Acta Optica Sinica, Volume. 31, Issue 8, 813001(2011)
Analysis of Single-Mode Condition for Organic Polymer Asymmetric Ridge Waveguide
The fundamental mode cut-off and single-mode conditions of asymmetric ridge waveguide under different ridge heights, ridge widths and the short side widths of core plate are systematically studied in semi-vector finite-difference beam propagation method (FD-BPM) with organic polymer asymmetric ridge waveguide as the object. The result shows that both fundamental mode cut-off area and single-mode area increase with reduction of ridge height and ridge width while single-mode area decreases with reduction of short side width of core plate at a certain core height. The structure is optimized as core height h≥1.5 μm, ridge height (H-h)≤0.4 μm, ridge width 4 μm≤w≤8 μm, short side width s=2 μm. The research shows that the single-mode area of asymmetric ridge waveguide meets requirements of practical application.
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Gao Yuan, Zhang Xiaoxia, Liao Jinkun. Analysis of Single-Mode Condition for Organic Polymer Asymmetric Ridge Waveguide[J]. Acta Optica Sinica, 2011, 31(8): 813001
Category: Integrated Optics
Received: Dec. 2, 2010
Accepted: --
Published Online: Jul. 4, 2011
The Author Email: Yuan Gao (gaoy3582@163.com)