Hello guys,
I'm new to the 405nm lasers.I did some search on forum but I couldn't find a 1W 405nm laser.I have 1W 445nm from dragonlasers and very happy with it.My question is how much power you can get maximum from a 405nm handheld laser?
I saw 400mw 405nm from o-like and rayfoss for 100usd which is so cheap.I wonder if anyone on the forum can make 1W or higher as possible?

The highest violet i have ever seen is a little less then 900mW. But you must harvest the diode yourself. and the play around with the driver a bit to get the proper current. There is a good graph here 12x BR DIODES

I searched laserglow,o-like and rayfoss but they selling 400mw maximum.It seems those laser running on lower current to increase the diode life right?
I'm also curious about the total diode life of those laser.

You have a good point. But im saving up to make a 850mW violet. Ill let you know how it turns out.

people are usually pushing these to 600-700mW's in DIY builds and afaik none of them has died yet.
btw I don't know why all comercial lasers are only 400mW (but you should be able to pot-mod them a bit)

Hmmm, Maybe ill put a thread together to see how far we can push one of these little diodes.

I think they are 400mw to increase the diode life but I don't know exactly.Who can make me a good 700-800 DIY and how much it costs?

Thanks.If you ask me I want a 1W violet but I think It would die so quickly because of high current.Ofcourse 5000h diode life such as greens would be dream for violet with those currents and harvested diodes I guess.

That thread exists. It's actually the first sticky in the "Blu-Ray lasers" section.
12x BR DIODES
Research was done on 12X diodes when they first hit the market.
400-500mW can be had safely. 600mW and up is pushing it, but they seem to be ok at higher outputs. Some will die, some will live. For how long has not yet been determined.

Hopefully 24x 405 diodes come out sometime soon. That would be pretty sweet. If those came out we might be able to get 1W out of them. I'm hoping to acquire a 550-600mW 405nm sometime this summer.

okay there are many things WRONG in this thread. take some time, research this kind of thing.

jetlasers sells an 800mW 405nm laser.

NEVER EVER EVER EVER POT MOD A LASER. That's just plain ridiculous. IF you want to kill your laser, and have a expensive @$$ paperweight, go for it.

dont pot mod your lasers. theres no point or need.

I've had 2 12x's LED on me so far, so now you know, they die. :P I wouldn't push a sf-bw512L 405 past 700mW or so using a 405-g-1.. probably 650mW using any other lens.. Doing it is just asking for trouble. The two I had die were due to back reflection.. and it didn't take much of a back reflection to do it either.. One died due to changing lenses. The other when I was fluorescing stuff at close range. Both that died were running about 750mW.

I would NOT trust a 800mW 405nm for much longevity(at least not until 14x or 16x diodes come on the market). Especially if it's using a sf-bw512L diode, either from the sled, or made for the sled.. which I bet it is since that's currently the cheapest source I know of for high power 405nm diodes.

let me restate my post,
an 800mW VERSION, i have no idea their claims of this, or specs, but it is an 800mW version. And me personally what I have heard of Jetlasers on this forums, I would trust them with my money, and I know they supply a power output graph upon request. Also I would ask them that, if they say their 800mW version will last 1,000-5,000 hrs lifetime expectancy, and died at 5 hrs.. there would be some splainin to do!

edit: also, hakzaw has some very good relations with jetlasers, maybe he can shed/share some light on their "800mW version. their specsheet on their page says 8,000 hrs. MTTF, so i dont know if the manufacture's rating is for their diodes at 8,000 hrs. but like I said, I don't own the place or nothing, was just sharing my unvast wealth of knowledge!

If they can get 1000-5000hours at 800mW output, then it's definitely not the same diode that's in the sf-bw512L sled then. I know where the limits of those are. :P

and que the evil scientist laugh

MWAHAHAHAHAHAAHA

Hey, YOU kill two of them that you bought with your own money, then get back to me on how funny you think it is. heh.

I remember there was a topic which is about 24x532nm diodes or something like that.It was about upcoming casio projector or something.Is it true?
Hmm when those 24x405nm diodes will come?
I can wait them to buy one.
I hope divergence wouldn't be high as 445nm s and line beam profile.I'm still waiting for expander to my Spartan and wondering how it will look like after installation of expander.

I don't know if it's true. I hope it is. Even if the divergence was the same as the casio diodes, they would burn better

That is just wishful thinking at this point in time. As the diode technology improves, more than likely DLP based tv's and projectors will move to high power white LED's. After all, with DLP, there really is no benefit to using lasers. Casio only did it because at the time it was cheaper to use 445's and a green phosphor wheel than it was for green and blue high power LED's. My opinion on the matter that while lasers won't vanish from display devices, them being used in mass quantities will. DLP will move to high power white LED's and lasers will be used for scanning beam type display devices.

But that's just my opinion.

Hey, IT was a joke. I thought you were joking,

I hope so because it would be very visible as 1W 532nm wow.As burning Spartan meets my all needs.I did burn a hole on a thick DVD cover(those have a pole on the middle of it) from 4 meters at about 40 seconds with it.I did search about 405nm and saw they are better burners even the best.That's why I want a 405nm.

405's will never be in display devices. near UV has no place in that market. I think the last thing TV and projector manufactures want to do is put out products that give most of their customers bad headaches after extended viewing heh.

The only current market for 405nm is blu-ray. And the strongest diodes available now are the 12x's, which are good for about 700mW reliably.

And it would take a LOT of 405, probably several hundred watts, to match the visibility of one watt of 532nm.

Yes you are right.I was talking about 1W 532nm would be very visible.Sorry for causing misunderstood.Talking about brightness technical information says 1W of 445nm equal to 100mw of 532nm.However my Spartan outmatches my friend's 200mw 532nm.Maybe my eyes sensitive to 445nm or my friend's laser is underpowered.I saw some pictures on forum about 1W 445nm vs 1W 532nm.Ofcourse 532nm was brighter but there wasn't huge difference like it should be according to technical information.Then I saw a thread abour 445nm which says human eye is more sensitive to 445nm than 532nm at dark.I just confused.Can someone enlighten me?

You can't go by pictures when judging beam brightness. There are too many variables. How the camera reacts to the light, was there fog? etc. All of this will change how the beams appear. Fog will greatly 'even the playing field' of different powers to most cameras. And your friend's 532 is most likely underspec. the last time I had a 445 running at 1W, the beam brightness was about the same as my measured and ir filtered 60mW 532.

Why not just buying this one?

FS: 405nm 12x >600mW+