Optical Communication over Plastic Optical Fibers: by Mohamed Atef

By Mohamed Atef

This booklet offers high-performance info transmission over plastic optical fibers (POF) utilizing built-in optical receivers having solid houses with multilevel modulation, i.e. a better sensitivity and better information cost transmission over an extended plastic optical fiber size. built-in optical receivers and transmitters with excessive linearity are brought for multilevel verbal exchange. For binary high-data fee transmission over plastic optical fibers, an leading edge receiver containing an equalizer is defined prime additionally to a excessive functionality of a plastic optical fiber hyperlink.
The reasonable usual PMMA SI-POF (step-index plastic optical fiber) has the bottom bandwidth and the top attenuation between multimode fibers. This small bandwidth limits the utmost facts cost which are transmitted via plastic optical fibers. to beat the matter of the plastic optical fibers excessive transmission loss, very delicate receivers needs to be used to extend the transmitted size over POF. The plastic optical fiber restricted bandwidth challenge might be lowered by utilizing multilevel signaling like multilevel pulse amplitude modulation or through the use of an equalizer for binary facts transmission.

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The lowest attenuation values occur at 520 nm (green), 560 nm (yellow) and 650 nm (red), Fig. 2. The difference in the transit time of different rays in the core leads to a broadening of the light pulses launched. Possible bit rates are limited to about 100 Mbit/s over 100 m for SI types. Modified index profiles allow higher transmission data rates. 5. The maximum operation temperature ranges from +70 up to +85 ◦ C depending on the application. 1 POF Frequency Response and Bandwidth A pulse, during its propagation through the fiber, experiences a spread known as dispersion.

2) The minimum optical power is chosen to be larger than zero to improve signal response of the laser diode, regarding response time and overshoot. The ratio between maximum optical power and minimum optical power is called extinction ratio (ER) [52, 53] and can practically range from 2 to 10. 3) 50 4 High-Speed Transmission over Step-Index PMMA Plastic Optical Fibers Another important parameter of a laser source is the average emitted laser power PAVG [53]. 5) calculates from extinction ratio and average optical power the modulation of the power.

2) The minimum optical power is chosen to be larger than zero to improve signal response of the laser diode, regarding response time and overshoot. The ratio between maximum optical power and minimum optical power is called extinction ratio (ER) [52, 53] and can practically range from 2 to 10. 3) 50 4 High-Speed Transmission over Step-Index PMMA Plastic Optical Fibers Another important parameter of a laser source is the average emitted laser power PAVG [53]. 5) calculates from extinction ratio and average optical power the modulation of the power.

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