NEW Portable DPSS Wavelength - 556nm 20mW CNI

AAlasers · Jul 19, 2011

Wolfman29 said:
Yeah - I never expect to get big companies to change their prices for a single customer... because if they are a big customer, they obviously have enough purchases that they can be firm on their prices without losing business.

EDIT: A random thought... I would like to see if anyone ever gets a true, 555nm laser. That would be incredible, just to say that you have the brightest possible laser.

Each individual person has slightly different peak visibility wavelengths. It also changes according to the ambient intensity and colour of light. I thought the peak wavelength at night time (for humans) was approximately 515nm? Either way..556 is close enough for me. I love to see all these new wavelengths entering the laser hobby.

AAlasers

Trevor · Jul 19, 2011

The wavelengths fluctuates with temperature? I thought this was doubled 1112nm... which is a wavelength from Nd:YAG if my memory serves. If it's an Nd transition, the wavelength wouldn't change with temperature.

-Trevor

Wolfman29 · Jul 19, 2011

Maybe the wavelength doesn't fluctuate with temperature. Hell if I know. I just took a guess as to why there is a +- 2nm wavelength difference.

Cyparagon · Jul 19, 2011

I've got a green laser head that says "501nm-561nm." That doesn't mean it's cyan when it gets cold.

Here's some relevant information.

steve001 · Jul 19, 2011

InfinitusEquitas said:
I see what you're saying about price vs mW though. The 532nm and 445nm lasers have left people spoiled in terms of raw power and visibility. (I include myself among these people) I remember paying $50 back in 2007 for a 5mW green... and my friends called me crazy.... The prices on higher powered greens were absolutely astronomical. So even now, outside of this forum I generally never say how much I paid for any lasers.

aryntha said:
Well, no more being coy, then. These lasers cost a kilobuck, just about dead on, plain and simple.

Now, keep in mind, 473 used cost this much, too, pretty recently. Yellows, too; and those have gone down some. I think we're getting CNI to realize that there's "something" to the hobbyist market, though, and maybe we'll see, down the road, some of these wavelengths available for less (though as Qume says, likely never 'under $100' or something)...

... And I know some of us are going to keep pushing CNI to make available new wavelengths alltogether.

I remember the price of the first 5mW red 670nm diode laser I saw. It cost $200 back in the pre-internet days of the late 80's. A 635nm laser the first time I bought one cost close to $70. My first 5mW green laser cost me $450 back in 2000. I heard they cost a great deal more at first. Now look how inexpensive these toys are. These exotic wavelengths will come down in price also, if folks buy them

Wolfman29 · Jul 19, 2011

Unfortunately, I don't think that the more exotic wavelengths will come down in price all that much like the 532nm's did, for multiple reasons.

1) It is much, *much* more difficult to get the exotic wavelengths out of YAG or YVO. I have seen people who just glued some crystals down and shot 808nm into the YAG and got out green in a relatively decent power. I don't think that would be possible without incredibly expensive tools.

2) Because green at 532nm will *always* be cheaper than any of the other exotic colors, why would the layman get any of the other exotic colors? To them, they are mostly going to be the same - what's the difference between 532nm and 556nm, really, to someone who is just going to use it to point around and stuff? 473nm's will probably drop in price a bit because they are blue, which is a significant difference. The yellows probably will too. But the ones that are closer to colors already in existence will probably never drop significantly due to the lack of demand.

qumefox · Jul 19, 2011

Actually the materials cost will roughly be the same in general. The added cost comes from 1) low quantities. The per part price will always be lower when your talking hundreds or thousands of units, vs say 10 or so. 2) Much lower efficiencies. Which translates to much more critical alignment to function.. which translates to more time and skill to build. 3) lower yields due the higher standards required of the components, coatings, etc.

Technically, building one of these is identical building a 473nm DPSS laser. The primary difference being the AR, HR, and OC coatings used. Being that you want the intracavity wavelength to be 1112nm instead of 946nm. However as I said, it's likely the surface finishes, and the coatings, have to be to much higher standards to actually get useful output.

Wolfman29 · Jul 19, 2011

Yeah. That's what I was saying - it's not the material cost that is the problem. It's the skill required and the demand that will keep the prices up here.

But you are also right about the coatings - nonetheless, I think the demand is certainly the key factor here, because I would bet that the coatings would decrease in price along with the actual laser, were the demand sufficient.

Don't Laze Me Bro · Jul 19, 2011

I wouldn't trust those any farther than a newborn can throw them. CNI does NOT make very good lasers when purchased directly through them or in a GB. IF you are "friends" with the CEO you can ask and they will tell you that different qualities of parts are used. PGLs are nice looking, but among the most SHIT lasers you can but from a "reputable" company. At least in the green WLs
I'm speaking from experience of me, and a friend who have both had many many PGLs die for no reason with <1hr on them.

I still plan on getting a PGL 589 some day, hopefully they can get their act together.

-D

aryntha · Jul 19, 2011

Trevor said:
The wavelengths fluctuates with temperature? I thought this was doubled 1112nm... which is a wavelength from Nd:YAG if my memory serves. If it's an Nd transition, the wavelength wouldn't change with temperature.

-Trevor

As far as I know, even 532 has some variation. (Some, wider than +/- 2nm.) Anyhow, this is what CNI told me, but maybe the variation is fixed. I do know the 556s do state "+/- 2nm" though. So while we're talking 808/1112, there has to be some variation in there somewhere.

Don't Laze Me Bro said:
I wouldn't trust those any farther than a newborn can throw them. CNI does NOT make very good lasers when purchased directly through them or in a GB.

Absolutely understand, DLMB. I've had a few PGL failures too. Unfortunately, in these wavelengths, CNI is absolutely and without a doubt the ONLY game in town.

Don't Laze Me Bro · Jul 19, 2011

aryntha said:
As far as I know, even 532 has some variation. (Some, wider than +/- 2nm.) Anyhow, this is what CNI told me, but maybe the variation is fixed. I do know the 556s do state "+/- 2nm" though. So while we're talking 808/1112, there has to be some variation in there somewhere.

Absolutely understand, DLMB. I've had a few PGL failures too. Unfortunately, in these wavelengths, CNI is absolutely and without a doubt the ONLY game in town.

Indeed they are, and some day I will own a 589nm PGL, I hope

-D

DJNY · Jul 28, 2011

Matt, may I ask you to take a comparison shoot of 532-556-561?

Maybe with smoke cartidge steam

aryntha · Jul 28, 2011

Yeah, i'll try to do that soon, maybe with the 4color sensor and see if I can get good distinguished photo differences between them.

DJNY · Jul 28, 2011

Great. Maybe your JDS1675P also want to be part of that picture

aryntha · Jul 28, 2011

Good idea, yeah, I can include some 543.5

joeyss · Jul 28, 2011

and maybe a 593.5 or 589? That would be one epic picture.

NEW Portable DPSS Wavelength - 556nm 20mW CNI

AAlasers

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Trevor

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Wolfman29

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Cyparagon

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steve001

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Wolfman29

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qumefox

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Wolfman29

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Don't Laze Me Bro

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aryntha

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Don't Laze Me Bro

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