how to build a homemade laser ?

Question

i want to mkae a homemade laser but i dinno how to build it i need help

Answer 1

http://www.repairfaq.org/sam/lasercon.htm
http://www.powerlabs.org/laser.htm

You will quickly find this is no simple task, it will likley involve alot more time and money than you are willing to invest, but if you do decide to do it, more power to ya.

Answer 2

A helium-neon laser is relatively easy. You'll need help from someone at a place that makes neon signs for glass forming, vacuum, gas filling and a high voltage transformer. You'll also need two first surface, optically flat mirrors (fortunately, just a few mm in diameter), one of them having less silver than the other. Finally, you need an optically flat piece of glass through which the beam will exit the device. Look up the term Brewster angle or Brewster window. You ought to be able to find diagrams somewhere on the net.

It's actually a pretty simple contraption. A friend and I wanted to build a laser for a science project when I was in high school (1960's) and we were able to find much of what we needed even back then.

Whether or not you can get lasing hinges on how well you can get the mirrors aligned. They must be perfect.

If this is for a science project, you may want to consider simply making a model of a laser. That way, you can show all of the important elements, yet you don't actually have to make it work. If you want an actual laser, chances are that it will be cheaper to simply buy one.

Please, please, please - before you attempt to build a working laser or before you buy a commercial laser, learn about how to operate one safely. I could probably teach you what you need to know to build a laser in a few hours. Teaching you how responsibly handle one is another matter entirely.

You might take a look at
http://www.repairfaq.org/sam/lasersam.htm

Other info here:
http://www.geocities.com/CapeCanaveral/Lab/3931/laserhen.htm
http://technology.niagarac.on.ca/staff/mcsele/lasers/LasersHeNe.htm

Answer 3

In the 1970 Scientific American Column had plans to build a He-Ne laser, Ar, organic dye, and Nitrogen lasers(Xe would be even better). Including a simple power. It is available on-line or in the collected works of Strong. (I really miss this column)
Rubies for lasers are cheap. If you get creative using flash lamps from cameras and old electronic parts IT may not cost much.
There are solid state lasers in CD and DVD players. Don't exceed the voltage rating and use a resistor in series to limit the current (300 ohms?).
As consider what you want to use it for. Burning, cutting, information transfer.
Some companies sell evaluation kits for optical computing, communication, etc. This might be the best learning experience.
We had lasers inspected by the heath people because of regulations, but were less power than a pointer which is not regulated. Probably there is no problem.

Answer 4

First u need to under stand that even a small laser could hurt u. It can blind u ,u need to decide what laser u want to build but never work around it without eye protection on.

Answer 5

what kind of laser? do you want to burn holes and stuff? ask bill nye the science guy or maybe those guys from myth busters

Answer 6

your crazy you dont even have a liscence and yes you need one and most product are very expensive and off limits i hope you mean superficial laser like remote or pointers!

Answer 7

bring out the $$$$$$$$$

Answer 8

a homemade laser...? why?