The XBOX 360 HD-DVD high power laser thread

[VW]

Right, so it's confirmed that acrylic is ultimately better for 405nm than glass?

 

[john_lawson]

this is what ive got so far on my bluray waiting for another driver the 803-t doesn't run well on 38 ma going for the 80 ma range its a dx host 5 bucks you have to moddify switch housing a bit to fit 2 cr-123a non protected sorry about pic size

 

[IgorT]

Right, so it's confirmed that acrylic is ultimately better for 405nm than glass?

Clear acrylic is better than 650nm AR coated glass. 650nm AR coated acrylic is no good either. The coating almost halves the power, compared to clear lenses.
A clear glass lens might yield more, than a clear acrylic, but i don't know where to get them. Clear acrylic lenses are supposed to be in DX AixiZ modules, probably because DX asked for the cheapest module, which turns out to be good for us.

Once we have 405nm coated lenses, the power will be double, compared to 650 coated ones.


Because of all this, it would be stupid to use a red AR coated lens and push the current, when you can get more out, at a lower current with a clear lens.

 

[IgorT]

probably depends on the type of coating I know on a lot of computer screens and tv screens the instructions say to not use alcohol because it will destroy the AR coating. I'll try when I get my lens I have some acetone and alcohol.

Alcohol is a polar solvent. It really shouldn't do that. I use 96% alcohol to clean almost everything (except collimator lenses).

I'll try on a 650nm AR lens and let you know.

 

[thejunkmonger]

[quote author=thejunkmonger link=1209940381/270#271 date=1211128734]probably depends on the type of coating I know on a lot of computer screens and tv screens the instructions say to not use alcohol because it will destroy the AR coating. I'll try when I get my lens I have some acetone and alcohol.

Alcohol is a polar solvent. It really shouldn't do that. I use 96% alcohol to clean almost everything (except collimator lenses).

I'll try on a 650nm AR lens and let you know.[/quote]


Cool thx Igor i'll try with some acetone when I get mine.

 

[thejunkmonger]

this is what ive got so far on my bluray waiting for another driver the 803-t doesn't run well on 38 ma going for the 80 ma range its a dx host 5 bucks you have to moddify switch housing a bit to fit 2 cr-123a non protected sorry about pic size

Nice Laser Lawson when you get it up and running be sure to post some pics.

 

[Glaserfan]

Acetone(nail polish remover) did NOTHING against the coating on one of my glass lenses.. just cleaned it up to a nice shine...

Will try alcohol next, but I doubt it will have an effect. I have acrylic lenses, but I am pretty sure they are coated for red, although it's hard to tell if they are coated at all. I also have 2 Sure Electronics 5mW red modules with acrylic lenses that seem to have a reddish coating on them that I am positve isn't a good thing for BluRay.

For all three types on my ~80mW 803T setup, I cannot tell a difference visually or burning-wise. I wish I had a meter :-/

 

[VW]

[quote author=VW link=1209940381/270#273 date=1211132921]Right, so it's confirmed that acrylic is ultimately better for 405nm than glass?

Clear acrylic is better than 650nm AR coated glass. 650nm AR coated acrylic is no good either. The coating almost halves the power, compared to clear lenses.
A clear glass lens might yield more, than a clear acrylic, but i don't know where to get them. Clear acrylic lenses are supposed to be in DX AixiZ modules, probably because DX asked for the cheapest module, which turns out to be good for us.

Once we have 405nm coated lenses, the power will be double, compared to 650 coated ones.


Because of all this, it would be stupid to use a red AR coated lens and push the current, when you can get more out, at a lower current with a clear lens.[/quote]
I see, thanks. So, what if you also had an IR filter? Would you see much of a decrease in power?

 

[iewed]

@VW, I doubt an IR filter would do much, considering there's no IR.

 

[IgorT]

I see, thanks. So, what if you also had an IR filter? Would you see much of a decrease in power?

Why would you want to use an IR filter? Are you desperatelly trying to decrease your power?

IR filters are only required, when an IR diode is used for pumping the crystals (DPSS). After the crystals convert the wavelength of the light, there can be some remaining IR, so a filter removes it.


But you're not using an IR diode in a 405nm laser. Only a 405nm diode. So you want to get as much light out as possible.

Diodes only put out one wavelength. IR diodes also only put out one wavelength but it's IR. Only a DPSS laser needs an IR filter, because it uses an IR diode. And even there, the IR is usually so low, that you need to be way more worried, about getting the green beam into the eye, than the little ramaining highly divergent IR.

In DPSS lasers, IR filters also take some of the green light out (6%), so if you were to use one in a diode laser, you would only reduce the blu output, even more actually, because the filter you would buy would be coated for green. That's all you would do - reduce the output, nothing else.

You might as well set the current lower, and get a lower power but a longer life.

 

[Glaserfan]

Ok.. The Aixiz glass lens is OUT for BluRay.. I sacrificed one of mine(disassembling proved to kill it), and found 3 lenses inside. ALL THREE have coating on BOTH sides..the same blue-reflecting coating.. it is no wonder they cause such a drop in power. There is most likely no practical way to remove the coating from all three of these lenses without destroying the whole assembly.

I was online thru yahoo with jake21, and his tests resulted in a 8mw(62 to70) gain by just changing to the Aixiz acrylic lens.

I hated killing the lens to get it apart, but it was only a $3 sacrifice at least :-/

 

[happytomato]

I sent aixiz an e-mail, I'll tell you when/if they respond.

 

[IgorT]

I was online thru yahoo with jake21, and his tests resulted in a 8mw(62 to70) gain by just changing to the Aixiz acrylic lens.

He finally changed it? That's great!

Did he put in a clear acrylic or an AR coated acrylic? Do you know the current for this power reading perhaps?

 

[IgorT]

I sent aixiz an e-mail, I'll tell you when/if they respond.

About clear glass lenses?

AixiZ is usually slow to respond to emails. We might have 405nm coated lenses by then.

 

[Glaserfan]

Not sure what lens jake tried.. he didn't tell me how many mA he's running it at either, only the boost in mW. He is using a pot-modded dorcy driver in the laser.

I sent the same type question to Aixiz through eBay.. hoipefully they respond to that quicker....

 

[rubberband]

hey does anyone know what the pin out of these diodes is

Thanks,
Mitch