HIMNL9
0
- Joined
- May 26, 2009
- Messages
- 5,318
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Hi
Let me premise, i searched for a week in google and producers sites, and found nothing, and also in the forum there's nothing i can find with search function, so i'm asking here.
Anyone already got one of the Samsung super-writemaster 18x dvd burner diodes, and got somewhere tech spec ?
The diode is not a metal can, is a "strange" (apparently non-standard 4 pins flatpack open LD) case, glued with thermoconductive resin up and down the diode, inside a small aluminium holder ..... 2 pins are the LD ones, one probably the return photodiode, one unused, but there's no way at all for get any part numbers due to the resin.
I tried it, and apparently have a threshold (start to lase) at 47mA ..... powered with 75ma, it go half hour without significantly increase the temp ..... driving it with 98mA, focused, it start to smoke black plastic a bit and become more hot (60 seconds turn it 10/11 degrees more than the start point)
I have this one from a while, and decided to mount it on an old aixiz module for focusing tests, and for better handling it, so modified the aixiz head with a scissor (don't look me bad, it's just soft brass), til the aluminium block fit in the better position and completely in contact, then solded a pair of copper wires on the head, put the module in place, bended the wires on corners for keep it fixed, then glued it with self-made thermoconductive resin.
You can see what i mean in the pics, hope it's clear
But now i want to know if there's any way for get the right data for this damn LD, working current, max safe power, and so on ..... anyone have these data and can share, or any link to a datasheet ?
Thanks in advance for any help
Let me premise, i searched for a week in google and producers sites, and found nothing, and also in the forum there's nothing i can find with search function, so i'm asking here.
Anyone already got one of the Samsung super-writemaster 18x dvd burner diodes, and got somewhere tech spec ?
The diode is not a metal can, is a "strange" (apparently non-standard 4 pins flatpack open LD) case, glued with thermoconductive resin up and down the diode, inside a small aluminium holder ..... 2 pins are the LD ones, one probably the return photodiode, one unused, but there's no way at all for get any part numbers due to the resin.
I tried it, and apparently have a threshold (start to lase) at 47mA ..... powered with 75ma, it go half hour without significantly increase the temp ..... driving it with 98mA, focused, it start to smoke black plastic a bit and become more hot (60 seconds turn it 10/11 degrees more than the start point)
I have this one from a while, and decided to mount it on an old aixiz module for focusing tests, and for better handling it, so modified the aixiz head with a scissor (don't look me bad, it's just soft brass), til the aluminium block fit in the better position and completely in contact, then solded a pair of copper wires on the head, put the module in place, bended the wires on corners for keep it fixed, then glued it with self-made thermoconductive resin.
You can see what i mean in the pics, hope it's clear
But now i want to know if there's any way for get the right data for this damn LD, working current, max safe power, and so on ..... anyone have these data and can share, or any link to a datasheet ?
Thanks in advance for any help