celas
0
- Joined
- Feb 13, 2015
- Messages
- 76
- Points
- 8
UPDATE:
After receiving a lab power supply (3.5A max 15v) I've driven the ir diode at 5v 2.5A after some warming up after placing it in this empty laser stage lightning 250mW scaled DPSS host (with Nd:YVO crystal). The crystal has really good cooling (full contact with aluminum & brass), so I presume that if I add a peltier cell, it would be sufficiently cooled to work with 5W 808nm pump diode? Here is the photo of this host: View image: 10384276 784884001585707 7911136241808436495 n
But there is a problem - even with like ~4W pump power (I assume it has like 30-40% efficiency) there was still no green light. WHAT THE HELL IS GOING ON. Shortly after I launched diode with EVEN MORE current at free air (4.8v 3A) and burned a hole through my t-shirt in split second (by accident). And here comes the real disaster - the diode couldnt withstand multiple soldering/desoldering and its cathode wire broke and fell off (photo how it looks right now :View image: 10866217 784884131585694 1804990561625893834 o ). Is it fixable, or the diode is completely dead? I figured out that maybe the wavelenght of pump diode changed (it looks more richer red than on the beginning when it worked properly) from like 808 to 800 and it wont pump anything now - is this possible?Omg guys... Help me! I have to finish my RGB laser stage projector (2W blue module completed and working properly) and I have terrible problems with this bloody green module. I bought it extremely cheap and I can't get it to work... This is so damn frustrating.
After receiving a lab power supply (3.5A max 15v) I've driven the ir diode at 5v 2.5A after some warming up after placing it in this empty laser stage lightning 250mW scaled DPSS host (with Nd:YVO crystal). The crystal has really good cooling (full contact with aluminum & brass), so I presume that if I add a peltier cell, it would be sufficiently cooled to work with 5W 808nm pump diode? Here is the photo of this host: View image: 10384276 784884001585707 7911136241808436495 n
But there is a problem - even with like ~4W pump power (I assume it has like 30-40% efficiency) there was still no green light. WHAT THE HELL IS GOING ON. Shortly after I launched diode with EVEN MORE current at free air (4.8v 3A) and burned a hole through my t-shirt in split second (by accident). And here comes the real disaster - the diode couldnt withstand multiple soldering/desoldering and its cathode wire broke and fell off (photo how it looks right now :View image: 10866217 784884131585694 1804990561625893834 o ). Is it fixable, or the diode is completely dead? I figured out that maybe the wavelenght of pump diode changed (it looks more richer red than on the beginning when it worked properly) from like 808 to 800 and it wont pump anything now - is this possible?Omg guys... Help me! I have to finish my RGB laser stage projector (2W blue module completed and working properly) and I have terrible problems with this bloody green module. I bought it extremely cheap and I can't get it to work... This is so damn frustrating.