case is negative.

Lab module? Portable? Power? Diode or DPSS? What do you need it to do? You can likely push some of the high power 465nm diodes around that wavelength, at the cost of beam specs. If you're looking for dpss, probably best to just keep an eye out on ebay.