both.
Regards,
Roderick.
From: Eric Kuhnke
Sent: Friday, July 8, 2016 11:45 PM
To: Rod Beck
Cc: nanog@nanog.org
Subject: Re: Interesting Article on Modulation Schemes
Not just "talking about" 16QAM is in active use for subsea high capacity
channels...
://digital.lightwaveonline.com/lightwave/20130708/?pm=1&u1=friend&pg=19#pg19.
- Roderick.
From: Eric Kuhnke
Sent: Friday, July 8, 2016 10:40 PM
To: Rod Beck
Cc: nanog@nanog.org
Subject: Re: Interesting Article on Modulation Schemes
Essentially the transceiver op
derick.
>
>
> --
> *From:* Eric Kuhnke
> *Sent:* Friday, July 8, 2016 10:40 PM
> *To:* Rod Beck
> *Cc:* nanog@nanog.org
> *Subject:* Re: Interesting Article on Modulation Schemes
>
> Essentially the transceiver optics are applying the sam
Essentially the transceiver optics are applying the same modulation and
coding that have been used in point-to-point microwave for a long time...
Starting from OOK, up to BPSK and then on to QPSK, 16QAM and possibly 64QAM
with varying levels of FEC.
A singlemode fiber is just an extremely narrow d
The new undersea cable systems are now capable of 18 terabits per fiber pair.
It is interesting how combinations of bits are being represented by
combinations of optical features.
http://www.lightwaveonline.com/articles/print/volume-30/issue-5/features/which-optical-modulation-scheme-best-fits-
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