Coherent Combining at Ultra-low Optical Signal Powers based on Optically Amplified Error Feedback
Paper i proceeding, 2022
Coherent combining in multi-aperture reception for free-space communication applications requires active phase alignment. Here, using 50/50-fiber-couplers and optically preamplified error feedback, coherent combining of four -80dBm, 10Gbaud QPSK signals is demonstrated with 95.4% efficiency.
Författare
Rasmus Larsson
Chalmers, Mikroteknologi och nanovetenskap, Fotonik
Jochen Schröder
Chalmers, Mikroteknologi och nanovetenskap, Fotonik
Magnus Karlsson
Chalmers, Mikroteknologi och nanovetenskap, Fotonik
Peter Andrekson
Chalmers, Mikroteknologi och nanovetenskap, Fotonik
2022 Optical Fiber Communications Conference and Exhibition, OFC 2022 - Proceedings
W2A.31
9781557524669 (ISBN)
2022 Optical Fiber Communications Conference and Exhibition, OFC 2022
San Diego, USA,
San Diego, USA,
Ämneskategorier
Datorteknik
Telekommunikation
Atom- och molekylfysik och optik
Signalbehandling
DOI
10.1364/OFC.2022.W2A.31