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O-like with cheap 400mW greenies?

Grix

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I was the one who first brought up the power issues with the 12mm green modules.

Although the crystal sets are capable of handling more power (KTP has a much higher damage threshold) under the proper conditions (TEC stabilisation, proper heatsinking), these conditions are not present in the 12mm modules.

Damage to crystals in these modules is often caused by thermal stress as the tiny crystal set struggles to cope with the sudden expansion caused by the heat. There is not enough mass for the heat to be transferred from the crystals and into the surroundings.

There have also been several repeated cases of "sudden DPSS death" involving these high-powered 12mm modules. Upon closer examination all were caused by crystal set damage.

This is why in the larger 30mm modules sold by O-Like and used by JETLASERS have larger crystals, and independant YVO4 and KTP crystals. These modules also have independant optics to reduce the impact of thermal stress.

The larger modules are also pumped using C-Mount diodes which are screwed to the base of the module.

There's no way one of these larger modules will fit in that host. Someone pointed these new hosts out on LaserChat, but I didn't bring them up here because there'd be no way they would put out 400mW after IR filtering.

Although it is O-Like, and they do have a proven record for delivering on-spec lasers, I will remain skeptical until we get some reviews along with long-term updates to ensure there is not rapid degradation.

I'll be making an info thread about green modules soon, too.

@Morgan, the diodes that are used for pumping are special open-can 5.6mm diodes. These are often 300mW but there are 500mW versions available.

"Normal" 5.6mm canned diodes go up to 1W, however, these are usually off-spec by up to 10nm, which renders the diode useless for DPSS pumping.

CNI uses B-Mount diodes which are attached in a similar fashion to C-Mounts.
O-like states 6 months warranty, and they are not the kind of company to screw you over on that..
 

goninanbl00d

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Not saying they'd screw you over.

But wouldn't it be inconvenient to have your laser keep dying on you?

EDIT: 694 posts :D

 

DJNY

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Has anyone who bought the >350mW one for $197 a Laserpowermeter?
 

mhakali

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Just noticed that it updated to ">350mW" on the info page for the product in question.
 

DJNY

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Great :beer:

If it is real and I don´t order the 600-1000mW Spyder from Wickedlaser in the first week of Nov, I´m going to sell my RPL and go for the O-Like one :)
 

mhakali

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Great :beer:

If it is real and I don´t order the 600-1000mW Spyder from Wickedlaser in the first week of Nov, I´m going to sell my RPL and go for the O-Like one :)
You can buy my spyder arctic @ $230 barely used? ;)

Or some other spyder you were refering to?
 

DJNY

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You can buy my spyder arctic @ $230 barely used? ;)

Or some other spyder you were refering to?
Thank you but I meant their green Spyder S3 they told to release on the first week of November :)

I had an Arctic some time ago ;)
 

Petacat

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11:00 Am Eastern time the site is down again:whistle:
Can't wait to see what come back up this time:pop:
 

Xtrm2Rick

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jup still down for me to....wonder what info will be changed this time:whistle:

susie said: It is no IR fitler included ,but power is around 350mW

so perhaps lots of ir leakage?
 
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Hemlock_Mike

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The Olike website never recognizes me when I try to sign on. I do have a confirmed PP payment however as shown above.

I'll wait for Susie to contact me here. I've never had problems with her in the past and I don't expect any now. My order is documented.

HMike

Susie -- You can PM me if needed.
 
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bulltex95

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The website is now back up and I can log in but orders still don't show up but its all good. :spank:
 
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Curious

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Someone said that they wouldn't be good for burning because you have to focus with your hand in front of the beam so you'd have to turn it off before focusing always.. What if you just bend the tool thing so that it is off to the side and you can turn it around the edges.. if you know what I mean. http://www.o-like.com/userfiles/image/445 torch/focusing.jpg
Maybe not, looks like it would still be in the way of the beam a little. But I'm sure that there is a way around it.

Also, I see it says

Output Power (IR filtered)
>350mW

I'm assuming this means it's IR filtered?
 
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