1.   And Nortel has provided its expertise in networking, as well as optical networking.

2.   Along with wireless Net access, optical networking is one of the hottest fields in telecommunications.

3.   In the case of optical networking, the company also made a bet that has yet to pay off.

4.   Intelcorp is making specialty fiber for devices used in optical networking.

5.   Landis is much more bullish on optical networking, which is, naturally, more difficult to understand than software.

6.   Lately, optical networking has taken on a buzz.

7.   Many of them are in Massachusetts, which has become the epicenter for optical networking.

8.   Most of the advances in optical networking in recent years have applied to long-distance networks that transmit information among cities or across continents.

9.   Nortel has seen its shares tumble in the last several weeks after reporting lower-than-expected sales of optical networking.

10.   That makes the tiny devices huge in the world of optical networking, where they can be used in arrays of tiny mirrors that switch light in telecommunications equipment.