Is this DPSS?

Le Quack · 02-21-2012, 05:15 AM

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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.

rhd · 02-21-2012, 05:18 AM

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.

Tech_Junkie · 02-21-2012, 05:32 AM

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

Newest 5mW 405nm Violet Purple Blue Ray Blue Laser Pointer Pen | eBay

rhd · 02-21-2012, 06:01 AM

Are there any 405nm DPSS labbies bouncing around anywhere?

Tech_Junkie · 02-21-2012, 06:08 AM

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

I dont know that math well enough to know if it can be done.

rhd · 02-21-2012, 06:13 AM

Quote:

Originally Posted by Tech_Junkie

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?

Tech_Junkie · 02-21-2012, 06:20 AM

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.

bloompyle · 02-21-2012, 06:22 AM

Quote:

Originally Posted by rhd

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.

rhd · 02-21-2012, 06:36 AM

Quote:

Originally Posted by bloompyle

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.

Tech_Junkie · 02-21-2012, 06:51 AM

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.

02-21-2012, 05:15 AM	#1
Le Quack Class 3R Laser Join Date: Dec 2011 Location: Buffalo, NY Posts: 1,171 Rep Power: 89	Is this DPSS? eBay - New & used electronics, cars, apparel, collectibles, sporting goods & more at low prices 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. __________________ Current lasers; 405 nm 502 mW build 532 nm 20-25 mW O-like Lookalike 635 nm 100 mW Single Mode C6 Build 650 nm 300 mW Metallic mini build Does this look resonant to you?...

02-21-2012, 05:18 AM	#2
rhd Class 4 Laser Join Date: Dec 2010 Location: Canada Posts: 6,695 Rep Power: 241	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. __________________ 405nm 950mW 12x DIY C3 Here 445nm 1,500mW Ancient 90 Year Old Here 473nm 70mW CNI GLP 488nm 20mW Coherent OPSL (en-route) 515nm 38mW DGH-N1 532nm 460mW "Dragon of Yore" Here 556nm 21mW PGL-III-C-556 Here X?Xnm 175mW PGL-RG Tri Colour Red+Green 589nm 70mW PGL-III-C with Clicky Mod 594nm 5mW Rigel-6 \| 594nm 5mW GLP 632nm 1mW "PortaHeNe" Here 635nm 500mW "Elder Beam" Here 658nm 315mW "Space Ray" DIY Build 685nm 35mW Diodes - Waiting for Build Time IR PORTABLES: 780nm 200mW "Pico Sniper Shot" Here \| 808nm 900mW DD "Power Certified" Handheld Last edited by rhd; 02-21-2012 at 05:19 AM.

02-21-2012, 05:32 AM	#3
Tech_Junkie Banned Join Date: Jan 2009 Location: In A State of Shock. Posts: 11,938 Rep Power: 0	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

02-21-2012, 06:01 AM	#4
rhd Class 4 Laser Join Date: Dec 2010 Location: Canada Posts: 6,695 Rep Power: 241	Re: Is this DPSS? Are there any 405nm DPSS labbies bouncing around anywhere? __________________ 405nm 950mW 12x DIY C3 Here 445nm 1,500mW Ancient 90 Year Old Here 473nm 70mW CNI GLP 488nm 20mW Coherent OPSL (en-route) 515nm 38mW DGH-N1 532nm 460mW "Dragon of Yore" Here 556nm 21mW PGL-III-C-556 Here X?Xnm 175mW PGL-RG Tri Colour Red+Green 589nm 70mW PGL-III-C with Clicky Mod 594nm 5mW Rigel-6 \| 594nm 5mW GLP 632nm 1mW "PortaHeNe" Here 635nm 500mW "Elder Beam" Here 658nm 315mW "Space Ray" DIY Build 685nm 35mW Diodes - Waiting for Build Time IR PORTABLES: 780nm 200mW "Pico Sniper Shot" Here \| 808nm 900mW DD "Power Certified" Handheld

02-21-2012, 06:08 AM	#5
Tech_Junkie Banned Join Date: Jan 2009 Location: In A State of Shock. Posts: 11,938 Rep Power: 0	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.

02-21-2012, 06:20 AM	#7
Tech_Junkie Banned Join Date: Jan 2009 Location: In A State of Shock. Posts: 11,938 Rep Power: 0	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.

02-21-2012, 06:51 AM	#10
Tech_Junkie Banned Join Date: Jan 2009 Location: In A State of Shock. Posts: 11,938 Rep Power: 0	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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