A Cost-optimized System
The Alcatel-Lucent 1692 MSE is a cost-optimized coarse WDM (CWDM) transport system designed to meet the requirements of enterprise and metro access networks. This means that the service provider or enterprise can start with (and pay for) only the number of channels and associated equipment identified by short-term forecasts. As the forecast moves forward in time and as demand increases, the capacity and number of wavelengths can be increased. Alcatel-Lucent further reduces its customers’ initial costs by using small form-factor pluggable (SFP) laser diode modules that do not need to be purchased until the appropriate fibers are lit or new wave- lengths are added. Over time, the 1692 MSE can easily be upgraded (in situ) to the 1696 Metrospan, allowing the introduction of dense WDM (DWDM).
In addition to these low-cost SFP modules, the Alcatel-Lucent 1692 MSE uses a sophisticated optical mux/ demux unit that eliminates the need for an expensive wavelength controller. This provides enterprises and network operators with a low- cost CWDM system, perfectly suited to short-haul and medium-haul applications.
The Alcatel-Lucent 1692 MSE not only provides reliable transport of new revenue generating services for metro- politan markets, but also offers a low-cost solution for cost-sensitive metropolitan access networks and private networks. The Alcatel-Lucent 1692 MSE is a low-cost CWDM trans- port system. It uses laser diodes spaced at 20 nm, thereby relaxing require- ments for the optical mux/demux unit, and reducing the cost of com- ponents. With the wide wavelength range of CWDM, generally no amplifiers are required for ranges less than 80 km.
4 Alcatel-Lucent 1692 Metrospan Edge
