Diode help?

[ElektroFreak]

[QUOTE=andy_con;109741]

ummm rotating the whole things isnt possble as there will be a notch for the tec.

ill have to ave a think on that one

the plan was to flattern part of the copper so i get better tec contact with the copper

Your plan should still work, you just need to plan it out right ahead of time. Also, since you can adjust polarity by rotating the diode you should be able to come up with a good layout. Just refer back to the post earlier where I described the difference between the fast axis and the slow axis. For vertical polarization, the fast axis should be vertical. For horizontal, the fast axis should be horizontal. In your picture of the diode spot on the card, the laser is very nearly horizontally polarized.

[andy_con]

ok cheers .

[FourDee]

You could put the lenses in a tube that slides inside a bore in your copper block and fix it with a set-screw

[andy_con]

i could but thats not as usable as a screw focus

[FourDee]

It would be a slide-focus instead

[smogthemog]

Andy - Here are some pics of my 800mW 635 that I can bring with me to the LEM if you wish and you can have a look at that. It has more or less what you are trying to acheive, in it.

[smogthemog]

Where did you get the lens's from in the end?

Matey from Meredith never did get back to me

[andy_con]

cheers jim, i have had an offer from another forum member to help.

got it from chris the guy who i got the diodes from

[FourDee]

Jim, I've seen those little mounts before and I think there was someone on the forums selling them about 2 jears ago ...
Where are they from?

[shrad]

and where are beams?

seriously, this is really a nice setup, and some beamshots would be nice to appreciate the beam characteristics

great work!