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High-speed plasmonic electro optical modulator in a single metal layer


Plasmonics provides a possible route to overcome both the speed limitations of electronics and the critical dimensions of photonics. We present an all-plasmonic  electro-optical modulator (116–gigabits per second) in which all the elements—the vertical grating couplers, splitters, polarization rotators, and active section with phase shifters—are included in a single metal layer. The device can be realized on any smooth substrate surface and operates with low energy consumption. Our results show that plasmonics is indeed a viable path to an ultracompact, highest-speed, and low-cost technology that might find many applications in a wide range of fields of sensing and communications because it is compatible with and can be placed on a wide variety of materials.

Related product

Plasmonic Mach-Zehnder Modulator 110 GHz C-Band


  • C-band operation
  • 3 dB electro-optical bandwidth >110 GHz
  • Lumped, low-capacitance RF design
  • Compact form factor

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