On chip coherent phase and intensity control for atmospheric turbulence mitigation with multi-plane light conversion

Antonin Billaud; Fausto Gomez Agis; Kassem Saab; Matthieu Meunier; David Allioux; Olivier Pinel; Guillaume Labroille

doi:10.1117/12.2611380

1 April 2022 On chip coherent phase and intensity control for atmospheric turbulence mitigation with multi-plane light conversion

Antonin Billaud, Fausto Gomez Agis, Kassem Saab, Matthieu Meunier, David Allioux, Olivier Pinel, Guillaume Labroille

Author Affiliations +

Proceedings Volume PC11993, Free-Space Laser Communications XXXIV; PC1199303 (2022) https://doi.org/10.1117/12.2611380
Event: SPIE LASE, 2022, San Francisco, California, United States

Abstract

We demonstrate coherent on-chip combining for atmospheric turbulence mitigation using Multi-Plane Light Conversion (MPLC). A Niobate Lithium (LiNbO3) photonic integrated chip (PIC) was manufactured to optically combine via balancing and rephasing of 8 disturbed signals collected and demultiplexed by an MPLC. Cascaded on-chip Mach-Zehnders interferometers containing controllable phase shifters allow combining of optical inputs two at a time. Optical leaks are used as feedback loops. After 3 stages, all signals are coherently combined into a main output. We present efficiency, bandwidth, and compatibility with telecom operation of the PIC recombination.

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Citation Download Citation

Antonin Billaud, Fausto Gomez Agis, Kassem Saab, Matthieu Meunier, David Allioux, Olivier Pinel, and Guillaume Labroille "On chip coherent phase and intensity control for atmospheric turbulence mitigation with multi-plane light conversion", Proc. SPIE PC11993, Free-Space Laser Communications XXXIV, PC1199303 (1 April 2022); https://doi.org/10.1117/12.2611380

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