Fiber Optic Wiki

FIBER vs COPPER

October 20, 2011

The fiber optic system is similar to the copper wire system that fiber is replacing. The difference being that copper lines utilize electronic pulses to transmit the information; while fiber optic systems use light pulses to transmit information down the fiber optic lines. To visualize the fiber transmission, picture a very long cardboard tube (like from a roll of paper towel) which has been covered with a mirrored surface inside along its length. When you shine a light in one end, you can see the light come out at the other end even if you were to slightly bend the tube, you can still see the light.

Traffic policing parameter

October 19, 2011

Most modern switches and network interface devices (NID) can set different traffic policing parameters. When activated, a policer will monitor the incoming frames and determine their color mode (CM). If the CM is set to color-aware, the policer will then monitor incoming frames and assign them the relative color of green or yellow based on the frame header matching the policer setting and current information rate (IR).

What is Fiber-to-the-Home (FTTH)

October 19, 2011

As a medium for telecommunications, fiber optics is much faster than conventional wire, because it uses light instead of electricity to send information.

FTTH Major Players

October 19, 2011

AT&T: U-Verse maxes out at 18 Mbps, but is cheaper than Comcast and FiOS (excluding New York) at only $100/month. U-Verse uses both FTTH and FTTN technology, depending on the area. The FTTN model is faster and cheaper to deploy than FTTH, but the copper connections to the homes sacrifices speed compared to FTTH. U-Verse is currently in parts of California, Connecticut, Georgia, Indiana, Illinois, Missouri, Michigan, Ohio, Oklahoma, Texas, and Wisconsin. AT&T plans to service 1 million homes by 2008 and 30 million homes by 2010.

Infrastructure Suppliers

October 19, 2011

Given the size and breadth of telecom equipment offerings from Alcatel (ALU) and Tellabs (TLAB) it is likely these two will get the bulk of the fiber business. However, the following are some smaller companies with infrastructure offerings as well:

Penetration of FTTH

October 19, 2011

The greatest rate of FTTH/FTTB adoption is occuring in Asia. About 21% of homes in Hong Kong have FTTH and South Korea has 19.6% of homes connected to FTTH. The main reason for the huge penetration in Asia, as opposed to the US, is that the governments of countries such as Japan and South Korea are specifically promoting this technology as a part of their national strategy.

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