Is this a CO2 laser?

Laser_Ben said:

Amazingly good in fact, 1.5mRad with a beam waist of 2.3mm 25cm behind the aperture.

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Laser_Ben said:

The bare head with no power supply is $27,999.

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That's good for 8W. Granted it IS made by the same company that make what is considered to be *the* most stable high quality green laser in the world. The Coherent COMPASS. And it's at a competitive price too!

Krutz said:

ah, i would LOVE to buy that he-ne from ebay. but unfortunately i'm no parent yet.. *sigh*
manuel

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I'll sell you one in the same class as it for $30 less and I'm a grandparent

Peace,
dave

diachi said:

That's good for 8W. Granted it IS made by the same company that make what is considered to be *the* most stable high quality green laser in the world. The Coherent COMPASS. And it's at a competitive price too!

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The compass is crap compared to a Lightwave 142 or even a Verdi for that matter.

Laser_Ben said:

The compass is crap compared to a Lightwave 142 or even a Verdi for that matter.

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Ahh didn't know that .... well now I do !

OMG $28,000 for a laser !!!!!!!!
That's enough for a car or down payment on a house rofl

Is that green a DPSS ???

daguin said:

I'll sell you one in the same class as it for $30 less and I'm a grandparent

Peace,
dave

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the seller stated that only parents may buy this.. which i found amusing ;-)

manuel

Tabish said:

OMG $28,000 for a laser !!!!!!!!
That's enough for a car or down payment on a house rofl

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$28,000 is very cheap for a laser of this level. Once you start getting into systems from Coherent or Spectra Physics, the prices shoot through the roof.

To compare to what most people are used to as a quality laser, a Laserwave system, 3W 532nm with 10% RMS stablility costs ~$6000 depending on where you are getting it. Pretty fair price for the money, about $2 a milliwatt. However the beam specs are not the best, 3mm with a divergence of 3mRad. This laser has a M-Squared (Beam quality) of about 5 when it is actually measured, the measurements they give on the datasheet are wrong.

When you look at the Spectra Physics Millennia, for a Millennia IIi with a T20 power supply, the cost is upwards of $85,000. Granted, this has stability of 0.4% RMS. The beam from the unit is 2.3mm with a divergence of less than 0.5mRad. The M-Squared on this unit is guaranteed to be less than 1.1 with 1 being a perfect Gaussian beam.

Additionally, if you look at the failure rate of the lasers, the Spectra Physics unit is far superior. It uses diodes which are designed for long life, and low degradation, my personal Millennia has a power loss of less then 0.2mA/hour at full power. Many of the Chinese units can have rates of several mA/hour. Simply put, the Spectra Physics units don't fail, and if they do, you have a technician at your door within a day. to fix it.

Now, that being said, there is still an application for the chinese systems, it just doesn't belong in the industrial environment.

Tabish said:

Is that green a DPSS ???

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It is a type of DPSS, instead of using a Nd:YAG, Nd:YVO4, or Nd:YLF, it uses a optically pumped semiconductor as the gain medium. This medium is the same material as in a laser diode, however it is grown and processed in a way allowing it to run with an external cavity and broad emission. The laser uses a etalon within the cavity to tune the wavelength for optimal efficiency and to prevent secondary lines from becoming parricidal to the gain.

Wow....Those are some insane specs. And prices...

"The M-Squared on this unit is guaranteed to be less than 1.1 with 1 being a perfect Gaussian beam. " ?????????????

Do you mean the divergence ????

diachi said:

Too many !

HeCd, HeNe, HeHg, Ar, HeSe, Kr,Ar/Kr, CO2, CO, Gold vapor, water, Xe ion, Nitrogen, eximer ( 193 nm (ArF), 248 nm (KrF), 308 nm (XeCl), 353 nm (XeF) ), HeAg, NeCu, copper vapor, and gas dynamic lasers. there are more experimental systems I am sure.

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hmm I'd like to see the water laser :drool:

Tabish said:

Wow....Those are some insane specs. And prices...

"The M-Squared on this unit is guaranteed to be less than 1.1 with 1 being a perfect Gaussian beam. " ?????????????

Do you mean the divergence ????

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No, he means the M-squared.

Which is more-or-less a measurement of how perfect the beam shape/profile is.

M-Squared is a measure of the quality of a beam, it can be used to find divergence and beam waist information. In a perfect TEM00 Gaussian beam with no divergence, M-Squared is exactly one.

solid state is nice... but it will never be as sexy....

whoa! one damn sexy laser there, GooeyGus!
must be an argon, for the blue scatter and aperture? never saw an argon running "naked".. thought its all beryllium oxide ceramics, so no shiny glassware?

..i'm tempted to use this as a desktop background

manuel

Krutz said:

whoa! one damn sexy laser there, GooeyGus!
must be an argon, for the blue scatter and aperture? never saw an argon running "naked".. thought its all beryllium oxide ceramics, so no shiny glassware?

..i'm tempted to use this as a desktop background

manuel

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The black bit in the middle is a water jacket and magnet which has a nice BeO tube hiding in it. The glass bit at the end of it is the cathode area.

aah, i see! thanks for the info!

manuel