XM360
0
- Joined
- May 21, 2016
- Messages
- 53
- Points
- 18
Hello,
I was hoping somebody with a bit more knowledge than myself could help me clear up some confusion / questions I have over 405nm laser diodes. Ever since I joined the laser hobby 3 years ago, I've always had this notion in my head that 405nm diodes were significantly more fragile and prone to death versus blue, red, and green diodes. I feel like I recalled reading this somewhere a while back, but I may be wrong. Some of this stems from the fact that out of the 3 lasers that I have ever had die on me, 2 were 405's. I've also noticed that the 405's often have a shorter rated duty cycle. So if there is any truth to this notion, would somebody be as kind as to explain to me why this is? And one final question, if you don't mind; are direct diode lasers capable of mode hopping, or is this behavior exclusive to DPSS and crystals? I ask because I have witnessed a visibilty/power fluctuation or two in my new Sanwu Guardian 1.6W 405nm, that resembles mode hopping. It only occurred when I pushed the laser too far past its duty cycle, and didn't result in any permanent change to my power output. Any help on these topics is greatly appreciated!
-Nick
I was hoping somebody with a bit more knowledge than myself could help me clear up some confusion / questions I have over 405nm laser diodes. Ever since I joined the laser hobby 3 years ago, I've always had this notion in my head that 405nm diodes were significantly more fragile and prone to death versus blue, red, and green diodes. I feel like I recalled reading this somewhere a while back, but I may be wrong. Some of this stems from the fact that out of the 3 lasers that I have ever had die on me, 2 were 405's. I've also noticed that the 405's often have a shorter rated duty cycle. So if there is any truth to this notion, would somebody be as kind as to explain to me why this is? And one final question, if you don't mind; are direct diode lasers capable of mode hopping, or is this behavior exclusive to DPSS and crystals? I ask because I have witnessed a visibilty/power fluctuation or two in my new Sanwu Guardian 1.6W 405nm, that resembles mode hopping. It only occurred when I pushed the laser too far past its duty cycle, and didn't result in any permanent change to my power output. Any help on these topics is greatly appreciated!
-Nick