24 Jul
2008
24 Jul
'08
midnight
Chuck,
If you kicked your clock rate up to 100 MHz you would only need about 3048
Kilometers of fibre .....
Best regards, Steven
P.S. What about bouncing a beam of coherent light between two not quite so
parallel front-surface mirrors .... ?
P.P.S. Maybe a SAW device and a piece of glass... ?
Subject: Re: Pointless question...
On 23 Jul 2008 at 22:08, Scanning wrote:
> It has to be done in hardware otherwise why bother. If you want the
respect
> and awe of the group show us your gravitas and
use a spool of fibre
optic
> cable as the "media" and blink your
data in through an LED or LASER
diode. A
> photo transistor or photo PIN diode at the end
will read your data so
that
> it can be replicated at the beginning of the
fibre and start the whole
loop
over again.
Makes me tingle just thinking about it.
Crikey, I couldn't afford enough fiber to recirculate a megabit!
Let's see--I'm after a 10MHz bitrate and the speed of light through
glass is about 2.00x10**8 m/sec...
Think of the logic speed that would be required to keep track of
position of any given bit within the loop... !
Cheers,
Chuck