7 March 2014 All-Polymer modulator for high frequency low drive voltage applications
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Organic electro-optic material based optical modulators have been fervently pursued over the past two decades. The material properties of organic materials over crystalline electro-optic materials such as LiNbO3 have yielded devices with record low drive voltages and significant promise for high frequency operation that are ideal for implementation in many developing telecommunication technologies. This paper will discuss a TM electro-optic phase modulator based on a recently developed material IKD-1-50. A simple fabrication process that is compatible with wafer scale manufacturability using commercially available cladding materials, spin processing, standard photolithography, and dry etching will be presented. Non-centrosymmetric order is induced in the core material via a thermally enabled poling process that was developed based on work in simple slab waveguide material characterization devices, and optimized for polymer stack waveguide architectures. Basic phase modulators are characterized for half wave voltage and optical loss. In device r33 values are estimated from a combination of measured and simulated values. Additional work will be discussed including amplitude modulation and high frequency applications. The design for a Mach-Zehnder interferometer amplitude modulator that implements a multi mode interference cavity splitter will be presented along with plans for a microstrip transmission line traveling wave modulator.
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David L. K. Eng, David L. K. Eng, Stephen Kozacik, Stephen Kozacik, Shouyuan Shi, Shouyuan Shi, Benjamin C. Olbricht, Benjamin C. Olbricht, Dennis W. Prather, Dennis W. Prather, "All-Polymer modulator for high frequency low drive voltage applications", Proc. SPIE 8983, Organic Photonic Materials and Devices XVI, 898316 (7 March 2014); doi: 10.1117/12.2038201; https://doi.org/10.1117/12.2038201

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