Acta Optica Sinica, Volume. 31, Issue 2, 213002(2011)
Analysis and Optimization of Organic Polymer Asymmetric Bent Waveguide
In order to reduce the length of polymer branch waveguide in Mach-Zehnder(M-Z) electro-optic polymer modulator, asymmetric sine-bend ridge waveguide is researched. The transmission loss of asymmetric sine-bend ridge waveguide under different parameters is systematically studied by using the full-vector finite-difference beam propagation method (FD-BPM). The structure is optimized as ridge width w=4 μm, branch height h=11 μm, slab width on core layer of outboard bend s=2 μm, and length of the bend waveguide L=300 μm. The research results have shown that if the symmetric sine-bend ridge waveguide is replaced by asymmetric sine-bend ridge waveguide, the length of branch waveguide can reduce 40% under the same transmission-loss conditions. The results will have a certain reference value to the design of optical waveguide in polymer M-Z modulator.
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Gao Yuan, Zhang Xiaoxia, Liao Jinkun. Analysis and Optimization of Organic Polymer Asymmetric Bent Waveguide[J]. Acta Optica Sinica, 2011, 31(2): 213002
Category: Integrated Optics
Received: Jun. 22, 2010
Accepted: --
Published Online: Jan. 17, 2011
The Author Email: Yuan Gao (gaoy3582@163.com)