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After getting a few quotes from different people and places, I decided to get 4 diodes, pre-pressed into AixiZ blanks, from him. The diodes arrived very quickly (by USPS International standards), and were packaged well. The diodes were also pressed properly, and the modules were in good...

:eek: At that price I could get an EOM Q-switch along with a respectably sized cavity. I'd expected it to be high, but not that high.

Hey Glenn, Any word on pricing for a MPL-III-532 1uJ? These are the passively Q-Switched labbies. They certainly look interesting, and if the price is right, it might be worth dropping down the dough for one of 'em.

Judging by the efficiency of the CNI unit, I really wouldn't be surprised if it is directly doubled. Even then both the 480 and 491nm units have little-to-no efficiency (given that there must be substantial pump powers involved to warrant the use of the MGL-H host over the MGL-III host), and...

Yes, it can be done, but not in the way you're referring to. The Nd:YAG is a separate laser resonator, the pump wavelength does not affect the output wavelength. Nd:YAG has absorption bands at 780~ and 808nm, regardless of which is used to pump it the output will always be 1064nm, unless...

Here's a link to Sam's Laser FAQ, from which most of this information was taken: Sam's Laser FAQ - Solid State Lasers as well as the RP-Photonics encyclopedia (which is somewhat more up to date) RP Photonics Consulting - laser and amplifier design, nonlinear optics, fiber optics, fiber lasers...

I was tired, and I could have expressed it better. I've since changed it. Also, seeing as ElektroFreak liked the graphics so much, I decided to add them in for the section about Q-Switching as well. That should really help clear things up, it can be hard explaining without diagrams. :)

@mfo, As far as I know, nobody is making kits these days. I haven't heard anything about the White Fusion since I joined, and I have no idea what's happened to it. As for combining those three beams, it will work, even though the beam diameters are different. There will be visible 'halos'...

For good colour balance, you're going to need more red, be it 635, 658 or 640nm. If money is no problem, then buying a multi-658nm diode, and combining LOCs/LCCs is the way to go. You can get kits which can host up to 6 diodes, which are knife-edged and PBS'd into a beam that will actually look...

I was tired, and couldn't think of a better way to describe it. Thanks for the heads-up, it's since been fixed.

I've added some revisions, clarifications, and two new appendices. Hope this helps.

Actually, no, he doesn't. But people don't notice it because he's a respected member of the community. Go watch his PHR and LOC 'build a burning laser' videos. You'll see that there's no warnings in the videos themselves, and he's only recently added verbal warnings about goggles in his video...

I've compiled a short (if you could call it short) primer on the workings of DPSS lasers and DPSS laser systems here. This guide aims to answer the common questions and misconceptions about DPSS laser systems. A basic knowledge of lasers is essential, and the Wikipedia article on lasers (linked...

To select a lasing line from a multi-line capable gain medium, different cavity mirrors and optical coatings that reflect at the selected wavelength, and pass other wavelengths in that crystal are used. These ensure that only the selected wavelength can lase. With the IR leakage, that's a...

It is not practical to offer all DPSS IR wavelengths, and that is from far a complete list. For example, 1319nm (used to generate 659.5nm red), and and 946nm (used to generate 473nm blue) are not listed. CNI, however, does list lasers at both 914nm, 946nm, 1319nm and 1342nm. These lasers can...

Yes, that's how 457nm is created. It's DPSS, just like 532 and 473nm. In this case, the 914nm line of the Nd:YVO4 is doubled in a LBO or BBO crystal to produce 457nm blue output.

Well, I certainly didn't see that one *coming*.

532nm diodes? Really? 532nm diodes? I'd like some of these 532nm diodes, they might solve my modulation linearity iss-Oh, wait, they're modules, but KipKay's always right, isn't he? Even when he's wrong. Damnit, give us all a break. Stupid YouTubers are stupid. If KipKay is the best on...

Pot-modded? POT-MODDED? But...but...I'll run for an hour and then melt and someone's going to post on a website saying my website is crap! *explodes*

Yes, human perception isn't logarithmic. You need 4 times the power to perceive double the brightness. 50mW is fairly visible in a lit room (looking down the beam). Beam visibility is always greater when the beam is viewed parallel to the beam (not perpendicular) 50mW would be the upper limits...