Low-loss high-speed plasmonic optical modulator based on adiabatic waveguides

Farzad Mokhtari-Koushyar; Elham Heidari; Hamed Dalir; Iman Zand; Shuai Sun; Volker J. Sorger; Ray T. Chen

doi:10.1117/12.2287034

23 April 2018 Low-loss high-speed plasmonic optical modulator based on adiabatic waveguides

Farzad Mokhtari-Koushyar, Elham Heidari, Hamed Dalir, Iman Zand, Shuai Sun, Volker J. Sorger, Ray T. Chen

Proceedings Volume 10538, Optical Interconnects XVIII; 105381A (2018) https://doi.org/10.1117/12.2287034
Event: SPIE OPTO, 2018, San Francisco, California, United States

Abstract

Here we proposed three adiabatically coupled waveguides (ACW), while the outer waveguides perform as a two-mode system analogous to ground- and excited- states and the middle waveguide is same as dark-state in a three-level-atomic system. Thanks to the dark-state, intermediate waveguide is based on plasmonic Indium thin oxide (ITO) as an active structure. Our simulation indicates a power consumption of 40 atto-joule with 50 dB modulation depth. In addition, our ACW plasmonic modulator provides high-speed operation as high as 5.4 THz and insertion loss as low as 0.45 dB. The proposed device is crucial for futuristic of optical short-reach interconnects.

Citation Download Citation

Farzad Mokhtari-Koushyar, Elham Heidari, Hamed Dalir, Iman Zand, Shuai Sun, Volker J. Sorger, and Ray T. Chen "Low-loss high-speed plasmonic optical modulator based on adiabatic waveguides", Proc. SPIE 10538, Optical Interconnects XVIII, 105381A (23 April 2018); https://doi.org/10.1117/12.2287034

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