September 15, 2016

A Coplanar-Waveguide-Based Silicon Mach-Zehnder Modulator using a Meandering Optical Waveguide and Alternating-side PN junction loading

  • Dong P.
  • Gui C.
  • Sinsky J.

We demonstrate a silicon Mach-Zehnder modulator with a coplanar waveguide transmission-line electrode structure using a meandering optical waveguide and alternating-side PN junction loading of the electrodes, which helps suppress the signal distortion caused by the parasitic slot-line mode and improves the electro-optical bandwidth. The silicon MZM exhibits a V-pi of 4.5 V with an electro-optic 3-dB bandwidth ~20 GHz for a 5 mm-long phase shifter. This achieved V-pi is among the lowest for silicon-only modulators with a bandwidth of more than 20 GHz.

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August 09, 2017

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5G networks will have to support a set of very diverse and often extreme requirements. Network slicing offers an effective way to unlock the full potential of 5G networks and meet those requirements on a shared network infrastructure. This paper presents a cloud native approach to network slicing. The cloud ...

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Based on the physical model of a bulk reflective semiconductor optical amplifier (RSOA) used as a modulator in radio over fiber (RoF) links, the distributions of carrier density, signal photon density, and amplified spontaneous emission photon density are demonstrated. One of limits in the use of RSOA is the lower ...

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