daguin
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**SECOND EDIT** (9/16/09)
LOOKY -- LOOKY WHAT I FOUND . . . . . . . .
I have several S03 sleds here. This is it. Unfortunately, this is from an article published in JUNE of 2007!!!
Blue-Violet Lasers Evolve toward Next-Gen DVDs -- Nikkei Electronics Asia -- July 2007 - Tech-On!
Notice too that the write speed of the sled above is only 2X for SINGLE layer. Now the write speed in the 8X's are still only 2X for "BD-RE", but for "BD-R" it is 8X and these speeds are for double layer.
I know that this will come as quite a shock to us, but it would appear that our Chinese friends may have lied to us again
(and I really did get a freak)
Peace,
dave
**EDIT** (8/22/09) Through multiple PM's it is becoming apparent that no one else has achieved the results I did with my first test diode. WE NEED others to do a slope test with theirs. They do not seem to be able to take a direct "hit" with 300mA. This may be even less. I would hate to see everyone burn out a diode that was capable of less by trying to equal my results.
If you have one of these diodes (s03), you are de facto part of the experiment. Treat it as such. So far we only have ONE slope test. I believe that EVERY OTHER diode has failed at high currents!
If you have one working at high current, please let everybody know.
Peace,
dave
I got a new sled from Kendal from HighTechDealz.com to test the diodes. It was just to test the diode so I didn't do pictures for a complete review or tutorial. Hopefully, he can and will post pictures of the sled and the harvesting.
This is NOT the same sled, that was in my Pioneer BDR drive, that I posted about in the Tutorials board.
I tested the diode with it pressed into an aiXiz module and clamped into a heat sink. I used an aiXiz acrylic lens to better match the conditions under which I tested the Pioneer diode. I used a Rkcstr driver and a bench top variable power source (2A). I started out at 9V, but had to switch over to 12V at around 300mA (like with my Pioneer).
The red diode in the sled is our old friend the Long Closed Can diode. This is the same red diode that is in the GGW (6X) sleds. I did not test the IR diode.
Here is the raw data from my test of the violet diode. I did not "graph" the data in a computer friendly form. I did it the old fashioned way. I drew it out on graph paper. I am extremely busy this weekend. Maybe some kind soul (or Kendall) will graph it and post it. My hand drawn graph showed no kinks at 5mA resolution.
**EDIT** Lordy! I almost forgot the marking on the diode!! "Burned" into the side of the can of the diode is a alpha/numeric "brand." It looks like this:
6L VC
0096
Kendall’s mystery diode (maybe 8X?)
mA-mW == Voltage
55-25 ==3.9V (This was the "starting" current on the rckstr)
60-27
65-33
70-39
75-44
80-49
85-56
90-59
95-67
100-73 == 4.4V
105-78
110-84
115-88
120-93
125-100
130-106
175-111
140-115
145-123
150-127
155-132
160-142
165-145
170-149
175-155
180-162
185-166
190-173
195-176
200-182 == 5.2V
205-181
210-190
215-196
220-202
225-207
230-210
235-215
240-223
245-226
250-230
255-236
260-241
265-246
270-251
275-256
280-260
285-264
290-271
295-277
300-281 == 5.6V
305-284
310-290
315-294
320-297
325-304
330-307
335-311
340-316
345-323
350-325 == 5.7V (The output here with the 405-G-1 lens from JayRob was 425mW)
355-328
360-333
365-336
370-339
At this point I stopped the test. The slope of the graph was just beginning to flatten out. This was the same area (365mA) that my 8X began to flatten out. Also, my driver began to act up. I couldn't adjust the current reliably anymore. It was very hot! The test took me about 3 hours. If you pump 12V into a rkcstr for three hours, it's going to get hot! I stopped twice to plot the graph (at 200mA and 350mA) to make sure I didn’t miss a kink or knee.
The test was done with an aiXiz acrylic lens. The lens was already beginning to degrade. I did an output test at 350mA with the 405-G-1 lens that JayRob built for me. The output at 350mA with the good lens was 425mW!
The results from Kendall's initial testing of the diode were different than my results. We need some brave soul(s) to "pony up" and take the chance to test a couple more to make sure that I didn’t get a “freak” but it looks like an 8X to me.
We also need someone to test it with a higher power driver to see if the problems at the end of my test were an artifact of driver problems. Our current commercially available drivers were not built for these voltages at these currents. These newer diodes are raising the bar again.
It appears to have a lower "efficiency" than my Pioneer 8X. This is not a bad thing. It is just indicative that it may not be the same diode.
I would love to test a couple more, but I am leaving on vacation early Tuesday morning. Somebody else needs to take the plunge. I am afraid that all of these will be taken before I get back from vacation on the 27th.
I won’t have time to do a “longer term” test burn because I have a few other things I must get completed before I leave on vacation. However, it has over three hours (in three constant burns) on it just for this test. The temperature of the diode did not seem to be a factor. It was the driver that got hot. The diode/heat sink barely rose to room temperature.
