|Cheuk, Shun Wai Daniel
|Attenuation and dispersion limits on transmission distance and bit rate imposed by the employment of fluoride fibres in mid-infrared optical communication systems
|Laser communication systems
Hong Kong Polytechnic University -- Dissertations
|84 p. : ill. ; 31 cm
|An extensive literature search on the latest development in fibres which are suitable for use in mid-infrared communications has been carried out. Various potential fibres, including hollow waveguides, crystalline and glass forms fibres, were considered and it was concluded that from those potential candidates, the fluoride glass fibre, ZBLAN would be the most promising one for use in long haul transmission at the 2.55 um wavelength. Consideration was also given to the required performance from lasers and detectors operating in this wavelength range together with other system requirements such as splice loss, cable loss, non-linearility problem, and WDM. A long-haul, high bit rate optical fibre trunk line using a fluoride fibre and other mid-infrared components was simulated. The maximum repeater span as a function of bit rate was calculated. It was shown that such a system can have repeater spans which are three times longer than those which are possible in the conventional silica-fibre based systems.
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