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...
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...
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.
Below is the spectro...
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.