Combine many green laser beams

[marcelf]

Hi Guys,

I had been note sometimes the price for green laser is four times higher when the power double. I some dpss green laser has better relation between cost/power. For example:

CNILASER
$9000/10.000mW (OEM-W-532) = $0.9 per mW of green laser
$600/1.000mW (OEM-H-532) = $0.6 per mW

BOBLASER
$58/200mw laser pointer = $0.29 per mw
$498/1000mw laser pointer = $0.489 per mw

Aptlighting
USD1110/1W Green: $1.11 per mw
USD2560/2W Green: $1.28 per mw
USD4765/3W Green: $1.58 per mw
USD12480/5W Green: $2.496 per mw
USD22080/10W Green: $2.2 per mw

So the idea is combine the many dpss with best cost/relation to produce a huge low cost beam. But I receive the following notice:

"It is not possible (or is very hard) to combine laser beams of the same color from more than two lasers. With two lasers you can use polarizing beam splitters to combine two beams with orthogonal polarization"

"PBS is Polarization synthesis for conbination 2 pcs laser diode with the same color. You cant combine more than two beam."

"For 5*1w, yes there is technical problem for alignment"

BUT I DONT BELIEVE THERE ISNT A WAY TO COMBINE SAME COLOR LASER BEAMS. Some mirrors or optic part should do that.

Anyone can help me?

Thanks
Marcel

[LaNeK779]

search around here for " beam stacking "

this is just a start, search and you will find more

this is just a start http://www.photonlexicon.com/forums/...=beam+stacking

[marcelf]

search around here for " beam stacking "

this is just a start, search and you will find more

this is just a start http://www.photonlexicon.com/forums/...=beam+stacking

Thanks, I didnt know this expression!

[LaNeK779]

a "knife edge or knife edging" is also an expression used

a "pbs cube" could also be a nice keyword

read through, get the basics and ask away if you need anything.