41.   MRV designs, manufactures and sells products that convert electrical impulses to light that is transmitted along fiber optic cables at high speed and over long distances.

42.   One reason is the superior performance of fiber optic cable.

43.   Other cable companies are also developing Internet access, though it requires some upgrading of old lines to fiber optic cable.

44.   San Francisco has already tried to streamline the permit process for rewiring warehouses with fiber optic cable, and rezoning industrial buildings for office use, she said.

45.   SDL makes fiber optic cables, lasers and other products for use in video, medical and data storage applications.

46.   Rising raw material costs and falling product prices also hurt margins for fiber optic cables.

47.   Saint-Jean also said CTC Mundo may participate in a fiber optic cable that would link Chile to Australia.

48.   Teaming up with Endesa, which already has a network of fiber optic cables laid for its electricity operations, is also seen as an advantage.

49.   Suddenly, it was cheaper to change how signals were sent than to lay more fiber optic cable.

50.   That means that data providers have a way to create broadband service in areas not yet served by fiber optic cable.