61.   The write-down by Verizon would be another example of how the rapid expansion of fiber optic networks in the last few years created a glut of capacity.

62.   This is done to feed huge multimedia files over fiber optic networks that have a finite transmission capacity.

63.   This time, the sensors, modified versions of devices normally used in fiber optic networks, showed that the device was producing single photons.

64.   TyCom builds underwater fiber optic networks for communications companies, and has spent billions of dollars on its own network.

65.   Xo began its life as Nextlink Communications, a developer of fiber optic networks to provide phone and data services to business customers.

66.   Worldcom Inc., which has reached a deal to acquire MCI Communications, owns or is building high-speed fiber optic networks across Europe.

67.   But neither the trading nor the demand for fiber optic networks lived up to expectations.

68.   Celcom also had similar arrangement with Lembaga Letrik Sabah and Sarawak Electricity Supply Corporation to expand its fibre optic network in East Malaysia.

69.   Each has constructed national and international fiber optic networks and developed sophisticated systems for handling millions of customer accounts.

70.   Global TeleSystems operates a fiber optic network across Europe.