Study of High Efficiency Couplers between Optical Fibers and Silicon Photonic Wires
Date Issued
2007
Date
2007
Author(s)
Hsieh, Jia-Yun
DOI
en-US
Abstract
This thesis presents recent approaches in the development of a Si-based waveguides system for submicrometer devices. A compact and efficient grating coupler for tilt-incident with respect to the vertical axis coupling between optical fibers and silicon photonic wires is proposed. One of the drawbacks of the high index contrast is the large mismatch in mode size and shape between fibers and silicon photonic wires. Hence, a slanted grating with a parallelogram shape is designed through the entire high-index waveguide core. Otherwise, the optical fiber is slightly tilted in order to prevent a reflection and its coupling efficiency will be analyzed. We use R-Soft to simulate various approaches and compare them with slanted grating, and finally we try to find the best solutions.
Subjects
矽光子導線
光柵耦合器
平面波導
光纖
傾斜光柵
積體光學
silicon photonic wire
grating coupler
planar waveguide
fiber
slanted grating
integrated optics
Type
thesis
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