1. Laboratory of Quantum Optoelectronics, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
2. Institut d’Electronique Fondamentale,
UMR 8622 CNRS, Université Paris-Saclay, 91405 Orsay cedex, France
3. GLO AB, Ideon Science Park, Scheelevägen 17, S-223 70 Lund, Sweden
4. GLO-USA, 1225 Bordeaux
Drive, Sunnyvale, California 94086, United States