Here is my little 624.....

[MechEng3]

Got your attention ! It is 642nm diodes from the GB !!!

Thank you DrLava for assembling the GB on the HL6385DG 150mw 642nm laser diodes. They are running at 335mah each and TEC cooled at 26.8 deg C +/- .03 deg. It is doing most always 214mw out the aperture. Thanks also to Marc of CT Lasers for letting me buy the laser from Laserwave that had a bad diode. Here are a couple pix for ya...nice round beam.....4.2mm diameter and at 25 meters it is a little over 9 mm diameter. No special optics.....just what you see. Nice project. Adam... I am beginning to work on our project as well. I hope they will turn out to be as nice.

[allthatwhichis]

Very NICE!!!

[sbk]

Nice!

Is it you who added the second diode, or is it an original design of Laserwave for two diodes? Anyway, really tight configuration

[MechEng3]

The laser head originally had a C mount 650nm diode on a copper block. It was DOA...well it made 40 or so mw. I just machined an aluminum block to accept the two 642 diodes and went from there....using the original TEC chip. I like to use ribon cable and just sealed off the hole where the old cable went through the housing. You could get 4 diodes installed into a housing of this size. Maybe they will burn in and start making a little more power...only 4 hours of use so far. About .050" was machined off the glass lens collimators to get "in range". I still think a better optics set is out there....somewhere. These are much better than the plastic units.....thanks Mo.....for the collimators.

[daedal]

WOW! You really outdid yourself on this one! That is one good looking laser!

Glad the optics came in handy

How about some beam shots? :P

--DDL

[300EVIL]

Very Nice! Yes, beam shots please. What are you using for TEC control?
Thanks!
Adam

[MechEng3]

OK fuzzy beamshots that do no justice to reality. This thing is bright! And it is doing just over 220mw today after running it for another period. I like it. Just need to make something to install it into...sure beats the pants off the 635nm stuff I have dealt with.

[300EVIL]

Wow! Nice orange/red.

[drlava]

Nice work! There are a few more of these diodes available from the GB at $125.
You should measure the forward voltage of those chilled diodes as the LasOrb begins shunting a lot of current around 3V+.

[sbk]

You should measure the forward voltage of those chilled diodes as the LasOrb begins shunting a lot of current around 3V+.

That's why it is better to use a blu-ray Lasorb for higher power red diodes