Power of 16x blu ray diodes

[thebouljello]

I have seen different variations of 16x blu ray writers such as bdr 209, bdr 209dbk, and wh16ns40. Can all 16x blu ray diodes be driven to about 600ma to get about 900mw?

 

[Lifetime17]

Hi,
Yes they can 600mA basically is the safe zone for these BDR 209 diodes. I myself push mine around 650mA and 675mA. to achieve 1W . But beware with the higher mA's it's better to test them for efficiency first with a DC power meter to see where it starts to roll back in Mw's.This way you know what parameters to set the driver. If you don't this can be costly if you kill it.
So read up on the forums blu ray threads there's an abundant source of info by which you should have done first. This will give you a general idea of what you will be getting into.

Rich

 

[thebouljello]

I have been reading but I just got confused when I saw different variations of 16x diodes. thanks for the reply

 

[Alaskan]

405nm is an awesome burner which can be focused to a tiny spot a long way away, but only 1% as bright as a 532nm laser of the same power. I'd love to see someone knife edge a few, shall I be the answer?

 

[DTR]

I would not go by just the write speed on the drive. We pulled apart a 16X LG and the diode was not as powerful as a BDR-209. I would say it is likely any of the BDR-209 variants will probably have the same diode in them but for other brands it could be a crap shoot. There may even be one out there with a better diode than the BDR-209 that we have not found yet. The S06J diode was found(or ones that looked identical and had the same capabilities) in 10-14X drives so the write speed may be more limited by software, optics or hardware not solely dependent on the raw power from the diode.

 

[RedCowboy]

I have done this with 660nm single mode diodes a long time ago.
I arrange then on articulated mounts, just angle brackets with a heatsink that has a threaded hole, that way they have a x/y axis of adjustment and set them into a cone firing in.

Then pick up the beams near where they merge with a double concave lens then use a doublet or double convex lens.

By adjusting the position of the lenses with the diodes focusing lens already set to infinity, you can set a circle or beams size and if they expand or contract.

I am very tempted to do this with 405's.
I have also been wondering if these dirt cheap 660's that claim 400mw output are true, even a dozen of those could be fun, and leaves across the yard will burn.
It also looks really cool.

You don't even have to make them articulated, but it helps.
I did these back in 2008 and I made the lasers adjustable for runout by running the wires in through the side of the axis back half and I could adjust the aim on a 2nd plate with a bolt and nut through the back of each laser.

Then a simple lens would bring them to a point, different focal length, different range.

I looking for my big circle of articulated reds, they are old cellphone pics and on a old tower pc, I will try to find them.

Here's one of the big ring being focused into a bundle during early experimentation.
The articulated lasers are on the right, the lenses set them into a bundle, moving the lenses can shrink the bundle or bring all the beams to a point at a desired distance, the bigger you start, the further you can focus, just like a big single beam.

 

[thebouljello]

I would not go by just the write speed on the drive. We pulled apart a 16X LG and the diode was not as powerful as a BDR-209. I would say it is likely any of the BDR-209 variants will probably have the same diode in them but for other brands it could be a crap shoot. There may even be one out there with a better diode than the BDR-209 that we have not found yet. The S06J diode was found(or ones that looked identical and had the same capabilities) in 10-14X drives so the write speed may be more limited by software, optics or hardware not solely dependent on the raw power from the diode.

Thanks for that information DTR. After seeing posts of diodes with lower write speeds, It seemed like write speed correlated with power.

 

[thebouljello]

I have done this with 660nm single mode diodes a long time ago.
I arrange then on articulated mounts, just angle brackets with a heatsink that has a threaded hole, that way they have a x/y axis of adjustment and set them into a cone firing in.

Then pick up the beams near where they merge with a double concave lens then use a doublet or double convex lens.

By adjusting the position of the lenses with the diodes focusing lens already set to infinity, you can set a circle or beams size and if they expand or contract.

I am very tempted to do this with 405's.
I have also been wondering if these dirt cheap 660's that claim 400mw output are true, even a dozen of those could be fun, and leaves across the yard will burn.
It also looks really cool.

You don't even have to make them articulated, but it helps.
I did these back in 2008 and I made the lasers adjustable for runout by running the wires in through the side of the axis back half and I could adjust the aim on a 2nd plate with a bolt and nut through the back of each laser.

Then a simple lens would bring them to a point, different focal length, different range.

I looking for my big circle of articulated reds, they are old cellphone pics and on a old tower pc, I will try to find them.

Here's one of the big ring being focused into a bundle during early experimentation.
The articulated lasers are on the right, the lenses set them into a bundle, moving the lenses can shrink the bundle or bring all the beams to a point at a desired distance, the bigger you start, the further you can focus, just like a big single beam.

The focal point of the beams looks awesome. mixing 660s and 405s would look remarkable

 

[RedCowboy]

I have thought about that, but a dozen of the same diode in modules and mounts arranged in a circle 10 inches wide, all mounted around a 10 inch round barrel top with the center cut out.

The lasers will be focused to infinity and all fire backwards towards the user where they each strike a little mirrors that are set to form a cone of 12 beams, then a lens can be zoomed forward and back to change the focal point over distance, that way the length of the contraption is 1/3 making it manageable for the user and giving a good range within the working limits of the lasers spot for 1 watt x 12.

Or just a circle 3-5 inches wide with 12 lasers mounted around it all adjustable for up/down and left/right to set a cone fired into a beam expander, with a double concave in front if needed.

I have many ideas, just not as many disposable dollars.

 

[thebouljello]

I have many ideas, just not as many disposable dollars.

Same. I always wanted to make a rgb mixer laser by combining beams