445 experiments

[mccarrot]

The lens I use is a FL4.1 lens it gives aprox a 1mm x 4mm beam with 2,6mRad on the slow axis.


Wit FL 8 lens you have a 8 x 2mm beam after correction you will have a 8x8mm beam, al little bit fat... but very thight beam specs (<0,5mrad?)


So i think a 4x4 beam after correction with a FL4.6 lens would be better and have <1mrad?

My lens is 42 euro.

[p1t8ull]

Wit FL 8 lens you have a 8 x 2mm beam after correction you will have a 8x8mm beam, al little bit fat... but very thight beam specs (<0,5mrad?)

Yes, or if you correct the fast axis a 2x2 beam with ~2mR divergence is possible.
This isn't an ideal lens for these diodes in this configuration TBH, I was just getting some power figure samples

[holokidd]

i have a bunch of these and i know they worked for the red wavelengths, im just not set up to fire/test any of my 445nm diodes yet........... (they'er still in the box)!


someone in the US who can run a test and post it, that would be great!



I'll trade it for a good 455nm diode !

[swamidog]

you can send one my way.. i assume they're AR coated for "red".

i have a bunch of these and i know they worked for the red wavelengths, im just not set up to fire/test any of my 445nm diodes yet........... (they'er still in the box)!


someone in the US who can run a test and post it, that would be great!



I'll trade it for a good 455nm diode !

[allthatwhichis]

i have a bunch of these and i know they worked for the red wavelengths, im just not set up to fire/test any of my 445nm diodes yet........... (they'er still in the box)!


someone in the US who can run a test and post it, that would be great!



I'll trade it for a good 455nm diode !

I'd be down to test a set; only got one 445 diode available at the moment though.

[ElektroFreak]

Somewhere else here I saw data indicating a loss of around 40% through a prism pair intended for 808nm..

i have a bunch of these and i know they worked for the red wavelengths, im just not set up to fire/test any of my 445nm diodes yet........... (they'er still in the box)!


someone in the US who can run a test and post it, that would be great!



I'll trade it for a good 455nm diode !

[holokidd]

a quick check gives me a 20% loss @532nm, so its possible ...........

Tonight I'll fire up the ol' Omnichrome HeCad and check the loss in 442nm.

[142laser]

Hi All you laser show geeks,
I love laser shows too but some laser nerds like to do spectroscopy, Raman spectroscopy and other really boring shit so does ANYONE know of these new diodes being built up into TEC cooled lasers for the lab? I would go for 500 mW and long lifetime at say 20 degrees C. $500 or less for the whole turnkey laser. Too soon to expect this I guess...best. Phil 142laser, USF Physics

[MisterWilling]

A module is in the works, http://www.photonlexicon.com/forums/...t=11393&page=1

[holokidd]

a quick check gives me a 20% loss @532nm, so its possible .

Tonight I'll fire up the ol' Omnichrome HeCad and check the loss in 442nm.

i was suprised to measure only 30% loss thru both 808nm prisims @442nm, so maybe these are an economical solution?

what kind of losses do you get from your PBS? I have a good number of blue PBS i need to test.......