Is vega more stable than regular yellow laser?

c0ldshadow · Jul 8, 2008

hey everyone, i have heard about the stability issues with the rigel style yellow lasers. are the vega style yellow lasers that laserglow has more stable than the rigel series, or are they about equal?

thanks for any advice

peace
-ave

pseudonomen137 · Jul 8, 2008

I've only had one but it wasn't too good either. It actually was a bit more stable than the pen ones (which I've had quite a few of), but its such an inherently unstable process (ie, requires a lot of stabilization) so its pretty insane to try to stick them into a portable where you can't supply any type of thermal regulation. Pretty much any cruddy pen greenie will outperform it stability-wise.

Then again though, when do you need a portable 593.5nm to be stable? I can't see any real use for a portable one besides to complete a hobbyists collection, and in that case there isn't much need for stability IMO.

Razako · Jul 8, 2008

Mine is stable enough for general pointing or w/e you want to do with it. On a foggy night it does make a really unique star pointing laser. Other than that isn't that useful for anything other than filling a spot in my collection of laser colors. Imagine a huge/bulky 2-8mw green and you have something like the vega. The output tends to be whatever the laser feels like putting out at the moment. On a good day it will be putting out 5-8mw and on a bad day it struggles to maintain 4mw. it seems to depend on the room temperature.
If you want it for novelty purposes then go ahead and buy one. You can be the only one in the city with a yellow portable.
If you want a practical laser then you should probably avoid yellow portables.

rog8811 · Jul 8, 2008

*Nonchalant whistling :

Has portable yellow*

rog8811 · Jul 8, 2008

*Nonchalant whistling* :

Has portable yellow........

diachi · Jul 8, 2008

Ya big show off, just cause you made a portable yellow for <$60, bet it eats through batteries !

styropyro · Jul 8, 2008

Diachi said:
Ya big show off, just cause you made a portable yellow for <$60, bet it eats through batteries !

Actually his yellow should have better battery life than a 593.5nm yellow.

rog8811 · Jul 8, 2008

Diachi is right though, goodness knows why they chose the batteries they did, they last no time at all....I have gone through 5 sets already.....I do play with the laser a lot though :

Regards rog8811

brtaman · Jul 8, 2008

Hey rog,

I am thinking of doing your mod to the laser, I have a couple of questions though: The batteries which it uses are truly the worst choice for such a laser

, I used to own a camera that used them..(crap camera, even worse battery life).

How visible is the beam at night, pointing at the sky, with no smoke or fog in the air, even noticeable without looking from the back of the laser?

I know its a hard and enduring project, but I need one of those long-lasting full of cursing, almost throwing it in the trash then somehow making it work projects...hehe dunno why...plus a yellow laser for 30 bucks is the kind of deal that cant be passed up.

brtaman

jamilm9 · Jul 8, 2008

you should sell them for $100

rog8811 · Jul 9, 2008

How visible is the beam at night, pointing at the sky, with no smoke or fog in the air, even noticeable without looking from the back of the laser?

You have to remember that the red and green are both<5mw, the green is pulsed to attenuate it to match the red so a beam is just visible at night without smoke but it is no star pointer.

As a presentation pointer it is great and that is what I use it for......
Sorry cold, I seem to have hijacked your thread, it wasn't intentional :-[

Regards rog8811

Midknight · Jul 9, 2008

I'm going to hijack the hijacker here. I was wondering if the YVO4 and KTP crystal found in a basic green laser pointer would be separate pieces. Or would they be stuck together? What I'm wanting to do is, open up a green laser, and remove the KTP crystal. And replace it with one of my 593.5nm KTP crystals. I should have a yellow laser pointer...

Any objections?

iewed · Jul 9, 2008

I've heard it's a lot more complex then just shining an IR Pump through the crystals.

brtaman · Jul 9, 2008

I would like to help coldshadow, but I have absolutely no xp. with any yellow laser, however from what i've been reading it might be a good idea, to wait a bit, for their tech to develop, before sinking so much money into a laser that besides the cool factor doesn't live up to the price? Just my opinion, whatever its worth

Thats good news rog, I mean I wasn't expecting it to pierce the night sky, but I think I might have to build it, found the batteries on dx, like 3 bucks for a 5 pack, just gonna order like 10, i guess...hehe

brtaman

Is vega more stable than regular yellow laser?

c0ldshadow

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