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Technology Stocks : Harmonic Lightwaves (HLIT) -- Ignore unavailable to you. Want to Upgrade?

To: Mark Oliver who wrote (2489)	9/3/1998 9:40:00 PM
From: Hiram Walker	Read Replies (1) \| Respond to of 4134

Mark, a good article about who is testing MetroDWDM ,and most of them are either using HLIT's system or testing it. nelsonpub.com Initial impact Sprint is banking on the belief DWDM will soon move out of the backbone and all the way to the customer. "Five to seven years from now you could see passive optical networks provide a beam of light that hits a neighborhood and is divvied up among end users. This will be done using either a bus technique or as part of a local area ring that provides access to a broadband infrastructure shared by a multitude of carriers," Kaplin says. When will DWDM impact end users? "Products are already being deployed in the core of the backbone," explains Kaplin. "In fact, all new long-haul optical circuits will use wavelength division. This year you'll see it move into the MAN (metropolitan area network) environment and the next generation of networks will be DWDM-based. The final step is to move closer and closer to the customer." Where will it eventually end up? "That's a question for the financial number crunchers rather than the technologists," Kaplin says. The most visible application for DWDM will be connecting ISPs (Internet service providers) to the World Wide Web. This will permit entire communities to have direct T1 access to the WWW. "My take on wavelength division is that it could move the information bottleneck from the network transport system to the Internet content hosts and the application servers that connect to them," says Kaplin At some point WDM techniques eventually may evolve to a point where they could replace future generations of Sonet (synchronous optical network), predicts Kaplin. "At that stage Sonet could become simply an aggregator of different bit streams at the network access point. A synchronous multiplexer could take both electrical and optical payloads from end users and aggregate them as optical channels for transfer across the network using DWDM." For example, Chicago-based 21st Century, the city's first competitive cable franchise holder, is currently connecting multi-tenant office buildings along its lakeshore franchise to its fiber backbone. For a provider like this to make the decision to use DWDM it would have to decide whether it's better to dedicate a fiber to each customer or whether to leverage that fiber by multiplying its channel capacity. Sprint is testing HLIT's system right now,as per John Trail.I figured this would be some time off,since they do not have last mile access. 21st Century is starting to roll,and they are the initial deplyment of HLIT's system. Tim