Demonstration of a high-speed switch with coplanar waveguide electrodes based on electro-optic polymer-clad waveguides

In this paper, a high-speed Mach–Zehnder interferometer type of electro-optic switch with coplanar waveguide electrodes was studied. The characteristic parameters of the switch were carefully designed and simulated. The fabrication was done by using standard semiconductor fabrication techniques such as spin-coating, photolithography, and wet etching. The device was fabricated based on electro-optic polymer-clad waveguides with the simple wet-etching procedure. The device shows a low insertion loss of about 7.3 dB. The measured switching rise time and fall time are 29.00 and 30.89 ns, respectively. This waveguide structure and the fabrication process are shown to be valuable for EO switches and modulators application.

[1]  J. Qin,et al.  High-generation second-order nonlinear optical (NLO) dendrimers: convenient synthesis by click chemistry and the increasing trend of NLO effects. , 2010, Angewandte Chemie.

[2]  N. Xie,et al.  Very Low-Power, Polarization-Independent, and High-Speed Polymer Thermooptic Switch , 2009, IEEE Photonics Technology Letters.

[3]  A. Jen,et al.  Highly efficient and thermally stable nonlinear optical dendrimer for electrooptics. , 2001, Journal of the American Chemical Society.

[4]  Z. Daming,et al.  Properties of DR1/PMMA-co-GMA for High Speed Electro-optical Switch , 2012 .

[5]  Christopher T. DeRose,et al.  Hybrid electro-optic polymer/sol-gel waveguide directional coupler switches , 2009 .

[6]  Jian Sun,et al.  Design and fabrication of DR1/PC-based electro-optic switch , 2015 .

[7]  M. E. Wright,et al.  Multi-month thermal aging of electro-optic polymer waveguides: Synthesis, fabrication, and relaxation modeling , 2007 .

[8]  Zhen Zhen,et al.  Recent advances in polymer electro-optic modulators , 2015 .

[9]  W. Steier,et al.  Analysis and Demonstration of Mach–Zehnder Polymer Modulators Using In-Plane Coplanar Waveguide Structure , 2007, IEEE Journal of Quantum Electronics.

[10]  Y. Enami,et al.  Simulation for Optical Response of High-Speed Traveling Wave Electro-Optic Polymer/TiO2 Multilayer Slot Waveguide Modulators , 2012, IEEE Photonics Journal.

[11]  Po Dong,et al.  High-speed low-voltage single-drive push-pull silicon Mach-Zehnder modulators. , 2012, Optics express.

[12]  W. Steier,et al.  Overlap integral factor enhancement using buried electrode structure in polymer Mach-Zehnder modulator , 2008 .

[13]  L. Qiu,et al.  Synthesis of novel nonlinear optical chromophore to achieve ultrahigh electro-optic activity. , 2012, Chemical communications.

[14]  Min-Cheol Oh,et al.  Recent advances in electrooptic polymer modulators incorporating highly nonlinear chromophore , 2001 .

[15]  C. C. Teng,et al.  Simple reflection technique for measuring the electro‐optic coefficient of poled polymers , 1990 .

[16]  D. Bradley,et al.  Optical gain at 650 nm from a polymer waveguide with dye-doped cladding , 2005 .

[17]  Guohua Hu,et al.  Crosstalk reduced and low power consumption polymeric thermo-optic switch , 2010 .

[18]  W. Steier,et al.  Conductivity-dependency-free in-plane poling for Mach-Zehnder modulator with highly conductive electro-optic polymer , 2007 .

[19]  J. Leuthold,et al.  Low Power Mach–Zehnder Modulator in Silicon-Organic Hybrid Technology , 2013, IEEE Photonics Technology Letters.

[20]  Wenbo Wu,et al.  New hyperbranched polyaryleneethynylene containing azobenzenechromophore moieties in the main chain: facile synthesis, large optical nonlinearity and high thermal stability , 2010 .

[21]  Xiaolong Wang,et al.  Phase error corrected 4-bit true time delay module using a cascaded 2 x 2 polymer waveguide switch array. , 2007, Applied optics.

[22]  Takaaki Kakitsuka,et al.  All-optical wavelength-routing switch with monolithically integrated filter-free tunable wavelength converters and an AWG. , 2010, Optics express.

[23]  R. Norwood,et al.  Hybrid polymer/sol–gel waveguide modulators with exceptionally large electro–optic coefficients , 2007 .

[24]  A. Jen,et al.  Enhanced thermal stability of electrooptic polymer Modulators using the diels-alder crosslinkable polymer , 2006, IEEE Photonics Technology Letters.

[25]  L. Qiu,et al.  Comparison of nonlinear optical chromophores containing different conjugated electron-bridges: the relationship between molecular structure-properties and macroscopic electro-optic activities of materials , 2014 .

[26]  Lei Xu,et al.  Low consumption power variable optical attenuator with sol-gel derived organic/inorganic hybrid materials. , 2006, Optics express.

[27]  N. Dagli.  Wide-bandwidth lasers and modulators for RF photonics , 1999 .

[28]  L. Qiu,et al.  Donor modification of nonlinear optical chromophores: Synthesis, characterization, and fine-tuning of chromophores' mobility and steric hindrance to achieve ultra large electro-optic coefficients in guest–host electro-optic materials , 2014 .

[29]  Cheng Zhang,et al.  Integration of electro-optic polymer modulators with low-loss fluorinated polymer waveguides. , 2002, Optics letters.

[30]  P Sullivan,et al.  Demonstration of a low V pi L modulator with GHz bandwidth based on electro-optic polymer-clad silicon slot waveguides. , 2010, Optics express.

[31]  A. Pyayt.  Guiding Light in Electro-Optic Polymers , 2011 .

[32]  Siegfried Janz,et al.  Compact and low power thermo-optic switch using folded silicon waveguides. , 2009, Optics express.