Sharp 490nm GH04850B2G 55mW Laser Diode

[Lifetime17]

Hi,
220mA is fine some are even fine at 275 tops and will last , Built this one at 260mA / 135mW .
Rich

 

[Richie89]

Hi,
220mA is fine some are even fine at 275 tops and will last , Built this one at 260mA / 135mW .
RichView attachment 68048View attachment 68049View attachment 68050View attachment 68051View attachment 68052

That’s really good to know. Every time I turn mine on I assume it’ll blow up. Hah! I can’t get over that host in the pic. Beautiful. How much would you charge just for that host? Host with leads?

 

[paul1598419]

I have built many pointers with the Sharp single mode diodes we've gotten from 473nm up to 510nm. Many more than I kept for myself. They all survive drive currents up to 300 mA quite well. My 477nm build and my 488nm build are my favorites and get a lot on run time from me. As long as you don't drive them over 300 mA I wouldn't worry about them.

 

[Richie89]

I re

I have built many pointers with the Sharp single mode diodes we've gotten from 473nm up to 510nm. Many more than I kept for myself. They all survive drive currents up to 300 mA quite well. My 477nm build and my 488nm build are my favorites and get a lot on run time from me. As long as you don't drive them over 300 mA I wouldn't worry about them.

I really cant tell you how reassuring that is. ill probably be using it more now that I know this. crazy to think you can get 473 out of a diode nowadays.

 

[paul1598419]

I wish I had held onto more of those 473nm to 480nm diodes Sharp put out that we got first. I only kept the one and then they were gone. I never repeated that mistake. I kept at least two of all the rest that came out.

 

[Richie89]

I wish I had held onto more of those 473nm to 480nm diodes Sharp put out that we got first. I only kept the one and then they were gone. I never repeated that mistake. I kept at least two of all the rest that came out.

crown jewels for sure! that's the only thing that always kept me from purchasing a DPSS 473nm was they have relatively low power and the darn warm up time I heard was several min? psh yeah I bet youre kicking yourself for that.

 

[Lifetime17]

crown jewels for sure! that's the only thing that always kept me from purchasing a DPSS 473nm was they have relatively low power and the darn warm up time I heard was several min? psh yeah I bet youre kicking yourself for that.

Hi
I think I might be a few left of those need to chech
Rich