635nm 500mw 3,5x2 beam divergence.

[survey]

Hi people back to school and to the Forum.
Maybe I'm going to spend a lot of time reading all I've missed.
Just wanted to hear from you about these arima diode wich claims
a 3.5 by 2 micrometer divergence.

please look at this:

[steve-o]

3.5 x 1 degree? FA collimation pre-installed? . And the price is.....??

[p1t8ull]

3.5 degrees is over 60mR...

[steve-o]

Most LDs are ~7 x ~15-20 degrees (usually well corrected by a single lens)
Degrees are used for the diode output because it is so large, mR are used as the unit of measurement after optic correction in diode lasers or as the divergence measurement in gas lasers.

[p1t8ull]

I know

3.5x1 degrees sounds waaay too small for an uncollimated multimode diode

[steve-o]

The spec sheet says that it has the fast axis collimation lens built into the diode assembly. I assume it is some sort of micro-lens.