Enhanced Optical Splitting using Asymmetric Optical Fibre Devices

    Project Code: 196
    An optical splitting device that enables generation of different output power. The invention relates to several methods of producing polymer optical splitting device. The method allows different output power to be generated from a 1xN (2,4,8,..N) device. Based on a simple cascading of Y-branch device with asymmetric splitters.
Project Overview
The burst of global information technology has set the need for transmission of enormous amount of data over short as well as very long distances. This demand for high capacity data transmission over both short and long hauls has become an increasingly everyday necessity. In addition to the conventional single mode optical fiber, a new type of optical fiber namely the Plastic Optical Fiber (POF) has been around for nearly 30 years. Due to its high attenuation and the lack of demand of specific commercial applications, POF had remained rather stagnated for years. However, since the invention of the graded-index plastic optical fibers by Professor Koike at Keio University (1990) and the development of the low attenuation perfluorinated fibers (1996), a lot of interests on POF have been received, which to give rise to a great deal of applications. The invention is based on a 1 x N asymmetric coupler design. The device design structure allows various ratios of optical output power to be generated, from 1% and up to 99%. This invention also allows the number of output ports to be more than 2, i.e 1x3, 1x4 up to 1xN.

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