PoS - Proceedings of Science
Volume 370 - Topical Workshop on Electronics for Particle Physics (TWEPP2019) - Optoelectronics and Links
Key Building Block Optimization for High- Performance Transceivers: Multimode Interferometers from Conventional to Sub- Wavelength Regime
Y. Zhang,* M. Schneider, D. Karnick, L. Eisenblätter, T. Kühner, M. Weber
*corresponding author
Full text: pdf
Pre-published on: March 06, 2020
Published on: April 21, 2020
Multimode interferometers (MMIs) are key components for high bandwidth transceivers in
upgrading the data transmission of future detector systems. We present two conventional high-
performance MMIs fabricated on a 250 nm SOI platform with different power splitting ratios
which operate as 50%:50% power splitter for Mach-Zehnder modulators and as 86%:14%
power splitter for loop control in future transceiver designs, respectively. Besides, we present
the novel MMIs based on sub-wavelength gratings. By engineering the refractive index of
relevant parts, more compact 50%:50% MMIs and multi-port, low phase error MMIs become
DOI: https://doi.org/10.22323/1.370.0050
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