Design fabricate and determination of the characteristic optical fiber lens / Mohd Hazwan Abdul Rahman

The efficient coupling between fiber to laser diode or fiber to fiber has been problem in general of general concern since the advent of fiber-optic communication system. Fiber lens are regularly used in fiber coupling. Fiber lens also particularly attractive in optical fiber communication, as they make the design of more compact optical component and modules possible But the efficiency of the need to be improved since the large working distance and the large beam waist had been concern as a problem. The fiber lens were made by using optical fusion splicer Type-36 by melting the tip of the fiber. The variable of the lens fabricate to create the variable of beam output which is ball lens, tapered ball lens, hemispherical, tapered hemispherical, conical and tapered conical. So to evaluate the performance of the fiber lens, one need to measure its characteristic, including the location of focal point, the working distance and the beam waist. The properties of the designed fiber lens can be simulating in the ZEMAX to see to characteristic of the fiber lens. As project, the tapered conical have the smallest working distance and compatible beam waist for coupling.