Frontiers of Optoelectronics, 2013, 6 (3): 290, 网络出版: 2014-03-03  

Design optimization of microwave properties for polymer electro-optic modulator using full vectorial finite element method

Design optimization of microwave properties for polymer electro-optic modulator using full vectorial finite element method
作者单位
Department of Electrical Engineering, Faculty of Electrical and Computer Engineering, Shahid Beheshti University, Tehran 1983963113, Iran
摘要
Abstract
In this paper, a polymer electro-optic modulator has been designed and optimized using the full vectorial finite element method. For this purpose, the effects of magnesium oxide (MgO) and down cladding thicknesses, distance between two ground electrodes, hot electrode and modulator widths modulator on the key modulator parameters, such as microwave effective index nm, the characteristic impedance ZC and the microwave losses α are presented. After selecting optimal dimensions of polymer electro-optic modulator, frequency dependent aforementioned parameters and the half-wave voltagelength product (VπL) parameter of polymer electro-optic modulator are extracted and as a consequence, an optimized design is reported. Finally, the optical and electrical modulation responses of polymer electro-optic modulator are calculated. The optimized polymer electrooptic modulator exhibits 3-dB electrical bandwidth of 260 GHz and VπL about 2.8 V·cm in this frequency.
参考文献

[1] Zhang C, Dalton L R, Oh M C. Low Vπ electrooptic modulators from CLD-1 chromophere design and synthesis, material processing, and characterization. Chemistry of Materials, 2001, 13(9): 3043-3050

[2] Abedi K, Vahidi H. A polymer electro-optic modulator with ultra wide-band and low driving voltage. Optoelectronics Letters, 2011, 7(6): 423-426

[3] Gorman T, Haxha S, Ju J J. Ultra-high-speed deeply etched electrooptic polymer modulator with profiled cross section. IEEE Journal of Lightwave Technology, 2009, 27(1): 68-76

[4] Cui Y, Berini P. Modeling and design of GaAs traveling-wave electrooptic modulators based on the planar microstrip structure. IEEE Journal of Lightwave Technology, 2006, 24(6): 2368-2379

[5] Obayya S S A, Haxha S, Rahman B M A, Themistos C, Grattan K T V. Optimization of the optical properties of a deeply etched semiconductor electrooptic modulator. IEEE Journal of Lightwave Technology, 2003, 21(8): 1813-1819

[6] Rahman BMA, Haxha S. Optimization of microwave properties for ultrahigh-speed etched and unetched lithium niobate electrooptic modulators. IEEE Journal of Lightwave Technology, 2002, 20(10): 1856-1863

[7] Gorman T, Haxha S. Thin layer design of X-cut lithium niobate electrooptic modulator with slotted SiO2 substrate. IEEE Photonics Technology Letters, 2008, 20(2): 111-113

[8] Gorman T, Haxha S. Design optimization of Z-cut lithium niobate electrooptic modulator with profiled metal electrodes and waveguides. IEEE Journal of Lightwave Technology, 2007, 25(12): 3722-3729

[9] Gill D M, Chowdhury A. Electro-optic polymer-based modulator design and performance for 40 Gb/s system applications. IEEE Journal of Lightwave Technology, 2002, 20(12): 2145-2153

[10] Abedi K, Vahidi H. Structure and microwave properties analysis of substrate removed GaAs/AlGaAs electro-optic modulator structure by finite element method. Frontiers of Optoelectronics, 2013, 6(1): 108-113

[11] Saitoh K, Koshiba M. Full-Vectorial finite element beam propagation method with perfectly matched layers for anisotropic optical waveguides. IEEE Journal of Lightwave Technology, 2001, 19(3): 405-413

[12] Koshiba M, Maruyama S, Hirayama E. A vector finite element method with the high-order mixed-interpolation-type triangular elements for optical waveguide problems. IEEE Journal of Lightwave Technology, 1994, 12(3): 495-502

[13] Lucic R, Bernadic A, Juric-Grgic I. FEM analysis for MTL problems in frequency domain. International Review on Modelling and Simulations (IREMOS), 2009, 2(3): 249-253

[14] Koshiba M, Inoue K. Simple and efficient finite element analysis of microwave and optical waveguides. IEEE Transactions on Microwave Theory and Techniques, 1992, 40(2): 371-377

[15] Arroyo J, Zapate J. Subspace iteration search method for generalized eigenvalue problems with sparse complex unsymmetrc matrices in finite-element analysis of waveguides. IEEE Transactions on Microwave Theory and Techniques, 1998, 46(8): 1115-1123

Kambiz ABEDI, Habib VAHIDI. Design optimization of microwave properties for polymer electro-optic modulator using full vectorial finite element method[J]. Frontiers of Optoelectronics, 2013, 6(3): 290. Kambiz ABEDI, Habib VAHIDI. Design optimization of microwave properties for polymer electro-optic modulator using full vectorial finite element method[J]. Frontiers of Optoelectronics, 2013, 6(3): 290.

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!