60 Watt IR Laser Diode Does Some Burning

[ableite]

what for eye protection?

[calum591]

so, is the laser diode the pump here, and the gain medium a type of glass? i.e diode-pumped solid-state? im having a load of trouble trying to find out if barcade scanners are diode-pumped solid-state lasers, or just laser diodes (as i understand laser diodes are not defined as solid-state lasers)

[billg519]

@calum591 This is just the output of the 808nm diode itself. I am not using a yag or other crystal. Some barcode scanners contain a very small hene laser tube, most seem to use a diode.

[Habberos]

I wonder if that can pop a baloon.

[jhawins]

And why is it so unfocused? I mean I know it's sick as is! But why not focus it to say .5-1 mm?

[jhawins]

Why is it blue looking if it's 808nm IR?

[mercanaries3]

@jhawins

the actual color is light pink...i think

maybe the radiation light is messing with the camera

[cwbh10]

I think that would hurt an eye if it would pointed at one........ Ouch

[ak74u2]

holly shit that seriously powerful it would probably go to the stars lol

[AdRiAniiiiiiiJeFfReY]

Woow

[MrPikey69]

will it pop a balloon????

[MrEriksen52]

"...My finger get some holes.."

[ghostdawg2]

is there a color laser that works beter for burning if i had a 1w green 1w blue and 1w red what wold burn beter or are they all the same?

[billg519]

@ghostdawg2 Probably one of the best burners available would be a laser based on a 12x bluray diode. The 405nm violet beam will even burn white materials. I would probably pick blue (445nm) over green or red.

[najsbajsmedmajs]

@billg519 but green is more visible, and purple is almost invisible to the eye ;)

[MrMultiwas]

@ghostdawg2 blue+red+green=white

[mraiford]

So, in your laser experiments, have you toasted any pixels on your camera's CCD, yet? Can you see the laser at all with your eyes?

[billg519]

@mraiford My cameras have done well so far. No fried pixels, yet. 808nm is seen as a dull deep red, but only try this indirectly with a well diverged low power source.

[the32bits]

Dear Santa..

[RJFlashCOM]

WOW! ...ME WANT ONE!!!!!! :D

[7poppasmurf7]

what's the after affect there at 2:36? as well, if you hooked this up to a 2 mirror spirograph, do you think you could make some cool designs in those surfaces, or would it just burn the mirrors?

[billg519]

@7poppasmurf7 It appears that the IR beam is showing as a gray spot after the bullet melts out of the way. The spirograph burning idea could work, plenty of mirrors will relect 808nm no problem. It would have to be done fully enclosed however, so there could be no possibility of an errant beam. I would also need lenses that would allow focus to occur further from the laser

[MortalBane]

Sure it can stop bullets, but will it blend?

[billg519]

@MortalBane It will burn a hole in the blender, but it won't blend. Wrong show ...

[Unon1100]

It is high powered, but it is NOT a laser. Notice the glass in any one of them. He makes it look straight, but it is rounded, and focuses the light to one spot.

[billg519]

@Unon1100 Cylinder lenses are used to focus light on only one axis. A little googling could show you how these, a FAC, and anamorphic prism pairs can be used to correct the asymmetrical output of a laser array, such as the array I am using.

[Unon1100]

@billg519 ok :)

[DragonFlyback256]

3:28 - Water pump got difficulties? (That odd buzz in the background dropping freq)

I like the woodburn part.

[billg519]

@DragonFlyback256 That buzzing is the rewound MOT in my power supply. It has a new secondary of heavy flat copper magnet wire from an elevator motor. This secondary vibrates randomly against the core, and is in need of a little epoxy.

[DragonFlyback256]

@billg519

I've read of that in an other comment from you. But i hear a separate one too. Are you using some water cooling for the laser diode?

[narcoti]

Get some microfiber cloth for your optics :)

[DeathDrone1000]

make a laser video of you cutting through a mirror, we don't get many laser videos in which somebody kills them self :)

[Wired2coffee]

And what if I were to say, put my finger in the way of the laser?

You wouldn't feel a thing, because you wouldn't have a finger.

[billg519]

@Wired2coffee If you run your finger through the beam where it is well expanded, not near the focal point, it only feels warm. At the focal point, the finger turns to fire.

[dunnorandom1]

What your burning through Korean people

[SunnyShawFilms]

where did you get that big lens ?

[billg519]

@SunnyShawFilms Online US store, Surplus Shed. I think surplusshed com is the address.

