Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
The exponential growth of data traffic propelled by cloud computing and artificial intelligence necessitates advanced optical interconnect solutions. While wavelength division multiplexing (WDM) enhances optical module transmission capacity, chromatic dispersion becomes a critical limitation as single-lane rates exceed 200 Gbps. Here we demonstrate a 4-channel silicon transmitter achieving 1 Tbps aggregate data rate through integrated adaptive dispersion compensation. This transmitter utilizes Mach-Zehnder modulators with adjustable input intensity splitting ratios, enabling precise control over the chirp magnitude and sign to counteract specific dispersion. At 1271 nm (-3.99 ps/nm/km), the proposed transmitter enabled 4 × 256 Gbps transmission over 5 km fiber, achieving bit error ratio below both the soft-decision forward-error correction threshold with feed-forward equalization (FFE) alone and the hard-decision forward-error correction threshold when combining FFE with maximum-likelihood sequence detection. Our results highlight a significant leap towards scalable, energy-efficient, and high-capacity optical interconnects, underscoring its potential in future local area network WDM applications.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12234763 | PMC |
| http://dx.doi.org/10.1038/s41467-025-61408-7 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The technique of Radio over Fiber provides breakthroughs for information penetration in the millimeter-wave (mmWave) and terahertz era. The next generation of mobile networks demands dense, high-speed, and energy-efficient wireless systems, driving an urgent need for integrated and miniaturized transmitters. However, constrained by limited power handling capabilities and high radiation losses of on-chip systems, current systems still rely on bulky components and devices to fulfill the desired functions, resulting in high power consumption and increased complexity.
View Article and Find Full Text PDFWe demonstrate an error-free data transmission system without equalization, where both transmitter and receiver are fabricated using complementary metal oxide semiconductor (CMOS) compatible germanium-silicon (GeSi) processes. By utilizing a germanium-based electro absorption modulator (EAM) and a photodetector (PD), experimental results show that the L-band transmission system can achieve error-free transmission of 32 G baud non-return-to-zero (NRZ) signals. This work paves the way for mass production of direct link systems, providing a small size, low cost, and low latency solution for board-to-board communication applications.
View Article and Find Full Text PDFA 4×256 Gbps silicon transmitter with on-chip adaptive dispersion compensation.
Nat Commun
July 2025
State Key Laboratory of Photonics and Communications, School of Information Science and Electronic Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
The exponential growth of data traffic propelled by cloud computing and artificial intelligence necessitates advanced optical interconnect solutions. While wavelength division multiplexing (WDM) enhances optical module transmission capacity, chromatic dispersion becomes a critical limitation as single-lane rates exceed 200 Gbps. Here we demonstrate a 4-channel silicon transmitter achieving 1 Tbps aggregate data rate through integrated adaptive dispersion compensation.
View Article and Find Full Text PDFTerahertz imaging holds great potential for non-destructive material inspection, but practical implementation has been limited by resolution constraints. In this study, we present a single-pixel THz imaging system based on a confocal microscope architecture, utilizing a quantum cascade laser as both transmitter and phase-sensitive receiver. We demonstrate, for the first time to the best of our knowledge, that laser feedback interferometry-based imaging systems achieve enhanced lateral and axial resolution compared to conventional confocal imaging.
View Article and Find Full Text PDFWe present a Brillouin optical time-domain reflectometer (BOTDR) using a silicon photonic integrated transmitter-receiver. This integrated transceiver comprises a Mach-Zehnder modulator (MZM) for transmitting, a dual-quadrature and dual-polarization balanced photodetection unit for coherent receiving, and auxiliary optics including a polarization controller (PC) and an adjustable beam splitter (BS). The integrated transceiver, combined with a discrete light source, an optical amplifier, a filter, a circulator, and electronic devices, forms a BOTDR interrogator.
View Article and Find Full Text PDF