Archived — Fiber Optic Cable
What is Optical Fiber Dispersion?
Dispersion is the spreading out of a light pulse in time as it propagates down the fiber. Dispersion in optical fiber includes model dispersion, material dispersion and waveguide dispersion. Each type is discussed in detail below. Model Dispersion in Multimode Fibers Multimode fibers can guide many different light modes since they have much larger core size. This is shown as the 1st illustration in the picture above. Each mode enters the fiber at a different angle and thus travels at different paths in the fiber. Since each mode ray travels a different distance as it propagates, the ray arrive at
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What Are Optical Fiber Core Size, Mode Field Diameter and Numerical Aperture?
There are several important factors determine the optical fiber’s capability to collect light and transmit it along the fiber. These factors include optical fiber’s core size, its mode field diameter and its numerical aperture. What is optical fiber’s core size? Core size is the physical dimension of the fiber core. The core’s size has a big impact on coupling light into a fiber. The core’s size has to be at least as big as the light source in order to collect light efficiently. If the light source is larger than the fiber core, much of its power goes into the
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Ethernet Over Plastic Optical Fiber
This article describes the development of Ethernet networking over Plastic Optical Fiber (POF). You can get the plastic optical fiber here or by clicking on the following picture. The Benefits of Plastic Optical Fiber POF Plastic optical fiber has emerged as a low cost alternative to twisted pair copper cabling and coaxial cables in office, home and automotive networks. Why? POF has many benefits. POF is lightweight POF is robust POF is cheap POF is easy to install. You can cut POF with a sharp blade and no expensive and time-consuming polishing as with glass fibers Most important of all,
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High Bandwidth Plastic Optical Fibers
This article describes the design and applications of high bandwidth plastic optical fibers. You can get the plastic optical fibers here or by clicking on the following picture. Until early 1990s, plastic optical fibers didn’t have high bandwidth and there were very few reports regarding high bit rate transmission by plastic optical fiber. The reason for that is there were no good laser diode and photodetector for POF. However in 1994, NEC reported that they succeeded in a 2.5Gb/sec data transmission experiment with plastic optical fiber. Thus much more interest has been focused on plastic fiber data link. Since
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Armored Fiber Optic Cable
This article describes the structure of armored fiber cables and their benefits for the network owner. You can get the armored fiber optic cable products here or click on the following picture. The Structure of an Armored Fiber Optic Cable Armored fiber cables have extra reinforcing in the cable housing to prevent damage. In basic armored fiber cable designs, the outer sleeve provides protection against wind, solvents, and abrasion. This outer sleeve is usually made of plastic such as polyethylene. The next layer between the sleeve and the inner jacket is an armoring layer of materials that are difficult to
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