Custom 405 nm laser transit

[trussmonkey25]

Can anyon build two 500 mw lasers combined into one beam. hosts can be separate but opticaly aligned . both hosts mounted on common chassis . a theaded hole in bottom for camera stand
Anyone up for the challange?
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⸮⸮⸮⸮⸮⸮⸮⸮⸮⸮⸮¤ \ 45° mirror
Two hosts l dichro combiner
⸮⸮⸮⸮⸮⸮⸮⸮⸮⸮⸮¤ ⸮--------------------*
---------------------] optics for narrow beam. burning at 100'
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the reason for 405nm is i want to make scortch mark in drywall and wood surfaces

 

[TheDukeAnumber1]

How much money you got

 

[trussmonkey25]

I'm thinking such system be about worth five or six hundred if it is well made

 

[Mrcrouse]

I'd be willing to do the design and milling/machining for the housing etc. If someone else wants to do the electronics and optics.

 

[TheDukeAnumber1]

What two wavelengths do you want to combine?

 

[trussmonkey25]

I just want a full watt or more of 405 to burn at quit a distance. or two blue 445 2.2s

 

[Mrcrouse]

Something I threw together quick:



2.5" wide x1.625" tall x 4.25" long. Tripod mounting hole centered in bottom, 3 diode holes 1" long, 1.5" long x 2" wide x 1" deep on both sides for electronics or optics. The lengths can be changed.

Thoughts?

 

[trussmonkey25]

Thanks...that's the general Idea

 

[Leodahsan]

Oh well. I've been thinking about that and it should not be easy...
If its a 445 build (multimode) it will require a waveplate, otherwise the laser will have a "+" far field beam pattern...

So 2 diodes + 2 lens (G2?) + 2 drivers + PBS (for combining) + waveplate (for "turning" the "+" and achieve a"-") + custom host + power supply (big batteries)... it should be more than 450$ cost. Plus alignment. Its not going to be cheap.

Its feasible... I'd try if I didn't live in a country where shipping costs 40$ for a 250 gram package :banghead:.

 

[bloompyle]

I'd be willing to do it if it were 2 405's. Though if it's 2 445's, I'm far from interested, never worked with a waveplate.

 

[trussmonkey25]

I'd be willing to do it if it were 2 405's. Though if it's 2 445's, I'm far from interested, never worked with a waveplate.

Are you going to build the whole thing? Or co-ordinate the build. The challenge.is that it must leave burn mark in drywall or wood at more than Fifty feet away within a second or two.

 

[Mrcrouse]

Are you going to build the whole thing? Or co-ordinate the build. The challenge.is that it must leave burn mark in drywall or wood at more than Fifty feet away within a second or two.

That's not really something you can spec out for people to build.

 

[bloompyle]

I was going to do the electronic aspect. Though I don't have 50ft, or wood that I'm willing to mark besides my wall, so I guess I'm dropping out completely. Unless you want someone to just build you a 1W+ 405. I can do that.

 

[trussmonkey25]

Bloompyle, tell me what you need in pm

 

[TheDukeAnumber1]

Are you going to build the whole thing? Or co-ordinate the build. The challenge.is that it must leave burn mark in drywall or wood at more than Fifty feet away within a second or two.

That's a tall order to fill as far as power and alignment in a custom build, if even possible with the 500mw 405nm diodes that aren't necessarily reliable.

 

[trussmonkey25]

We thats why Im calling on the best of the best. and comming to this fourum to see if it can be done..or get a diffferent system built such as a dual 445 with great optics