||In this thesis, we proposed a four-wavelength polymer-based arrayed waveguide grating (AWG) multiplexer developed on a silicon substrate, which are suitable for the Coarse Wavelength Division Multiplexing (CWDM) system. The direct butt-joint coupling without micro-lens is adopted for four-wavelength laser chips at the input ports of polymer-based AWG multiplexer developed on silicon substrate.|
The numerical simulation results show the central wavelengths of four lanes are 1.271, 1.291, 1.311, and 1.331 micrometer, respectively. The simulated values are approximately 1 nanometer away from theoretical ones. The simulated insertion losses are less than 3 dB at lanes operated at wavelengths of 1.291 and 1.311 micrometer. For the lanes operated at wavelengths of 1.271 and 1.331 micrometer, the insertion losses are less than 4 dB.
The curved polymer optical waveguides are fabricated to study the optical performance. Although the rectangular contour is designed for original waveguides, however bell-shaped optical waveguides are obtained due to over exposure in photo-lithography process. The average measured width of end facets of optical waveguides is 6.7 micrometer, it has an error of 4.29% as compared to the design value of 7 micrometer. While the average measured height of end facets of optical waveguides is 5.68 micrometer, it has an error of 18.81% as compared to the design value of 7 micrometer. The difference of measured insertion losses of bell-shaped optical waveguides is 45.56% as compared to the simulated value.
||Cisco Global Cloud Index: Forecast and Methodology, 2016–2021 White Paper.|
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