Integrated segmented IQ-modulator for orthogonal sampling and multi-level high-bandwidth signal generation.
Opt Lett
; 49(8): 2193-2196, 2024 Apr 15.
Article
em En
| MEDLINE
| ID: mdl-38621109
ABSTRACT
Photonic-assisted signal processing of high-bandwidth signals emerges as a solution for challenges encountered in electronic-based processing. Here we present a concept for a compact, photonic-assisted digital-to-analog converter (DAC) and optical IQ-modulator in one single integrated device based on two innovative concepts a segmented Mach-Zehnder modulator and orthogonal sampling. For electrically driving the modulator, only a single radio frequency oscillator and no pulse source or electrical DAC are required. The presented and simulated proof-of-concept device with six segments can generate a multi-level and high-bandwidth signal from low-bandwidth electronic drivers; e.g., we show the generation of a 120â
Gbps data rate, 16-quadrature amplitude modulation (16-QAM, 30â
Gbaud) signal solely based on low-bandwidth (5â
GHz) non-return-to-zero (NRZ) signals. Integrated on a silicon photonic platform, the device provides fixable speed and bandwidth operations, positioning it as a viable solution for diverse communication systems.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Opt Lett
Ano de publicação:
2024
Tipo de documento:
Article