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Old 02-21-2012, 05:15 AM   #1
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Default Is this DPSS?

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It seems to be able to run off of 3 to 3.7 volts, which is wayyy too low for a blu-ray diode...

That is, unless it has a boost driver on it. But, there's not an inductor to be seen on it.
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Old 02-21-2012, 05:18 AM   #2
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Default Re: Is this DPSS?

Nope, not DPSS. Just a boost driver. The inductor is probably just on the back, we don't get to see the back in any photos.
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Last edited by rhd; 02-21-2012 at 05:19 AM.
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Old 02-21-2012, 05:32 AM   #3
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Default Re: Is this DPSS?

Total rip off too. You can get ~20mW+ pen lasers for ~$7.

Newest 5mW 405nm Violet Purple Blue Ray Blue Laser Pointer Pen | eBay
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Old 02-21-2012, 06:01 AM   #4
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Default Re: Is this DPSS?

Are there any 405nm DPSS labbies bouncing around anywhere?
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Old 02-21-2012, 06:08 AM   #5
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Default Re: Is this DPSS?

I've never seen an exact 405nm DPSS labby.

I dont know that math well enough to know if it can be done.
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Old 02-21-2012, 06:13 AM   #6
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Default Re: Is this DPSS?

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Originally Posted by Tech_Junkie View Post
I've never seen an exact 405nm DPSS labby.

I dont know that math well enough to know if it can be done.
Oh ya - and not just can be, but I know they actually did it, prior to 405nm diodes. I think they were actually 404nm. From doubled 808 maybe?
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Old 02-21-2012, 06:20 AM   #7
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Default Re: Is this DPSS?

Once again I'm no pro, and my brain cells have been toast for decades. I probably absorb about 20% of what you guys talk about when it comes to specs/design/and function. Its not that I dont want to learn it, it just overwhelms the charcoal bricket thats in my skull.
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Old 02-21-2012, 06:22 AM   #8
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Default Re: Is this DPSS?

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Originally Posted by rhd View Post
Oh ya - and not just can be, but I know they actually did it, prior to 405nm diodes. I think they were actually 404nm. From doubled 808 maybe?
Thorlabs has 404 diodes for $1650 a pop. CNI doesn't seem to have anything on their big wavelength chart thing on the left of their site. So for 404 DPSS, I'm not sure, but diodes, yeah they're out there, and doubling 808 doesn't seem too far a stretch, I have no idea what crystals and coatings you'd need though.
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Old 02-21-2012, 06:36 AM   #9
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Default Re: Is this DPSS?

Quote:
Originally Posted by bloompyle View Post
Thorlabs has 404 diodes for $1650 a pop. CNI doesn't seem to have anything on their big wavelength chart thing on the left of their site. So for 404 DPSS, I'm not sure, but diodes, yeah they're out there, and doubling 808 doesn't seem too far a stretch, I have no idea what crystals and coatings you'd need though.
You've got to remember that our "405"s could be 404, 415, 399, etc. So the 404nm diodes are no biggy. I'm sure nobody bothers with 404nm DPSS at this stage. But it would be neat to know what surplus might be out there.
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Old 02-21-2012, 06:51 AM   #10
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Default Re: Is this DPSS?

Found this old thread about DPSS crystals to make 404nm.

Crystal converting 808 nm into 404 nm (IR to blue)

Cant find an assembled unit for sale.
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