Fiber Optic Wiki

Usage and technologies

June 25, 2011

Free-space optical links can be implemented using infrared laser light, although low-data-rate communication over short distances is possible using LEDs. IrDA is a very simple form of free-space optical communications. Free Space Optics are additionally used for communications between spacecraft. Maximum range for terrestrial links is in the order of 2 to 3 km (1.2 to 1.9 mi), but the stability and quality of the link is highly dependent on atmospheric factors such as rain, fog, dust and heat. Amateur radio operators have achieved significantly farther distances (173 miles in at least one occasion) using incoherent sources of light from high-intensity LEDs. However, the low-grade equipment used limited bandwidths to about 4 kHz.

About OTDR

June 24, 2011

An Optical Time Domain Reflectometer (OTDR) is used in fiber optics to measure the time and intensity of the light reflected on an optical fiber. More to the point, it is used as a troubleshooting device to find faults, splices, and bends in fiber optic cables, with an eye toward identifying light loss. Light loss is especially important in fiber optic cables because it can interfere with the transmission of data. An OTDR can detect such light loss and pinpoint trouble areas, making repairs easy. The more quickly trouble areas are identified and addressed, the less your fiber optic network will suffer from data transfer problems.

About Fusion Splicer

June 24, 2011

The optical fiber fusion splice device comprises a pair of electric discharge electrodes provided opposed to each other along a predetermined axis, a conductor electrode disposed on one side with respect to a plane with the predetermined axis contained therein, and section for generating electrostatic attraction in the direction tending from the above-described plane toward the one side, between the conductor electrode and the electric discharge path produced between the electric discharge electrodes. The means for generating electrostatic attraction is connected to the conductor electrode. This fusion splicer fusion-splices together the end portions of optical fibers disposed on the other side with respect to the above plane by electric discharge produced between the electric discharge electrodes.

Uses of Fiber Optic Cable

June 24, 2011

There are many uses of fiber optic cables. They are ideal for data transmission, networking, light guides, wiring, and sensory pickup.

Tips to Fusion Splice Your Fiber Optic Cable

June 24, 2011

Talking about splicing fiber optic cable, you will find two different types of splicing processes. Fusion splice will be the first type and the second one will be mechanical splicing. In this article, we are going to talk about fusion splicing since this is the most recommended type due to the less risk of insertion. Here are some tips in splicing your cable by using this certain method.

Optical fiber cable Design(1)

June 24, 2011

In practical fibers, the cladding is usually coated with a tough resin buffer layer, which may be further surrounded by a jacket layer, usually plastic. These layers add strength to the fiber but do not contribute to its optical wave guide properties. Rigid fiber assemblies sometimes put light-absorbing ("dark") glass between the fibers, to prevent light that leaks out of one fiber from entering another. This reduces cross-talk between the fibers, or reduces flare in fiber bundle imaging applications.

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