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Lasers, I want to understand this "75w" pulsed laser, could someone Illuminate me? Answered

Ok, I found this laser diode that claims to be 75w, I want to know If I can use it at anywhere close to that and sustain that power output. its for a secret project, but if I can get it to work the way I want it to, ther is an I'ble for it on the way.
here is the datasheet link: http://docs-europe.electrocomponents.com/webdocs/08d5/0900766b808d55b2.pdf

Discussions

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The Ideanator

9 years ago

Possibly, but I used it anyway. Let me rephrase that though. Would they let a student sample one if the student seems valid enough?

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The Ideanator

9 years ago

I'm going to use what you said as an amendment to plasmania's samples I'ble (reworded of course). just a heads up.

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The Ideanator

9 years ago

Not really, even after a bit of googling. the cheapest 900nm range stuff was near $200, at that price, I think I might pass on the shades and just close my eyes, hoping I'm hitting the right spot. I think I'll throw in a request to the osram guys for a pair of shades and that laser once I word it right. also I found your laser card thing, I was thinking you could see the reflected light through it, but its for spot on stuff, good for centering the beams, but not much else.

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The Ideanator

9 years ago

Well I knew that I wouldn't be able to see the beam and it needed something else to be able to locate it, but I hadn't thought about the eye protection, thank you for that. And I guess it should be noted anyway for others who take a look here for their research.

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The Ideanator

9 years ago

I know that its an IR diode, I had worked in a tiny red 1mW or less laser in as a spotter beam via some cd/dvd player/burner optics.

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The Ideanator

9 years ago

Also I can't thank you enough for all the extra help you've given me

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The Ideanator

9 years ago

I do apply that methodology when I go to sample from those with dedicated website services, although I'm timid when it comes to speaking with actual people in ways other than email. Given the high price tag on that component and the volatile nature of my brain when it comes to any project (when I think of something else, the previous project gets moved to the back burner, sometimes indefinitely., this is this project's second go) I did not really think about emailing them for a sample, as the project might not ever get finished.

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The Ideanator

9 years ago

Dude, if you can sample it, pleeeease tell me how, mostly because sampling is how I get most of my parts (aside from stripping things of them) and I have little money to spend on most of my projects

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The Ideanator

9 years ago

Yea, the image is hard to read, my email is masonia14@aol.com (the spam blocker sucks, so i don't check it terribly often). I'm just wondering, but did you run this through a sim program, or form this all in your dome???

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The Ideanator

9 years ago

Ok, I'll give you a few hints(not necessarily telling you though, but you can guess if you want) -you're right about the communication and range finding bit (although I want to build a range finder, for other robots or binoculars) -its purpose is simple, pretty much everyone who posts in the science/tech sections has one (although they aren't using lasers) -Its going into a regularly used piece of lab equipment -good for things of a heat sensitive nature - larger scale versions can be used for welding -oh, also, the diode will be in a hand held assembly and the fluids and power will attach it to a main base with all the circuitry. No, I have no such lab equipment, none of my family are circuit nerds like me, I've had to buy or scrounge together what I do have to work with. I'm making a series of i'bles on homebrew lab equipment if you want to stay posted. I don't know if my friend has an o-scope, but if he does its probably something from the 70's. also I'm going into college, a bigger money drain then I expected, so I'm not be able to buy much in the way of lab equipment.

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The Ideanator

9 years ago

Yes I did, I'm just really busy today, buying college books, fixing the cars brakes(it was BAAAD, pretty much no fluid in the MC), sending resumes, there is a list of stuff, all immediate.

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The Ideanator

9 years ago

Nice cartoon reference, I haven't herd that one before. Anyway, no, the laser is going to be for melting/heating things, not etching. Ok, for the firing circuit, I'm thinking have the variable timer circuits do its thing and run the output to a bank of mosfets (transistors) that have a separate power circuit solely for the diode.

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The Ideanator

9 years ago

I don't mind, Ive looked all over and I haven't found a shred of similiarity between my idea and anything I can access on the web. So, if a 555 based circuit would seem to be of insufficient oscillation, might you have a faster suggestion? I'm going to either control the amplitude or pulse timing with either a digital audio pot or a typical one. (the accuracy of the timer isn't very critical, its not going to be measuring things)

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The IdeanatorThe Ideanator

Answer 9 years ago

Actually, I did just see Industrial examples of my Idea. I just haven't seen any homebrew implementations of it.

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The Ideanator

9 years ago

I was always going to have active cooling in the design, but I don't know how big the liquid cooled heatsink would have to be in order to keep from killing it. And the nanosecond pulse bit. I'm guessing a variable 555 circuit and some transistors wouldn't cut it for forcing it to keep the beam focal point at 200-400 degrees F?