445 diodes and PBS help

[planters]

On the Drlava's prisms, what is the clear aperture? Is magnification adjustable; and if so what is the range?

[neutrino]

I am about to give this a try. You have any photos of your setup?

Cheers
Rich

I didn't have an issue combining 445's with a broadband PBS from the group buy a while back... one | and one - got 2.4W out

the LW cubes don't pass 445 very well at all but reflect it ok

[flecom]

[CDBEAM]

Whatsa goez inta....vs. whatsa goez auta ??? OK....the goez auta is 2.4 W....What is the power going into the cube...for each 445 LD seperately....That... of course will give us a handle on PBS efficiency....and that can be compared to the JML PBS optic.

The Curious CDBEAM

[catalanjo]

Yeah neat little set up ... while you at it, maybe U can tell us what the drive current is @ those powers

also if the PBS doesn't have an AR coating ...aren't you worried about back reflection ?

Not a lot of cooling visible in those pics ... does the setup get hot ?.... or maybe you have a hidden TEC ...

@planters = DrLava uses cylindrical lenses not prisms @ a fixed ideal adjustment for best beam collimation.

Cheers

[planters]

Catalanjo,
You're right of course. What I should have asked was what is the clear aperture for the anamorphic prisms that are being compared to the Drlava cylinders? Cylinder optics are easy to source if not so easy to set up. Sourcing prisms is more difficult.

[laserkits]

Never ran into this issue with mine. I used Stanwax cubes coated for 445. All works fine at 90 degree angles...

[flecom]

Yeah neat little set up ... while you at it, maybe U can tell us what the drive current is @ those powers

also if the PBS doesn't have an AR coating ...aren't you worried about back reflection ?

Not a lot of cooling visible in those pics ... does the setup get hot ?.... or maybe you have a hidden TEC ...

@planters = DrLava uses cylindrical lenses not prisms @ a fixed ideal adjustment for best beam collimation.

Cheers

no idea, and yes it gets very hot, but I might shove a tec between the module and the baseplate when I decide what to do with it

[polishedball]

what type tape are you mounting the PBS with?

no idea, and yes it gets very hot, but I might shove a tec between the module and the baseplate when I decide what to do with it

[CDBEAM]

Laserkits....thats the deal...your set up is very compact....great...I tend to over-engineer things...Ya !!! See the discussion in the 445 section !!! What is your beam geometry at 40 feet ???????????????? ( What does the spot on the wall look like ???? )

CDBEAM