Look at this pic
A lot of de-soldering. Probably diodes are pressed. All of them individually collimated, thus most likely the replaced diode will have not ideal collimation.
A lot of fun is waiting for you.
Yup, looks like diodes with FAC lenses, followed by two cylindrical lenses then mirrors.
Here you can see the laser diode orientation. The fast axis is horizontal.
With the laser beams the width on horizontal axis is quite narrow for the fast axis >> FAC.
Hi,
It's a long shot. Most of you know a famous projector stuffed with a lot of laser diodes what shine on a yellow wheel. The wheel is rotated by a motor. Thus, my question.
What is this motor?
It has seven pins. Some numbers on the cable but nothing googles out. Thnx for any help.
Aspherical lenses usually are design to collimate beams. You can read about them at http://www.lightpath.com/wp-content/uploads/2015/11/Using-Precision-Molded-Aspheres.pdf
There are special ones for fiber coupling (or imaging) when a single one does a job. Usually the distances are very short...
+ responding in a manner that the project has some "secrecy" will turn people away. YOU need help. OP, if you can not share information you shall consider hiring consultants and signing NDAs.
Also look at local laws about using powerful lasers outside.
Late to the party :)
If really a stable operation is needed, you shall have an active temperature controller for the whole unit and a stable voltage supply for the heater. The laser driver shall be stable too (I think that is obvious). Even that is not enough for a long term. An external...
Beautiful color!
Is it a duct tape on a heatsink? Do you really need it? It covers quite a lot of surface and reduced heat exchange.
Also consider blowing area across the laser base (not a long) to reduce flowing air influence on the beam.