Design of ultra-compact multimode interference (MMI) couplers and high efficiency grating couplers in TriPleX platform as part of a photonic-based sensor

Lefteris Gounaridis; Panos Groumas; Erik Schreuder; Christos Tsokos; Elias Mylonas; Adam Raptakis; Rene Heideman; Hercules Avramopoulos; Christos Kouloumentas

doi:10.1117/12.2510053

4 March 2019 Design of ultra-compact multimode interference (MMI) couplers and high efficiency grating couplers in TriPleX platform as part of a photonic-based sensor

Lefteris Gounaridis, Panos Groumas, Erik Schreuder, Christos Tsokos, Elias Mylonas, Adam Raptakis, Rene Heideman, Hercules Avramopoulos, Christos Kouloumentas

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Proceedings Volume 10921, Integrated Optics: Devices, Materials, and Technologies XXIII; 1092127 (2019) https://doi.org/10.1117/12.2510053
Event: SPIE OPTO, 2019, San Francisco, California, United States

Abstract

We present simulation and characterization results for the design of a two-port grating coupler with achievable coupling efficiency up to 54% together with simulation and characterization results of three different multimode interference (MMI) coupler structures, 1x2, 1x4 and 1x8 with insertion loss and output power imbalance as low as 0.2 dB and 0.05 dB, respectively. Both grating coupler and MMI photonic structures were designed on the TriPleX platform. Finally, we present these structures as part of a novel, photonic, ultrasensitive biosensor.

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Lefteris Gounaridis, Panos Groumas, Erik Schreuder, Christos Tsokos, Elias Mylonas, Adam Raptakis, Rene Heideman, Hercules Avramopoulos, and Christos Kouloumentas "Design of ultra-compact multimode interference (MMI) couplers and high efficiency grating couplers in TriPleX platform as part of a photonic-based sensor", Proc. SPIE 10921, Integrated Optics: Devices, Materials, and Technologies XXIII, 1092127 (4 March 2019); https://doi.org/10.1117/12.2510053

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KEYWORDS

Brain-machine interfaces

Waveguides

Optical design

Refractive index

Photodetectors

Sensors

Biomedical optics

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