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well now that julian has clarified what you meant by multimode/singlemode operation, personally, i would choose singlemode operation as i like my lasers to be simple,

laserglow safety glasses are some of the best safety glasses, you should have a look at them

i mean new as in new to lasers, its important to get the correct safety equipment before messing around with high powered lasers, also it is better to start off with lower powered lasers if you are new to this hobby, if you are not new then i apologize for assuming.

since someone already necroposted, i would like to say how nice those GLP pens look, did you build them?

do you have the correct laser safety glasses?

why are there a bunch of new people wanting high power blue lasers now

as far as i am aware, there are no 7.5W single mode diodes commercially available, the highest power single mode laser diode is a 1-2W sharp 405nm diode

that was an engineering sample diode

there IS a yellow laser diode, it lases at 565nm and was made using MgZnCdSe https://www.photonics.com/Articles/Laser_Diode_Emits_Yellow-Green_Light/a13986

i have found a cheap supplier, they can also coat the mirrors on to crystals for me which means i probably wont need expensive external mirrors

recently, ive been working on some Pr:YLF modules, im thinking of selling them, would any of you be interested in a 523nm Pr:YLF module? i will be making oranges but i just want to know if any of you would be interested in 523nm modules, the price of the modules will be around $700-800

That could be possible, I think its called two photon vision when it happens in the eye

My eyes behave weirdly when exposed to IR. 808nm and 850nm both look like a deep red to me. 900nm looks like a very deep red to me but it is still visible. 940nm looks deep blue to me? (Only when from a laser), it looks deep red from an led, 980nm looks cyan to me (also only from a laser). It...

best way to flex a 589nm laser!

The short batch of those 473-478nm diodes

hello, i am interested in buying ANY 593.5nm laser module/pointer or 473nm laser module/pointer. no matter the condition, even if it only slightly works.

its because you kept on calling 532nm dpss lasers, "fake diodes". they are using a totally different process than diodes. they are not fake lasers, they are very real and have better specs than diodes (usually)

i feel like this is a troll

hello, i am interested in buying a CNI GLP 589nm 5mw pointer, no matter the condition, as long as it lases, even if it is very old or lases a mw or two. pls pm me and we can discuss if you want to sell one, thank you in advance

I think you got scammed, a 5w laser shouldnt cost that much