They have lots of surplus optics at decent prices.

[SunnyShawFilms]

@billg519 thanks

[Philios2Glory1]

Are you using a converging lens to concentrate the Diode array together?

[billg519]

@Philios2Glory1 FAC lens and cylinder lenses.

[link4u94]

!Crazy shitz!

[GINGERVISION24]

thats pretty cool where did you get that?

[billg519]

@GINGERVISION24

Diode came from ebay. They only show up occasionally.

[OK2BCK]

sooo.....

is it a wave or is it a particle, hmm?

:D

[thejurassicpark]

200W

OMFG

[Philios2Glory1]

60 watts?? you are going to burn a whole in the space time continuum

[togogot0]

is it possible to bunr a mirror with this laser

[zxcvbwolf]

:O naughty naughty

[TheNikk555]

too bad whe stiil cant strap this in the size a rifle or bazooka and uses AAA bateries

[danielparthenis]

@TheNikk555 lets wait another 10 years and maybe their will be a way

[lollator00]

Dear santa....

[FreemanLambda]

The future will be Small Arms (or potentially large) firing beams of 6000 watts.

[TheSupergabi9]

2:34 lolololol

[Salamence54]

time to die james bond

[bonjourq]

why the laser light does not cut through or burn the lenses u installed but it does burn whatever material u put in front of it ?

[billg519]

@bonjourq

The lenses are coated to pass 808nm light efficiently. The power simply goes right through them.

[reapa69]

LASERS, clearly the way of the future.

[wicmercfrik]

Very cool!

[JDRfilms103]

I0I

[randomvideowatcher]

Talk about smoking a lid....LOL

[BCPCX]

It's human eye visible? I know that human eye can't see a IR light of a LED, but its visible when its this powerful?

[dtiydr]

@BCPCX if i had a 60W laserdiod i sure as hell would try looking without safetygoggles no matter what, one stray beam and your blind for sure. But yes you could see IR depending on what wavelength but it would be very dim.

[BCPCX]

@dtiydr hm got it. I was imagining how people could burn another people without the people know from where is it coming haha

[billg519]

@BCPCX

Most people see 808nm as a very dull deep red. This is not the diode to choose for looking at the spot with no goggles. At this power level, laser goggles are on before the power switches are turned on.

[Scoutboe]

That's a bad-ass laser you got there! Got any safety measures?

[billg519]

@Scoutboe

Proper goggles for myself and any visitors. Ceramic and firebrick beam backstop.

[TAz69x]

How much would all of the equipment cost for a beginner, from naught to diode/everything else needed?

[billg519]

@TAz69x

Depends how you do on ebay for a diode. Could be $300 with no guarantee the diode is much good. Then to power it you need at least a variac, rewound MOT, 100A rectifier, and filter capacitor. Also a voltmeter and a 100A ammeter are needed. Diodes have a maximum current rating. They are blown by excess amps not volts. The diode must be cooled, may even need water cooling. Turn on cooling and slowly turn up the variac while watching the ammeter display.

[billg519]

@TAz69x

Part II

Bring current up past the diode's threshold, and you can try out different optics at a safer power level. When running diodes at or near full power, also check them for any heating. Most IR diodes want to be run at less than 30C at all times.

[billg519]

@billg519

Total cost for a basic setup can reach $600, depends on what in your parts bin already ...

[PhxSt0rmz]

Cool laser :)

[UnorthodoxMethod]

"No Mister Bond, I expect you to die!"

[Andrea8782]

what a pity! It isn't portable

[HancockAndLuffy]

Your electricity bills must be INSANE.

[Strideo1]

You cut metal with light. Awesome!

[YTubeMoralAction]

Why?

[11clemmi]

If the optical output is 60w how much are you pumping in?

i'm curious as to the efficiency of such diodes

[billg519]

@11clemmi

Diode draws about 60A, I think that the forward voltage was around 2.2V at the time.

[yubinsa]

GREAT VID! umm now put a finger there

[rathat48]

THAT NOISE! 

[Masimirrimies]

omg thats awesome :o

[murdoch2486]

feeling lucky, Mr. Bond!

[Munymuny200]

holy shit

[masermaker97]

this reminds me of the depiction of the heat ray in war of the worlds: "Whatever is combustible flashes into flame at its touch, lead runs like water, it softens iron, cracks and melts glass"

[px002]

What happens if you play with that stuff without safety glasses?

