IR laser modem
Todd Peterson email (remove spam text)
You won't, of course, be able to switch the LASER on and off that fast.
I assume you mean you are looking for a liquid-crystal shutter that can
be used to block/ transmit the beam?
What speed do you wish to communicate at? What (approx.) will be the beam
to me modulated by the LCD shutter? Just curious, what are you building?
>> the most restrictive, since the potential for eye damage is great. However,
>> visible lasers are allowed about 10 times as much power. So the place to
>> start would be with a laser pointer or similar device.
>Do you know of any such devices that can be used for this purpose?
>It has to be possible to switch them on and off repeatedly very fast
>since the only easily usable modulation is (so far as I know)
>amplitude modulation (ie. two states, on and off).
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seeking: microchip math math
See also: www.piclist.com/techref/io/irs.htm?key=ir
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