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Re: [802.3_NGEPON] ONU ASIC and wavelength plans

Marek,

 

I have a question on something you said here.

You said, “reuse of 1260-1280 band for NG-EPON would block the coexistence / backward compatibility with 10G-EPON”. 

 

That is true if you assume that we are going to use WDMA (wavelength muxing) to combine the 10GEPON and 100GEPON.

 

But, there have been some folks that have talked about using TDMA coexistence.  Do you discount that possibility? 

 

Just trying to understand where you’re coming from. 


Sincerely,

Frank E.

 

 

 

From: Marek Hajduczenia [mailto:marek.hajduczenia@xxxxxxxxx]
Sent: Thursday, February 25, 2016 6:51 AM
To: STDS-802-3-NGEPON@xxxxxxxxxxxxxxxxx
Subject: Re: [802.3_NGEPON] ONU ASIC and wavelength plans

 

Francois,

 

Just one note: we are already using 1260 – 1280nm band for 10G-EPON. XGS-PON is nothing more than 10G-EPON in disguise (yes, they did change a few things at logical layer, so what). I am not sure though what point you’re trying to make – reuse of 1260-1280 band for NG-EPON would block the coexistence / backward compatibility with 10G-EPON, which is one of our goals for the project.

 

If we forgot backward compatibility with 1G-EPON, we have plenty of real estate in O band to work with, without the need to kill off compatibility with 10G-EPON.

 

Marek