Instant pemanent blindness

[Zeglr]

Yeah the eyes are particularly vulnerable to the wavelength too

[hwei87]

@px002 u won get blind. it will go through ur eyes OMG...

[Pulli88]

What happens if you play with that stuff without safety glasses? Have anyone tried out this?

Hey the buzz sound reminds me to a mot.

Don't laser need stabilized current supplies?

Do little spikes kill those big diode bars too?

Do you think you can collimate the beam as perfect as normal laser pointers and beam it through an opened window of your house and light up some trees? (of course all passengers in the near should wear safety glasses)

[billg519]

Goggles mandatory, one mistake = white cane.

Power supply is rewound MOT driven by variac, full wave rectified and filtered. Meters for diode current and voltage.

Yes a spike from a non-discharged cap can kill a big diode.

These are multimode, will not collimate like a laser pointer.

[Sebazzz1991]

From what power are goggle mandatory? Is it possible to use a 2 watt laser without goggles for example?

[survivorevil]

you gotta be kidding.... from 100 mw you should use them

[AnselmoFanZero]

When you can effort such a laser, you should be able to buy some goggles as well.

[coilgunman]

approximately what is the cost of this laser diode

[billg519]

Was purchased from ebay. Usually $200-$350.

[survivorevil]

are kidding? just the diode i guess

[onefarmville]

@billg519 The diode may be that cheap, but the power supply and cooling system, not to mention the lenses that you used to focus the beam is more.

[bobhaha]

recon it would sting the skin? jks! nice setup very impressed!

[KoreanKid1996]

it wud probably cut ur hand off XD

[billg519]

60 watt CO2 is not too hard to run. The tube will need water cooling, some hoses and a small pump will do. You'll need a power supply of about 10kV, this can be built or bought.

60 watt diode will need cooling, could be TEC or water plate. Diode in video uses water cooling. Need to monitor current to diode so as not to exceed maximum, also power supply should be smooth, as ripple-free as possible. Could use variac hooked to rewound MOT, rectifier, and filter cap bank to test and do short runs

[twirlywirly555]

Very nice laser diode bars are fun what would be easyer to run a 60 watt co2 or 60 watt diode bar .

thanks

[samsomiller]

lol 2:36

the bullet just collapses

[008626]

Man, your MOT is noisy =P these diodes are quite fun (I have one as well - there's a video of it in my channel)

i'll have to power mine up again this weekend

[fastguy45]

The transformer is noisy because the changing magnetic induction of the alternating current causes ferric material in the coils to vibrate.

[008626]

What kind of wire are you using then? I use a solid copper to wind mine and it's virtually silent when running.

[billg519]

I am using flat magnet wire, 3/8" by 3/32", wound with an air space between turns. I simply need to put little wood or plastic shims in to stop the excessive movement.

[nerds521]

great results Bill. That laser looks amazing!:)

[likmahchoda]

Two questions:

- Do you use an IR filter for your camera lens?

- What is the background noise coming from? Almost sounds AC... thought that these diodes were DC?

[billg519]

There is no filter on the camera lens.

The power supply is making the noise.

A variac drives a rewound microwave oven

transformer, full wave bridge, and filter caps. The transformer makes an AC buzzing noise. The 12V coolant pump makes a shrill buzzing noise too. You hear it, and then the transformer noise kicks in as well.

[likmahchoda]

Thanks for your reply.

What is the voltage and current input for this diode? Also, what is the flow rating for your pump?

[billg519]

Diode is supposedly rated for up to 90A input, at 90A draw, voltage was around 2.62V. Don't know flow rating for pump, it is a windshild washer pump from a truck.

[laserma]

Hi Bi;;, just to check man, how did you get your powersupply, did you build it or did you buy it ? they are very expensive on the net, could you please tell me where to get a cheap one?

Thanks

[billg519]

A variac drives a rewound microwave oven

transformer, full wave bridge, and filter caps Yes, I built it, not too hard or expensive. Need a 100A+ bridge though.

MOT has 8 turns of flat magnet wire, 3/8" by 3/32" as a replacement secondary.

[laserma]

I see what you mean, but I dont think i'll be able to get the materials, how much will it cost me if I asked you to build me one with the water pump function so all I have to do is attach the wires and hoses from the laser to the supply? will you be able to build me one and ship it to Australia? i'll pay for shipping

[likmahchoda]

My my - that DOES look rather dangerous! :D Nice power there!

[Thetimewillgoonn]

To strong

[cyrillium1960]

excellent :-) !!!

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