25 Jul
2008
25 Jul
'08
12:33 a.m.
A reasonable bit rate these days is 100 Gbit / sec with the high dollar lab
stuff pushing into the Terabit range....
Chuck, using ECL Gbit stuff is do-able and would shorten the length of the
fibre...? A 1 Meg static RAM just sounds too easy.
Best regards, Steven
How
time
What's the maximum bit rate on optical fiber these
days?
Jules Richardson wrote:
>
> Chuck Guzis wrote:
> > 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...
...
>
> JOOI, what was the typical speed for original delay-storage technology? does your
intended 10MHz compare?
Typical bit rates for magnetostrictive delay lines used in 1960s-era
calculators was on the order of 200 - 600KHz. I did calculations for
propagation speed and 'physical bit length' for one of these calcs at one
but don't have the figures at hand.
What's the maximum bit rate on optical fiber these days? If one were to
utilise
the full bandwidth of the fiber to time-slice the
fiber into n channels,
recirculate the bits sequentially through each of those channels, one
could
achieve a factor of n reduction in the length of fiber
needed.