Peace,
dave
LOOKY -- LOOKY WHAT I FOUND . . . . . . . .
I have several S03 sleds here. This is it. Unfortunately, this is from an article published in JUNE of 2007!!!
Blue-Violet Lasers Evolve toward Next-Gen DVDs -- Nikkei Electronics Asia -- July 2007 - Tech-On!
Notice too that the write speed of the sled above is only 2X for SINGLE layer. Now the write speed in the 8X's are still only 2X for "BD-RE", but for "BD-R" it is 8X and these speeds are for double layer.
I know that this will come as quite a shock to us, but it would appear that our Chinese friends may have lied to us again
(and I really did get a freak)
Peace,
dave
**EDIT** (8/22/09) Through multiple PM's it is becoming apparent that no one else has achieved the results I did with my first test diode. WE NEED others to do a slope test with theirs. They do not seem to be able to take a direct "hit" with 300mA. This may be even less. I would hate to see everyone burn out a diode that was capable of less by trying to equal my results.
If you have one of these diodes (s03), you are de facto part of the experiment. Treat it as such. So far we only have ONE slope test. I believe that EVERY OTHER diode has failed at high currents!
If you have one working at high current, please let everybody know.
Peace,
dave
I got a new sled from Kendal from HighTechDealz.com to test the diodes. It was just to test the diode so I didn't do pictures for a complete review or tutorial. Hopefully, he can and will post pictures of the sled and the harvesting.
This is NOT the same sled, that was in my Pioneer BDR drive, that I posted about in the Tutorials board.
I tested the diode with it pressed into an aiXiz module and clamped into a heat sink. I used an aiXiz acrylic lens to better match the conditions under which I tested the Pioneer diode. I used a Rkcstr driver and a bench top variable power source (2A). I started out at 9V, but had to switch over to 12V at around 300mA (like with my Pioneer).
The red diode in the sled is our old friend the Long Closed Can diode. This is the same red diode that is in the GGW (6X) sleds. I did not test the IR diode.
Here is the raw data from my test of the violet diode. I did not "graph" the data in a computer friendly form. I did it the old fashioned way. I drew it out on graph paper. I am extremely busy this weekend. Maybe some kind soul (or Kendall) will graph it and post it. My hand drawn graph showed no kinks at 5mA resolution.
**EDIT** Lordy! I almost forgot the marking on the diode!! "Burned" into the side of the can of the diode is a alpha/numeric "brand." It looks like this:
6L VC
0096
Kendall’s mystery diode (maybe 8X?)
mA-mW == Voltage
55-25 ==3.9V (This was the "starting" current on the rckstr)
60-27
65-33
70-39
75-44
80-49
85-56
90-59
95-67
100-73 == 4.4V
105-78
110-84
115-88
120-93
125-100
130-106
175-111
140-115
145-123
150-127
155-132
160-142
165-145
170-149
175-155
180-162
185-166
190-173
195-176
200-182 == 5.2V
205-181
210-190
215-196
220-202
225-207
230-210
235-215
240-223
245-226
250-230
255-236
260-241
265-246
270-251
275-256
280-260
285-264
290-271
295-277
300-281 == 5.6V
305-284
310-290
315-294
320-297
325-304
330-307
335-311
340-316
345-323
350-325 == 5.7V (The output here with the 405-G-1 lens from JayRob was 425mW)
355-328
360-333
365-336
370-339
At this point I stopped the test. The slope of the graph was just beginning to flatten out. This was the same area (365mA) that my 8X began to flatten out. Also, my driver began to act up. I couldn't adjust the current reliably anymore. It was very hot! The test took me about 3 hours. If you pump 12V into a rkcstr for three hours, it's going to get hot! I stopped twice to plot the graph (at 200mA and 350mA) to make sure I didn’t miss a kink or knee.
The test was done with an aiXiz acrylic lens. The lens was already beginning to degrade. I did an output test at 350mA with the 405-G-1 lens that JayRob built for me. The output at 350mA with the good lens was 425mW!
The results from Kendall's initial testing of the diode were different than my results. We need some brave soul(s) to "pony up" and take the chance to test a couple more to make sure that I didn’t get a “freak” but it looks like an 8X to me.
We also need someone to test it with a higher power driver to see if the problems at the end of my test were an artifact of driver problems. Our current commercially available drivers were not built for these voltages at these currents. These newer diodes are raising the bar again.
It appears to have a lower "efficiency" than my Pioneer 8X. This is not a bad thing. It is just indicative that it may not be the same diode.
I would love to test a couple more, but I am leaving on vacation early Tuesday morning. Somebody else needs to take the plunge. I am afraid that all of these will be taken before I get back from vacation on the 27th.
I won’t have time to do a “longer term” test burn because I have a few other things I must get completed before I leave on vacation. However, it has over three hours (in three constant burns) on it just for this test. The temperature of the diode did not seem to be a factor. It was the driver that got hot. The diode/heat sink barely rose to room temperature.
Peace,
dave
Last edited: