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Hi there, I keep saying that I look at the beam output via a camcorder in night mode, NOT my eyes, I need my eyes...lol. Forget about ALL the other crystals mentioned, it's obvious they are rough and a lost cause, lets focuse on that finished and coated ND:YAG rod shaped crystal I have...

Thanks for taking the time to answer in such detail, the concepts your drawn here are basically what were in my head, except for the fact that I "assumed" that without the coatings, the conversion (doubling) just would not take place. If you look in this thread, I was told my KTP & ND:YV04...

Hi HIMNL9 and thanks for your suggestion! I did in fact already try doing that with a pre-glued green laser pointer crystal, and NO output at all, I posted previously asking for help about that as well, and finally gave up as I just couldn't get any green output at all. I "assumed" I either did...

Huh? What did I help out with?? ;)

Thanks HIMNL9 for the info, i really appreciate it! I'm sure there must be SOMETHING that I can use these for, and if not, then if there is anyone out there who CAN make use of them, and wants them for a fair price, let me know ;) What about the KPT crystal shown here? Can't that at least be...

well, any suggestions anyone? I could REALLY use some advice about this! Thanks ;)

Here are a few pics of the crystals that are closer and more detailed.

Oh, BTW, there is a chunk taken off the one corner of the KTP crystal, it came that way, so I "assumed" it was for a reason, roughly 1/5 of the surface on the end remains untouched. Is it a problem? I'll be posting some closer up pics of the crystals if it will help you to understand what...

Hi, Apparently the crystals are not coated, as they appear the same colour on all sides. The ND:YV04 crystal almost looks like it is coated with a somewhat metallic kinda "textured" coating, kinda bumpy looking really, the KPT doesn't look like it is coated in anything, just rather rough, no...

Hi all, I happened yo "aquire" a couple crystals which I'm hoping to pump into a nice green output, but due to my admitted inexperience, i'm not sure if I have the right crystals, or "exactly" what to do with them to align them into producing a visible green beam output from the 808nm 1/2 - 1...

Hi there, actually, the batch I have IS from Hesc_photonics, I'm assuming he is some kind of a big player in the laser business and well known for you to just pick the name out of the air, does he post here as well? Do many people purchase from him? What's his story, is he reliable and a good...

Kewl, who would have guessed! Sorry for suspecting the sarcasm, nothing offensive intended, I just need to know someone's being serious before I take their advice ;) Thanks!!

Are you being serious, or sarcastic?

Hi all, Upon testing a bunch of 9mm high powered infrared laser diodes (at least over 1/2 watt, maybe more), I noticed that tha higher powered ones in the lot that I purchased from soneone seem to have a "burned" window or output lense or whatever you call it on the case. When testing these...

Thanks for all that VERY useful info! I know I've got alot to learn (or should I say "re-learn"), but it's kinda hard for me to absorb info after a head injury I suffered some time ago, it really sucks! I "used" to be a very serious researcher before that happened, and actually, back in the...

Thanks for the info cappernicus. I really DO have a mixed bag of diodes here, the C-mount ones I know are all IR and 1/2 watt, but the ones in the can are somewhat of a mystery to me, one of them even has a tint little "buldge" type window, less than 2mm in diameter, it looks like a little...

Hi, thanks for your reply, I've tried looking up all of these in google, and there are SO many results, but none seem to actually "be" the results I'm looking for. I'm not sure if there is a dash, or a space, or something in these numbers, but I've tried everything, and none yeild any real...

Hello, PLEASE forgive me if this information is avaliable SOMEWHERE in this message board, I HAVE tried searching, including in this particular thread, but have not been able to provide the specific information I'm looking for, and given recent events in poting here, I DON'T want to piss anyone...

ElectroFreak, Lets agree to disagree, I accept your apology, and am also sorry I beaked off at you last night. As you understand frustration, surely you must understand mine as well, communication when you have suffered a head injury is sometimes VERY frustrating, as you just don't understand...

See, that's my point exactly, you think that because you can admit that your "not always the nicest guy in the world", that somehow that gives you license to treat people like crap and talk to them the way you seemingly do, all because "your ok with yourself" being the way you are. Well, that...