[104139] in North American Network Operators' Group
Re: [NANOG] DWDM More Details
daemon@ATHENA.MIT.EDU (Dale W. Carder)
Fri Apr 25 14:19:07 2008
Date: Fri, 25 Apr 2008 13:19:04 -0500
From: "Dale W. Carder" <dwcarder@wisc.edu>
In-reply-to: <Pine.LNX.4.44.0804251355410.444-100000@bawx.pilosoft.com>
To: Alex Pilosov <alex@pilosoft.com>
Cc: John Lee <john@internetassociatesllc.com>, NANOG <nanog@merit.edu>
Errors-To: nanog-bounces@nanog.org
On Apr 25, 2008, at 12:58 PM, Alex Pilosov wrote:
> On Fri, 25 Apr 2008, John Lee wrote:
>
> I'd be curious to ask reverse question, did anyone *have* real
> problems
> deploying duct tape systems, or power jitter chromatic dispersion is
> vendor mumbo jumbo designed to make you buy their gear?
> (within the distance limits spec'd, 80km dwdm etc)
What I think you are referring to is known as the
Gordon-Haus effect. This is related to the length
of a strand to the 3rd power, so I would guess for
modern optics / filters, it is a non-issue for 80k.
Dale
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