gan xiao-yong, liu yong-zhi, zhang xiao-xia, et al. Simulation analysis for Ｍach-Ｚehnder waveguide modulators[J]. High Power Laser and Particle Beams, 2003, 15.
Citation:
gan xiao-yong, liu yong-zhi, zhang xiao-xia, et al. Simulation analysis for Ｍach-Ｚehnder waveguide modulators[J]. High Power Laser and Particle Beams, 2003, 15.
gan xiao-yong, liu yong-zhi, zhang xiao-xia, et al. Simulation analysis for Ｍach-Ｚehnder waveguide modulators[J]. High Power Laser and Particle Beams, 2003, 15.
Citation:
gan xiao-yong, liu yong-zhi, zhang xiao-xia, et al. Simulation analysis for Ｍach-Ｚehnder waveguide modulators[J]. High Power Laser and Particle Beams, 2003, 15.
Combined with series expansion method (SEM), threedimensional scalar beam propagation method (BPM) is transformed into the firstorder normal differential equations. And the function of tangent is applied to map the infinite space into a finite space to avoid boundary truncation. Compared with the traditional BPM, this method has the advantages of simple calculation, high calculation efficiency and small deduced matrix. The lithium niobate electrooptic waveguide modulator with MachZehnder structure is simulated by this method. The authors get its optical field distribution and acquire its optimal structure and its power loss curve.
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