There's also a lot of PR bullshit that gets repeated by the technology
media and in explanations to non technical customers, such as showing
somebody a multimode OM4 cable used for intra-building 100GbE with MPO/MTP
connectors.
100GBase-SR4 optics are cheap (relatively) but require running a MPO/M
Talking theoretical max here. Petabits per second or more.
Nobody really knows for certain.
-Original Message-
From: fiber...@mail.com
Sent: Saturday, October 15, 2016 12:10 PM
To: af@afmug.com
Subject: Re: [AFMUG] Fiber maximum throughout
How many different modes can you put on a
> How many different modes can you put on a fiber???
Singlemode fiber supports, as it's name indicates, one fundamental mode,
which consists of two orthogonal polarization modes.
Multimode fibers support more than 100 modes.
The problem is, we don't have the MIMO technology to deal with mo
How many different modes can you put on a fiber???
Each mode can max out Shannon.
-Original Message-
From: fiber...@mail.com
Sent: Friday, October 14, 2016 11:50 PM
To: af@afmug.com
Subject: Re: [AFMUG] Fiber maximum throughout
Nobody yet knows the theoretical max as you can jack up
> Nobody yet knows the theoretical max as you can jack up the power
> until things start melting and get more bandwidth.
Not quite. You can't just jack up the power, unless you also manage to
improve your SNR. The maximum theoretical bandwidth of singlemode fiber is
dependent on SNR and wheth
Here's a good primer on super channels (larger-than-standard ITU DWDM grid
spacing, high capacity DWDM stuff)
https://www.infinera.com/wp-content/uploads/2015/07/SuperChannel_WhitePaper.pdf
On Fri, Oct 14, 2016 at 4:47 PM, TJ Trout wrote:
> What is the current max throughout that can be sent ov
Max throughput you could do right now with something you can buy, expensive
DWDM systems that can do 200 or 400 Gbps 16QAM modulated "super channels".
Each carrying two or four 100GbE circuits. Multiplied by about 40 channels.
Or 80 channel x 100GbE QPSK or 16QAM modulated DWDM systems with direct
Well, depends on lab stuff or stuff you can buy. Nobody yet knows the
theoretical max as you can jack up the power until things start melting and get
more bandwidth. And you can use goofy modes too. I have heard estimates of 10
petabits per second as something achievable.
This real world sys
