re: WDM PON: Sooner Rather Than Later?WDM PON actually builds on GPON/GEPON using CWDM or DWDM technology to overlay PONs of different wavelengths over the same fibers. So the GPON vs. GE-PON 'war' is on.
A second question that should be asked is: isn't it time to revisit the question of PON vs active Ethernet? In many cases, the optical splitter is located in the CO and therefore the fiber infrastructure is identical irrespective of whether one uses PON or active Ethernet. The question remains what makes more economic sense: a WDM-based solution with all the associated costs (manufacturing and management) or a standard solution based on ubiquitous 1GE transponders. Well?
re: WDM PON: Sooner Rather Than Later?A second question that should be asked is: isn't it time to revisit the question of PON vs active Ethernet? In many cases, the optical splitter is located in the CO and therefore the fiber infrastructure is identical irrespective of whether one uses PON or active Ethernet.
I would disagree on your statement GÇ£In many cases, the optical splitter is located in the COGÇ¥ because in PON deployments very few of the splitters are located in the central office. ThatGÇÖs one of the fundamental advantages of PON. You deploy one fiber to the area you are going to serve and locate the splitter there then you run the fibers to your 32 or 64 subscribers as opposed to running an individual fiber from the CO to each subscriber
re: WDM PON: Sooner Rather Than Later?Active Ethernet can be supported over a PON or a typical full duplex fiber no matter where the splitter is. But you can't opreate both at the same time sharing the same wavelength (like 1310nm which is PON upstream and LX tyical lambda) unless... you start playing games with wavelegnths for overlaying technologies... and then you have the WDM network... woops, I brought things full circle
A second question that should be asked is: isn't it time to revisit the question of PON vs active Ethernet? In many cases, the optical splitter is located in the CO and therefore the fiber infrastructure is identical irrespective of whether one uses PON or active Ethernet. The question remains what makes more economic sense: a WDM-based solution with all the associated costs (manufacturing and management) or a standard solution based on ubiquitous 1GE transponders.
Well?