An acrylic-based 1x2 Y-Branch POF coupler consists of input POF waveguide, a middle high index contrast waveguide
taper and output POF waveguides has been developed. The optical device is based on a 1x2 Y-branch coupler design
with a middle high index contrast waveguide taper. Device modeling has been performed using non-sequential ray
tracing with an insertion loss of 4.68 dB and coupling ratio of 50:50. Low cost acrylic material has been used for the
device substrate. This middle waveguide taper region is constructed on the acrylic block itself without using any
additional optical waveguiding medium injected into the engraved taper region. Fabrication of the devices is done by
producing the device structures on an acrylic block using high speed CNC machining tool. Input and output POF fibers
are inserted in to this device structure in such a way that they are passively aligned to the middle waveguide taper
structure. The measured insertion loss is 7.5 dB and with a splitting ratio of 50:50.
A 1X2 POF splitter based on a Y-branch metal hollow POF coupler design has been developed. The device is composed
of three sections: an input POF waveguide, an intermediate hollow waveguide taper and output POF waveguides.
Simulation based on non-sequential ray tracings have been performed on the POF splitter. Low cost aluminum based
material has been used for the device substrate. Fabrication of the POF splitters are done by producing the device mold
insert using high speed CNC machining tool and short POF fibers at the input and output sections are inserted inside the
mold insert before the interfaces of the hollow waveguide taper. The POF splitter has an average insertion loss of 5.8 ±
0.2 dB, excess loss of 2.8 dB and coupling ratio of 1:1. A video-over POF system test-bed consisting of a POF video
transmitter and receiver has been constructed with a total transmission length of 10 m. The POF splitter has been tested
in the video-over POF system and shows no significant signal degradation.
Among the main objectives of designing a photonics course based on the integration of Science and Technology is to produce job-ready graduates with sufficient fundamental knowledge and hands-on experience with optoelectronics and photonics devices and systems. The course is designed to present the fundamental concepts in photoncis and these concepts are further enhanced with the engineering principles. Hands-on experiments on the basic components are essential in comprehending the principles and knowledge learned earlier. These lead to students who are competent of handling various sophisticated and sensitive photonics equipment and devices, furthermore they will acquire the essential fundamental knowledge and their applications of both the photonics devices plus equipment and the know-how on the telecommunication network systems and protocols.
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