Citation: |
Feng Song, Gao Yong, Yang Yuan, Feng Yuchun. Mode analysis and structure parameter optimization of a novel SiGe-OI rib optical waveguide[J]. Journal of Semiconductors, 2009, 30(8): 084008. doi: 10.1088/1674-4926/30/8/084008
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Feng S, Gao Y, Yang Y, Feng Y C. Mode analysis and structure parameter optimization of a novel SiGe-OI rib optical waveguide[J]. J. Semicond., 2009, 30(8): 084008. doi: 10.1088/1674-4926/30/8/084008.
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Mode analysis and structure parameter optimization of a novel SiGe-OI rib optical waveguide
DOI: 10.1088/1674-4926/30/8/084008
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Abstract
The mode of a novel SiGe-OI optical waveguide is analyzed, and its single-mode conditions are derived. The Ge content and structure parameters of SiGe-OI optical waveguides are respectively optimized. Under an operation wavelength of 1300 nm, the structures of SiGe-OI rib optical waveguides are built and analyzed with Optiwave software, and the optical field and transmission losses of the SiGe-OI rib optical waveguides are analyzed. The optimization results show that when the structure parameters H, h, W are respectively 500 nm, 250 nm, 500 nm and the Ge content is 5%, the total power loss of SiGe-OI rib waveguides is 0.3683 dB/cm considering the loss of radiation outside the waveguides and materials, which is less than the traditional value of 0.5 dB/cm. The analytical technique for SiGe-OI optical waveguides and structure parameters computed by this paper are proved to be accurate and computationally efficient compared with the beam propagation method (BPM) and the experimental results. -
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