4.6 Article

Laser to laser power conversion with remote signaling

期刊

OPTICS EXPRESS
卷 29, 期 11, 页码 16611-16618

出版社

Optica Publishing Group
DOI: 10.1364/OE.423338

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  1. Science Foundation Ireland [12/RC/2276_P2, 19/US-C2C/3579]
  2. Science Foundation Ireland (SFI) [12/RC/2276_P2] Funding Source: Science Foundation Ireland (SFI)

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The study demonstrates laser power conversion using an edge-coupled waveguide configuration, achieving high power conversion efficiency. This technology can be applied to power conversion from fiber to devices and enable power-free data transmission, opening new possibilities for medical interventions and remote photonics applications.
We demonstrate laser power conversion using an edge-coupled waveguide configuration. A laser with an emission energy of 0.87 eV (1427 nm) optically pumps a second with an emission energy of 0.80 eV (1540 nm), achieving the maximum possible open circuit voltage of 0.83 V due to optically pumped lasing. A fiber to device power conversion efficiency of 33% is achieved with internal power conversion efficiency ranging from 57% to 51%. The voltage at maximum power is 0.6 V, which is a record for the wavelength range. The same optically pumped device is used for effectively power-free 500 Mbps upstream data transmission, enabling compact powering and signaling for emerging applications in minimally invasive medical interventions and remote photonics. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

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