New High Power Blu-ray Sled! - SF-AW210 Graph!

jake21 said:

i just built another one and damn brighter than my 6x i had  

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BRIGHTNESS IS AN INERT FACTOR IN 405NM DIODES OF SIMILAR POWER.
My 190mW 6x is less bright than my 120mW PHR.

How about getting an LPM, Jake? :

Spyderz20x6 said:

How about getting an LPM, Jake? :

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. . . and keeping it ;D ;D ;D ;D ;D

Peace,
dave

i will keep it bc i finally got what i wanted

Spyderz20x6 said:

[quote author=jake21 link=1237590110/220#223 date=1238636476]i just built another one and damn brighter than my 6x i had  

Click to expand...

BRIGHTNESS IS AN INERT FACTOR IN 405NM DIODES OF SIMILAR POWER.
My 190mW 6x is less bright than my 120mW PHR.

How about getting an LPM, Jake? :[/quote]

Where in that did he say that it was more powerful? He just said it was brighter.

well the diode is dead... I was being stupid and using it to try to align a HeNe I have here... haha... I think I made contact with the HR mirror and it just went dark. No LED, just dark.

I tested for continuity, nothing. So I decanned it and took a look. Interestingly, this diode has the same size die and the same "z-shaped' electrode as the 6x diodes have. I cant find one of my old 6x diodes to compare it to, but I'll keep looking.

Anyway, the die itself looks just fine!!! It turns out that the little tiny golden wire inside the diode actually broke right in the middle. What a stupid way to die... Now that I think about it, I think I may have shorted it directly to the PSU I was using to drive it on accident... lots of wires everywhere, dont ask. Haha... Anyway, that would make a lot more sense now that I see the broken wire.

The diode lived for over 12 hours with some pretty hard testing. I even modulated it at about 10hz for an hour straight... no breaks

Bottom line, I think I made a stupid mistake and killed this diode. It would have lived If I didn't decide to play with it and just let it run :-/

Do you want to get hold of Ryan and get the three diodes he has from him. You could de-can three more to look at them to see if there are any internal differences.

Ryan took some macro shots of the exterior of the diodes, but the "bar codes" were too messed up to see much.

Peace,
dave

Hi, I've been starting my testing of the first SF-AW210 I got, preliminary figures are:

(mW readings are after Acryllic opened-back lens)

• Threshold around 35mA
• 4.08v at 50mA giving 18.3mW
• Highest I've got so far is 75mA, giving 4.46v, and 46mW.
  

The reason I posted so soon was that I noticed something unusual whilst testing the diode: As I got to 55mA, it seemed to settle at 4.17v to give 25.2mW, but for a few seconds it "hopped" to give 4.37v at 38mW, before returning back to its original 4.17v. Is this a glitch with my driver (temperature affecting potentiometers etc), or did the diode do this of its own accord? I know that some will "mode-hop", but I didn't know it happened at this low a current. This reading seems to fit with the reading I predict at 70-75mA, but my driver has been stable for every other reading so far...

I remember it was mentioned somewhere before this, but I can't seem to find it - are these voltage-current ratios consistent with Jay's "freak" diode, or the 8X, 6X, or none of the above?

charlie bruce said:

I remember it was mentioned somewhere before this, but I can't seem to find it - are these voltage-current ratios consistent with Jay's "freak" diode, or the 8X, 6X, or none of the above?

Click to expand...

I have my graph of the 'freak' diode that I had in the first post of this thread...

But I started my graph at 160mA's. So we won't be able to compare until you turn it up!
Jay

I still haven't hit 160mA - doing this evening.. IIRC I already hit 200mW "raw" power, though voltage started doing some weird stuff at this level - at higher current, I think forward voltage actually dropped...

I posted my results so far on jake's B/S/T thread for a 225mW BR.

If these diodes survive, expect me to buy a 405-G-1 or 2, I really can't be bothered to machine it myself (and besides, the lenses themselves cost nearly as much!)

Sure thing Charlie, I have them on hand...

My custom spacer fits the lens perfectly. There is a little rim around the edge of the lens that is made for mounting. This is where the spacer/retainer sits.

I would like to share why I chose this mounting method over other methods...

If you were to mount the lens into the AixiZ glass lens nut in the bottom of the nut (in the retaining ring area), without doing the machine work, the lens is not fit properly, although it would still work, it may be easily sitting off center or alignment. And there is a possibility of the improper sized metal lens nut causing damage to the glass lens.

Not that it will happen, but it could. I am talking from experience. Yes, I chipped a lens trying it this way. This, among other reasons, is why I chose the modification that I came up with.

Even though it requires:

* Enlarging the aperture with one drill size.
* Drilling out the nut to fit the 405-G-1 glass lens sitting on a tiny 'lip'.
* Making a custom spacer to retain the lens. (my custom spacer/retainer sits on the 'rim' of the lens that is made for mounting it)


Just a little 'tidbit' of information for you...

And... Not only is the barrel of the AixiZ glass lens nut too small in diameter for this mounting method, but the threaded area is too large in diameter for the O.D. of the lens. This is what I mean by fitting 'sloppy'. I guess if it was glued in place, and perfectly aligned, then it would work out. But not a good way to mount the lens. (IMHO)

On the other hand, my method also leaves room for the 'finger grip' focus ring to be installed 'all the way on', and still allow focus!
Jay


P.S. Just for a little information about Meredith, there are two different glass lenses available now. I have tried both of them. I sell the best one for red with my Meredith glass fit for AixiZ mod. Their new 405 coated lens is a broad band coating that is decent for both red and blu-ray. But not as good as the 405-G-1 glass lens for blu-ray, and not as good as their original 'optimized for red' lens that I am using for my Meredith/AixiZ mod for red.

So whats the latest on the testing of these diodes? Anybody have any updates to share?

Anyone?

I got pulled away for the Easter weekend, a holiday of sorts for me...

I will have results on Tuesday night/Wednesday evening (Yes, I know, I said that before, but I've been busy, you may well see what with in the next few weeks )

Hi, new to this forum, but have been playing with lasers for 20 years on and off as a hobby. I have 3 PHR's and one of these Aw210's. I drive them with a FlexDrive. I am a little disappointed in the AW210 in that I get almost eactly the same performance as with a PHR. Not sure if I want to try another one.

welcome to the forum....i have not had a SF-AW210 die on me yet and im on my 5th one

Any info as to how hard you've driven them, what voltage or what power you got, Jake? It'd be useful to get more info on these new diodes.

Me -> Sleep, but I'll read tomorrow and see if mine are comparable to yours...