[Laser] Retro-Reflector test

[Chuck Hast]

On 5/10/07, Jens-Peter Gärtner <lev1985 at web.de> wrote:
> Hi Chuck,
>
> i've no experience in transmitting data at such rates over a light beam
> and i'm really curious to hear about your results. So if i got it right
> you want to ask-modulate the laser-beam. What's with man made
> interferences? Or doesn't that play a big role at short distances?
>
By the time you add your optics and filters, the man made stuff is way down
from the laser radiation by a long shot. As I get the link up and running I will
publish the info. Yes OOK is the most common mode of modulation, and from
there they may PWM it, Also in order to get higher speeds the laser maybe
AM modulated so as not to totally turn it off and to speed up the transistion
from low to high. Turning it off is no big deal but getting it on can take a bit
of time so AM is better, but right now I can get it fast enough with OOK.

-- 
Chuck Hast  -- KP4DJT --
To paraphrase my flight instructor;
"the only dumb question is the one you DID NOT ask resulting in my going
out and having to identify your bits and pieces in the midst of torn
and twisted metal."