Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Technology Stocks : LAST MILE TECHNOLOGIES - Let's Discuss Them Here -- Ignore unavailable to you. Want to Upgrade?

To: Geof Hollingsworth who wrote (6268)	1/15/2000 1:18:00 PM
From: Frank A. Coluccio	Read Replies (1) \| Respond to of 12823

It really does get down to their ability to do resonant filtration, with high "Q," then, doesn't it? "Q," in this case, defines the permissiveness of a given wavelength (the opposite of resistance or blocking), or the depth of the "notch," and the "cutoffs" above and below that notch for any given wavelength. IMO, these will be achieved through organic means under semiconductor-like controls more readily and more suitably (in terms of speed of switching, dynamic adaptation, etc.) than through purely optical means which employ lenses, mirrors and moving parts, hence the allure of chip based designs. Geof, I replied to someone's question which implied an inherent difference between photon and soliton handling, by stating that they are not mutually exclusive to one another, rather that soliton action was one of how encoding took place. In a subsequent message you expanded on this by citing NRZ line coding. Message 12577066 At that point, you seemed also to make a distinction between pure OC768 single streaming over a strand, and the use of many lower speed streams over DWDM. In the former you cited how NRZ would encounter difficulties due to dispersion, but how at the lower rates per lambda on DWDMs, this would be less likely. Granted, but in the process you may have given some readers here the impression that DWDM lambdas do not employ NRZ as well. Was that your intent? In any event, please clarify that for us. I would like to get back to this at some point to discuss alternative line coding techniques that we might expect to see, going forward. NRZ in this case does not imply absolute on-off optical action, rather, here it is used to connote more intensity and less intensity with the lower intensity state acting like a zero reference point. I know that you know this, and I offer it just in case others may be wondering about it. Also, would you mind either correcting my handling of the soliton-photon question, or expanding on it, if you would? You seem to have delved more deeply than the average respondent here in these matters, and I'd like to read more of your take on this topic. Thanks in advance. And of course, any corrections that you can offer concerning this message would be welcome, as well. Regards, Frank Coluccio