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  1. M

    Homemade Nd: YAG Laser

    Thanks for the rep. I am willing to make an in depth tutorial on how to build this if enough are interested
  2. M

    Homemade Nd: YAG Laser

    This entire laser was a total of around $250
  3. M

    Homemade Nd: YAG Laser

    Here is a more elaborate and better video of my project! https://www.youtube.com/watch?v=1Irr6munwdU&feature=share
  4. M

    Homemade Nd: YAG Laser

    If you caught the HeNe laser in the youtube video, I can give an idiotic story about it. The tube is bare with the electrodes exposed, 1.4kV at 4mA. I was moving the unit around, while it was on, and accidentally made contact with both electrodes, one for each hand. Let's just say it sucked. A...
  5. M

    Homemade Nd: YAG Laser

    Oh yeah, if I have the mirrors aligned well, the burn mark is a perfect circle. Yeah, I can see this thing breaking somehow in the near future, but it is certainly cool!
  6. M

    Homemade Nd: YAG Laser

    Here are some pictures
  7. M

    Homemade Nd: YAG Laser

    Aligning the mirrors was definitely a pain. I used a small .8mW HeNe laser to align them. I don't have my mounts secured as well as I could, so they can get knocked off alignment pretty easily. The mounts are adjustable also.
  8. M

    Homemade Nd: YAG Laser

    If you saw my previous thread, you know I have been working on building an Nd: YAG laser. It's completed now just as I go off to college. I don't have any pictures on this laptop so just watch the youtube video I made: https://www.youtube.com/watch?v=1Irr6munwdU
  9. M

    Road to Homemade Nd: YAG

    The elliptical chamber is the most efficient way to pump the rod with a linear flash lamp; however, a close packed system will still be decently efficient, efficient enough. If I were to paint the soda with barium sulfate, the system would be much more efficient than the polished aluminum
  10. M

    Road to Homemade Nd: YAG

    A tiny flashlamp for a tiny rod. The rod is about 40mm and the flashlamp discharge length is similar in length (off by a few mm). I already have mirrors and mirror mounts. Hopefully the soda can reflector will work as a pumping chamber, and it should based off of the math (although I cannot...
  11. M

    Road to Homemade Nd: YAG

    Portability is definitely a plus. For now I'm using a 12V wall adapter to power the cooling fan, but I could easily use a 12V battery or use a boost converter with a lower voltage battery (as long as the current is sufficient).
  12. M

    Road to Homemade Nd: YAG

    This project will not be completed until I determine how I will make a pumping chamber. I am pushing the lamp I have slightly, but this is not worrisome. Theoretically, I would only need around 8mJ of energy to reach threshold (If the system were 100% efficient, this means I need at least 8mJ...
  13. M

    Focused LED instead of a traditional LD

    Laser diodes have resonator cavities, meaning the semiconductor p and n junction are sandwiched between two mirrors so to speak; although, the "mirrors" are often not conventional. As far as I know LEDs are simply light emitters. Laser diodes are true lasers since the light is amplified...
  14. M

    Nd: YAG Laser Help

    diachi, thank you for the reply, very helpful. I know styropyro made a video building a pistol YAG with a pre-built YAG head; this seemed to have an output I'd be satisfied with. I'm sure his YAG pistol output a lot more power than it seemed considering it's pulsed. I definitely need to do...
  15. M

    Nd: YAG Laser Help

    My last day of high school is next Tuesday so I won't be in college until the fall. I know it's dangerous. When doing this I will have safety at the top of priority list. I'm looking to use a fairly small rod and I'm not looking to get very high output power; I'd imagine this would be a...
  16. M

    Nd: YAG Laser Help

    I have little experience with this. I am interested in building a lamp pumped solid state laser to strengthen my experience and understanding of these methods and concepts. I will be majoring in physics with a concentration of electro-optics in the fall.
  17. M

    Nd: YAG Laser Help

    I'm looking to start a project building a YAG laser. I do not know a few things though: what percent transmission output mirror to use, distance of the mirrors from the rod, size of flash lamp needed, and any information about the circuit needed to create the pulse (not looking to have pulses...
  18. M

    Switches

    What switches are best for laser drivers? Would a two-prong switch or a three-prong/rocker switch be best? Any help is greatly appreciated.:thanks:
  19. M

    Sxd

    This is well-known I'm sure, but on the SXD, a wire is shown being soldered to the "enable" pin after removing a resistor. What should this wire be connected to? Any help will be greatly appreciated.







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