HL6385DG 150mw 642nm laser diodes GB - new thread

[daedal]

Very nice! What is the "wattage" at that current?

It's a shame the datasheet doesn't show a P-I-V curve, but I'm getting 92mW out at that current... (That is with a glass lens and AixiZ housing)

--DDL

[MechEng3]

Strange that they have the pos. pin on #3 instead of the usual #1.....pin 2 Gnd. Hope to have success above 300mah drive current...TEC cooled. OK sorry...normal pinout and a long day. Maybe a good time to hold the couch down a while........

[Soulstorm]

Watching with great interest. Saw this GB too late but in the future this could be the red bump our rig needs to sit with the 1.5w 655 .. then just the 445 bump and I'm a happy chappy... for the time being hehe.

If someone could post some before/after shots of colours obtainable with a traditional 655/532/473 system with these diodes incorporated that'd be appreciated!

[MechEng3]

I have set one up in a test fixture and set the max current to 330mah. With the glass lens it yielded a steady 93.6mw@ 642nm with no major heating concerns{stable near 34 degC}. I wonder how much actual leakage current is consumed by the Lasorb. Any others performed tests? Pushed the current to actually get the 150mw? Any comments?

[tocket]

Received my diodes and drivers today. Thanks drlava!

It never did show up in the tracking service though. The first sign of the package was when it landed on my doormat.

Any tips on getting the diodes out of their plastic fortress without damaging them?

[shrad]

same here, I received the package and everything is well

I guess an antistatic wrist and deskplate, all grounded, will be enough to handle those?

[drlava]

I have set one up in a test fixture and set the max current to 330mah. With the glass lens it yielded a steady 93.6mw@ 642nm with no major heating concerns{stable near 34 degC}. I wonder how much actual leakage current is consumed by the Lasorb. Any others performed tests? Pushed the current to actually get the 150mw? Any comments?

Good question, I did a test of a LasOrb tonight to aid in setting the current, and came up with this chart:


So, depending on your Vf, the LasOrb could be drawing enough current to notice. If your diode Vf is a little over 3V, then the current will be very hard to set precisely with the LasOrb installed. Fortunately according to the datasheet the Vf should fall between 2.6 and 3.0V (at 25 C) below 25C, it may increase.

[Laserman532]

for the electronically inept individuals in the crowd

WFT????

[dave]

same here, I received the package and everything is well

I guess an antistatic wrist and deskplate, all grounded, will be enough to handle those?

That is all I have used to handle diodes, including Nichia 500mw and 1w's, and I have never had any problems.... Touch wood

[-bart-]

@ andrew

Have you checked if the lasorb has some kind of hysteresis ?
If so, that would make make it even harder, if not impossible to drive properly at high Vf.