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- Feb 25, 2010
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Well, we finally have a new High Power Multimode Red @ 635nm...That being the VSHIO HL632383HD. See attached Data Sheet and pics of my initial optical attempts to tame the divergence on this diode.
Well...Success !! I can get the divergence down to equal that of the P73....( around 1.0 mRad ). The LD is rated for 1.2 W cont./1.5W pulse. I am sure we can push it to ....er.....maybe 1.8W
or maybe 2W...Yes...
Brightest and tightest single Red LD I have ever powered up. I did not run past 1.6A @ 2.7 VDC. A great output of beautiful Red Photons !!!
Of course....one must use Cylindrical lenses....and a 2mm EFL Collimation lens...so what !! 2W in a ultra small single LD...with a relatively tight beam !!:drool::drool::drool:
I am sure DTR will have these shortly. Right now...$ 100 per LD...but you know how the price drops !!!!
I will be refining the optical set up and pushing the current....not sure how high....likely I will max out at 1.8A
I will watch the output as the current is increased...like DTR does. And I will be looking for the knee....where a diminishing return on Power Output is noted.
See the pics. !!
Enjoy the ride !!
CDBEAM
Added...Oh...And...This....will be the Red LD engine in the Chartruse Corusication build....one can never have too much red....Hmmm 1.4W outa the NDG7475....and 1.6 W outa the HL632383HD....as my hero Austin Powers would say..." Yea Baby" !! 3W of Lime Green.... at our peak luminosity sensitivity line...outa be bright enough !!! Ya just cannot get more " Bang for your Buck " at this wavelength !!!
Well...Success !! I can get the divergence down to equal that of the P73....( around 1.0 mRad ). The LD is rated for 1.2 W cont./1.5W pulse. I am sure we can push it to ....er.....maybe 1.8W
or maybe 2W...Yes...
Brightest and tightest single Red LD I have ever powered up. I did not run past 1.6A @ 2.7 VDC. A great output of beautiful Red Photons !!!
Of course....one must use Cylindrical lenses....and a 2mm EFL Collimation lens...so what !! 2W in a ultra small single LD...with a relatively tight beam !!:drool::drool::drool:
I am sure DTR will have these shortly. Right now...$ 100 per LD...but you know how the price drops !!!!
I will be refining the optical set up and pushing the current....not sure how high....likely I will max out at 1.8A
I will watch the output as the current is increased...like DTR does. And I will be looking for the knee....where a diminishing return on Power Output is noted.
See the pics. !!
Enjoy the ride !!
CDBEAM
Added...Oh...And...This....will be the Red LD engine in the Chartruse Corusication build....one can never have too much red....Hmmm 1.4W outa the NDG7475....and 1.6 W outa the HL632383HD....as my hero Austin Powers would say..." Yea Baby" !! 3W of Lime Green.... at our peak luminosity sensitivity line...outa be bright enough !!! Ya just cannot get more " Bang for your Buck " at this wavelength !!!
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