Hello Alex: > Depending how cheap and ghetto you want to get, there's also possibility > of doing WDM on 1310/1300. I have custom-manufactured splitters filtering > 1307nm +-2nm - and any given LR XFP [*1] will be either within that band > or outside [*2]. Test a bunch of them, split them into two groups, use on > the "tested" wavelength. Bunch of friends&family are using this technology > in production. This gives you an ability to do 20G with very cheap optics. > > > [*1] Except ones with very temperature dependent wavelength - mark them as > "warms up to 1300" and use if you don't care that your links will take > about 5 minutes to "warm up" and come up. :) > > [*2] Any LX4 Xenpak would be "outside" of the band as well, and you can > use LX4 concurrently with LR. > > There are some more ghetto fabulous things you can do, described in > http://www.nanog.org/mtg-0610/presenter-pdfs/pilosov.pdf ;) > > -alex > Do you have any issues with four wave mixing or other crosstalk issues or do you account for this in your channel plan?
Regards, Mike
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