Fully tunable and switchable coupler for photonic routing in quantum detection and modulation.

@article{varc2019FullyTA,
title={Fully tunable and switchable coupler for photonic routing in quantum detection and modulation.},
author={Vojtěch {\vS}varc and Martina Nov{\'a}kov{\'a} and Glib Mazin and Miroslav Je{\vz}ek},
journal={Optics letters},
year={2019},
volume={44 23},
pages={
5844-5847
}
}
• Published 20 May 2019
• Physics
• Optics letters
Photonic routing is a key building block of many optical applications challenging its development. We report a $2\times 2$2×2 photonic coupler with a splitting ratio switchable by a low-voltage electronic signal with 10 GHz bandwidth and tens of nanoseconds latency. The coupler can operate at any splitting ratio ranging from 0:100 to 100:0 with the extinction ratio of 26 dB in optical bandwidth of 1.3 THz. We show sub-nanosecond switching between arbitrary coupling regimes including a balanced…
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