FIBER SOURCE

What are Optical Signals?

By Steve Harris – Light is EM energy waves that travel through free space at about 3 x 108 m/s. To harness the power of light for transmitting information, a channel or wave guide in the form of optical fiber is used to transmit information over an access network.

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Inside Single-Mode Fiber G.657

By Steve Harris – For long-reach applications in the transport and access applications, cat A provides two sub-categories: A1 and A2. The G.657.A1 allows a 10 mm minimum design radius, while the G.657.A2 allows a 7.5 mm minimum design radius. These are both improvements over 15 mm to 30 mm in G.652.

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How Do We Use Optical Power Budgets?

By Steven Harris – Now that we understand the dBm and mW values, let’s return to the budget. A budget equation will take into account the various forms of loss that will be experienced in a fiber optic network.

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Optical Dispersion

By Steven Harris – It is important to collaborate with our vendor community, the SCTE·ISBE standards programs and stay well-educated in the area of fiber optics with SCTE·ISBE offered resources.

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The Digital HFC — A Path to 10G

By Steven Harris — Seasoned telecommunication professionals are well aware of the improvements digital video offered over analog video in the network. Operators leveraged Moving Picture Experts Group (MPEG) digital video and RF quadrature amplitude modulation (QAM).

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