STAND AND DELIVER!!! 2 Watts of Red….Out of the Optics Bed!!!

[mccarrot]

Hi CDBeam,

in your drawings you have a thick beam going into the cylindrical optics, and a small beam out of the optics, but its the other way around, you maginify the beam so you beam will be thicker when it exits.

[CDBEAM]

Actually...yes Mcarrot....the beam when it exits the C-Lenses will expand the Fast axis. I wonder if we will not hit a problem with knife edging with the ML series ??? Too large a geometry after the Cylinderical Lenses...and that is with the current 4X of the Drlava lenses...not the proposed 6 ~ 8....which will expand the geometry even furthur !!! The Optnext...with their smaller emitter may be the only option for a multi-diode design ?????

BEAM

[andyf97]

Actually...yes Andy....the beam when it exits the C-Lenses will expand the Fast axis. I wonder if we will not hit a problem with knife edging with the ML series ??? Too large a geometry after the Cylinderical Lenses...and that is with the current 4X of the Drlava lenses...not the proposed 6 ~ 8....which will expand the geometry even furthur !!! The Optnext...with their smaller emitter may be the only option for a multi-diode design ?????

BEAM

For the ML
My exit beam after optics is 2mmx2mm, I plan to use them in a 4mm x 4mm square of 4 beams / knife edged together then wave plate and PBS another 4 into the mix so that based on running them over speck at 500mW each. 4W at 638nm.

Edit: Just realized I can rotate the second set of 4 so don't even need the wave plate. 4W is enough. Ahh but then if the 500mW version can be over powered to say 800mW that will yield 6,4W with the same setup

[Anthony]

For the ML
My exit beam after optics is 2mmx2mm, I plan to use them in a 4mm x 4mm square of 4 beams / knife edged together then wave plate and PBS another 4 into the mix so that based on running them over speck at 500mW each. 4W at 638nm.

Edit: Just realized I can rotate the second set of 4 so don't even need the wave plate. 4W is enough. Ahh but then if the 500mW version can be over powered to say 800mW that will yield 6,4W with the same setup

Please stop..... i am getting a stiffy :-) wuahahaha
I am targetting 2 watts. If you are confident you can get +4W.... than 2W must be more easy :-)

[andyf97]

Please stop..... i am getting a stiffy :-) wuahahaha
I am targetting 2 watts. If you are confident you can get +4W.... than 2W must be more easy :-)

I am just wondering how for the layout, it wont be so small and cost quite a bit but still a hell of a lot cheaper than to buy.

As for now each diode will have a DRLava correction.
Two of the diodes need to be stepped up 2mm higher than the other 2 to make this 88 kind of shape, needs the mounts to be 2mm higher, no problem. The DRlava correction can all be the same height as they are tall enough.

A sketch please CDBEAM.

I guess this can be done with two FMP3 aswell and a couple of tec coolers.

So for optics at 4W would need:

8xML5..G71 (No Part Number) About 69usd each from DSR
8xDiode Mounts (OPT-DH56) 27usd each Lasershowparts.com
8xLenses mounted in M9x0.5 info to come
8xFlexMount (OPT-FMM1) 22usd each Lasershowparts.com
8xMirrors info to come
8xSets of DRLava Correction info to come
1xPBS info to come
2xFMP3 info to come
And a base plate to mount it all on. info to come


For the 6,4W version, just change the diodes.

[CDBEAM]

Sorry Mcarrot....you pointed out my problem with geometry !! YIKES....there is ALOT on the table !!! And I want to see pics of it all !!! We currently are considering three different LD's ( HL6388MG, ML520G71, ML501P73)... three different different C-Lens optics ( 3X,6X,8X ) and two different Collimation lenses ( FL3 and 405 G 2 ) !!! That is 18 different combinations !!!! And I am not even throwing A-prisms into the pot !!! YIKES

Andy...so....AFTER your Drlava Cylinderical lenses....and your short FL collimation lens....you beam geometry is 2mm x 2mm ??? Am I correct in this understanding. THAT is " A horse of a Different Colour " meaning....that is very good.....and my initial thinking is that a " 88 " geometry may work !!! I will be testing close to that set up shortly when I get my LSP mount/lens..I will work on a drawing.

BEAM

[andyf97]

Sorry Mcarrot....you pointed out my problem with geometry !! YIKES....there is ALOT on the table !!! And I want to see pics of it all !!! We currently are considering three different LD's ( HL6388MG, ML520G71, ML501P73)... three different different C-Lens optics ( 3X,6X,8X ) and two different Collimation lenses ( FL3 and 405 G 2 ) !!! That is 18 different combinations !!!! And I am not even throwing A-prisms into the pot !!! YIKES

Andy...so....AFTER your Drlava Cylinderical lenses....and your short FL collimation lens....you beam geometry is 2mm x 2mm ??? Am I correct in this understanding. THAT is " A horse of a Different Colour " meaning....that is very good.....and my initial thinking is that a " 88 " geometry may work !!! I will be testing close to that set up shortly when I get my LSP mount/lens..I will work on a drawing.

BEAM

YES After the collimation then the drlava correction the beam is 2x2

[CDBEAM]

Yikes times Yikes.... Stand and Deliver indeed !!!This drawing was a PITA....Just imagine the BUILD..... I will go out on a limb here...Using eight HL6388MG's....with the smaller emitter size...This ONE will likely work....and give 2W... driven to spec.....NOW....with eight (8) ML501P73....That would be a solid 4W....driven to spec....IF the optics work !!!..

Concerning the drawing...LD3, LD4, LD7 and LD8 would ALL need to be 2mm higher in elevation....AND...their Knife edge mirrors would need to be elevated also....so that the beams of LD1, LD2, LD5 and LD6 would pass under the bottom edge of the knife mirror. To obtain the desired higher powers....it is demended we employ a more complicated design !!! NO way around that !!!

BEAM

[andyf97]

Great drawing.

What are you using to do these drawings, they are all usually quite good.

Yikes times Yikes.... Stand and Deliver indeed !!!This drawing was a PITA....Just imagine the BUILD..... I will go out on a limb here...Using eight HL6388MG's....with the smaller emitter size...This ONE will likely work....and give 2W... driven to spec.....NOW....with eight (8) ML501P73....That would be a solid 4W....driven to spec....IF the optics work !!!..

Concerning the drawing...LD3, LD4, LD7 and LD8 would ALL need to be 2mm higher in elevation....AND...their Knife edge mirrors would need to be elevated also....so that the beams of LD1, LD2, LD5 and LD6 would pass under the bottom edge of the knife mirror. To obtain the desired higher powers....it is demended we employ a more complicated design !!! NO way around that !!!

BEAM

[polishedball]

That is basically what I am doing with the 660's right now. C-lens options don;t seem to be needed when using the lpc-815's or the 150mw 640's.

And yes it was many hours to get the beams as tight as they are.