Project "red"

[Phritzler]

Hello!
First, sorry for my bad english...
I don´t write many things here, I´m only the "small listener". I´m more active on another forums.
But I think I will present my new, homebuild red 3.5-4Watts laser.
There are coubled 24 Diodelasers where one Diode will be powered with ca. 180-200mW after the Optics.
All Diodes have their own Drivers, so a 24 Driver supply
On the picture you only see 23 Diodes, I damaged one and haven´t change it before the pic was shot.
I must change the mirrors and Justate the polarisation of the Laserdiodes new. At the moment the outputpower ist only ca. 2 Watts, but after changing mirrors and take some Adjustments I think I come up to 3.5 to 4Watts of nice red
Beamdata after The Collimination Telescope is ca. 4*4mm at <1.5mrad (I think more 1.2mrad).
Yes, the yustate takes manymany hours and you see that the mirrors wasen´t cleande (You see high power red diffused light).

Best Regards,
Phil

[cruch]

OMG!!! That is pure beautyfull!!!
REALLY NICE!!!
I want one

[mliptack]

WOW... that is amazing! Mind to share some insight, I have been planning on doing that.
Where did you get the diodes? How many mW each? Did you follow any instructions?

I would really appreciate your help, I have been wanting to work on something like this for about a year now, and havent had the time/funds, but I have been trying to do the research and come up with nothing...

Also if you have any more pictures to share it would me MUCH appreciated... as much as I enjoy building, I also like to see how other people build... it's quite intriguing.

[Phritzler]

Hello!
The Diodes are Hitachi Types who runs on 180-200mW, the optic damage 20% of power, so the direkt Diode output is ca. 216-240mW.
The complete diode "blocks" with holders will be stabilize by Tec Elements on ca. 22Degrees, but I haven´t mount the peltier elements now (will come in future... )
You should look for very good mirrors, my mirrors lost ca. 12% power per mirror!
And don´t use normal Mirrorholders for it, they wouldn´t be stabile enought!
fG
Phillip

[carmangary]

That's pretty cool and all but will it pop a balloon?

[Phritzler]

Hello!
Haven´t test it with balloons, but white paper will burn, also carton...
-Phil

[mliptack]

Wow I am still in awe!

lol I bet that one focal point wouldn't have that much trouble popping balloons.... hahahaha

Also I assume all the diodes on one side are horizontally polarized and the other side vertically polarized... so that they match up one to one on that final mirror...?

(Sorry I keep editing this...)

Could you let me know what type of lenses you used for combining your final beam... like I said I am not very good with optics any help in that area would be really helpful!

[buffo]

Phil, I am impressed! You have put a *lot* of work into that! I'm amazed that you are getting such good beam quality after mixing the beams from so many diodes. (24!!!!)

You should get a job working for the people at Arctos lasers! (They build laser systems that look a lot like what you have built.)

I wonder.. How long did it take you to align all the beams?

Adam

[Phritzler]

Hello!
Thanks
I take ca. 1 Week for build the complete laser, justating ca. 2 Days (ground justate only some hours, but I must stabilize the system so adjust 5 times new... I don´t know how to say it in english )
Yes I was also amazed about the good beamdata!
But I use 3 Lens optics to colliminate the beam of each diode, the beam output is 5mm, but "NO"(very small) divergence. With that I can become good beamdata! I have take a lot of experiments that I can get it stable :-)
I think I´m to young for work for arctos
Greetings
Phi

[DZ]

Damn, that is very nice. I think I may have a new project to work on!