Miloš Custom Blu-Ray 25mW Laser

Milos · Mar 17, 2008

Re: Milos Custom Blu-Ray 25mW Laser

I don't know what to say at this point, till ALL the facts are in, but that I'm glad it wasn't the other way around.
After all, we are not dealing with almighty "HAL" computer machine, and all these equipment - even test equipment, can have their faults.

In a way, I'm happy because I need Kenometer as well and I will be a proud owner of one soon.
On the other hand, I put so much effort into these lasers, chooseing only best of diodes and more than doublechecking two different ways for safe currents so that these little known diodes can have decent life, and now my power meter is in question. Its very dissapointing in a way. BTW, currents are garantied up to specs!

Well, as an enthusiast myself, I know I would be happy to have overspeced unit, but as now a builder, it feels more mad at my gear than enything.

When all the results come in, I will create new thread summing up this issue.

Cheers

IgorT · Mar 17, 2008

Re: Milos Custom Blu-Ray 25mW Laser

Miloš said:
Its very dissapointing in a way. BTW, currents are garantied up to specs!

Well, since i'm sure you set them for a safe current and not for max output, there should be nothing to worry about. If i was one of your customer, i would be happy about these news.

EDIT: I didn't notice this before.. So someone else's LaserCheck shows double the power compared to yours? Is this the same meter in both cases?
Either there must be some differences, or there is something wrong with yours. Is it still under warranty?

Milos · Mar 17, 2008

Yes, its the same meter. My meter seems to be very tough judge at 405nm.
As I said, we'll know for sure obce CC pays Justing at Laserglow a visit.

Kenom · Mar 18, 2008

ok it's killing me it's tuesday. Where are the results from laserglow???

Curiously_Coherent · Mar 18, 2008

Just got back!

The Kenometer has been vindicated! It was ±2mW with Laserglow's Gentec Solo PE (Silicon-based detector and über-sensitive), measuring the Miloš Blu-Ray at 26.5mW max.

Also confirmed my Vega-5 as 4.5mW (the Kenometer flipped between 4 and 5) showing that it is sensitive at lower power levels as well (once stabilized of course)

Miloš, you will be happy to know that Justin's Lasercheck also registered 17mW for your Blu-Ray, so it appears that they are not accurate at 405nm, at least at low power levels. The Kenometers however are awesome!

I'm so glad that you have one coming and I can't wait to see what that über-diode of yours is really putting out!

I'll post more about the 10x beam expanders ( friggin' awesome in person, BTW) which apparently fit the S-KY head perfectly as well.

But first, I gotta eat.

TTYSoon

CC

Kenom · Mar 18, 2008

VINDICATION!!!!!!

no neeners though. Not gonna be mean about it! LOL

member02 · Mar 18, 2008

Re: Milo[ch353] Custom Blu-Ray 25mW Laser

awsome, sounds like the kenometer owns all. hah, amazing price too.

Milos · Mar 19, 2008

Congratulations on Kenometer !
I contacted Coherent about this and they don't wanna comment on it, but they would be happy to charge me $140 for re-calibration. If it doesn't help they will have to sell me new one. Like I should expect any better afterwards. I will be sending mine to Senkat for little checkup once my Kenometer arrives !

Well,
seems like everyone is happy after this ! I know I am because I will be kenometer owner soon too

, and I'm not the only one with tough judge Lasercheck at 405nm.
Also, I think that Justin's and mine Laserchecks aren't the only one's arround here that read about 10mW less at 405nm. I say that because initially many people reported consistant power levels per amount of current.

Gee, I can't imagine how crappy true <5mW 405 looks like :-X

Weird science..

cheers

Curiously_Coherent · Mar 19, 2008

Yowsir!

I'm just glad it's all over and we had a happy ending. Big Kudos to Justin at Laserglow for letting us compare meters and settle this once and for all! [smiley=vrolijk_26.gif]

I'm even more glad that I scored one of the über-diodes that started this whole mystery in the first place...

I am one happy laser lover. With a Dilda-Lazor too... Uh-oh... ;D

Hope you sell a pile of them Miloš, they're worth every penny!

Cheers, CC

Kenom · Mar 19, 2008

I'm just glad we got it all sorted out as well. You can be sure it was nice to know that my meters have yet again tested out ok. to be vindicated against a meter that is capable of reading accurately below a mW is awesome. Now obviously my meters dont' have that kind of resolution or accuracy but still. Now you all get an idea of exactly how valuable these meters were. $150 was a pittance.

Lorgar · Mar 19, 2008

It was a fun time going down to LaserGlow. I was also suprised at the acuracy of the Kenometer.
I knew it was good but I didnt think it would be on par with a high end meter. Very nice Job on them Kenom. And Milos way to sell overspecked lasers

Milos · Mar 19, 2008

I also wanna thank you CC, Justin, and loarg for going there. This is extremely valuable information to me, and possibly to many 405nm owners with Lasercheck. It is great to have members around this comunity who will be as proactive and eager to learn and not leave any loose ends. We stayed open minded to all options, and - as we all said we would, we got to the bottom of the issue!

cheers

IgorT · Mar 19, 2008

Miloš..

I think you'll have to update your signature now..

Milos · Mar 20, 2008

I will, once I get laser meter from kenom. The best most affordable laser power meter out there.
I have this 405nm unit that is amazingly stable at 30mW peak to 24mW after 10min being ON (my meter, so you figure the reality) I have done tests of 2, 3, 4, 5 minutes repated periods with about 30sec- 1min off time and this unit is so solid and stayed above 26mW throughout. I'm talking 95mA here minimum. I have this unit kicking strong for many days now. Its pictured on a stand of my Batch#3 post in sales section.

Some diodes from PS3 seem to be very strange, and need more current to even start to lease. After that its all unknown.

scopeguy20 · Mar 27, 2008

I got the "<16 mW" unit today and, wow it so rocks! With the other violet laser I have the beam was a dim ghost and seemed more grey, but now with the one from Milos. I can see a beautiful violet beam and it appears to be at least twice as bright as the first one, (said to peak at 15 mW), that I got! I can't wait 'till I get my Kenom thermal meter to check the mW's, but I'd bet it has over 28 mW output power. Whatever it is outputing it sure makes me happy! Also I really send a big thanks! for the details and extra goodies! The crystal, great instruction sheets, extra colimators, and extra battery too! I owe you Pal! Thanks Again Milos! -Glenn

Curiously_Coherent · Mar 27, 2008

Hiya Scope,

Looks like you've got one like mine. Impressive isn't it?

I've been too afraid to run mine for longer than a minute for fear of frying it, since Miloš didn't know they were as powerful as they are. Have you tried any long run-times yet yourself? ( Don't fry your diode for my sake, please! ) I'm really curious to see whether these units are workhorses or thoroughbreds.

Cheers, CC

Miloš Custom Blu-Ray 25mW Laser

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