Digital Inverse Multiplexing for Transmitters With Symbol Rates Over DAC Bandwidth Limit

A Kawai, M Nakamura, T Kobayashi… - Journal of Lightwave …, 2024 - opg.optica.org
Broadband signal generation technology plays a pivotal role in increasing the data rate of
optical transceivers. To overcome the bandwidth limitation of digital-to-analog converters …

Enhancing the bandwidth of DACs by analog bandwidth interleaving

C Schmidt, C Kottke, V Jungnickel… - … Coverage in Germany; …, 2016 - ieeexplore.ieee.org
The rising demand for high-speed data transmission systems requires the upgrade of
existing fiber-optic transport networks. A key component of nowadays fiber optics links are …

Digital preemphasis in optical communication systems: On the DAC requirements for terabit transmission applications

D Rafique, A Napoli, S Calabro… - Journal of Lightwave …, 2014 - opg.optica.org
Next-generation coherent optical systems are geared to employ high-speed digital-to-
analog converters (DAC), allowing for digital preprocessing of the signal and flexible optical …

Ultra-Wideband Digital-to-Analog Conversion Technologies for Tbit/s channel transmission

H Yamazaki, M Nagatani, F Hamaoka… - 2017 European …, 2017 - ieeexplore.ieee.org
We review technologies to extend the analog bandwidth of electronic digital-to-analog
converters (DACs) using an analog multiplexer for advanced optical transmission systems …

High-speed digital-to-analog converter concepts

C Schmidt, C Kottke, V Jungnickel… - … , Sub-Systems, and …, 2017 - spiedigitallibrary.org
In today's fiber-optic communication systems, the bandwidth of the photonic components, ie
modulators and photo diodes, is way greater than that of their electrical counterparts, ie …

Low-resolution digital pre-compensation for high-speed optical links based on dynamic digital-to-analog conversion

Y Yoffe, E Wohlgemuth, D Sadot - Journal of Lightwave …, 2018 - ieeexplore.ieee.org
Digital precompensation (DPC) is considered a promising technique for high-throughput
optical communication systems. The digital signal processing (DSP) at the transmitter relies …

Fast DAC solutions for future high symbol rate systems

X Chen, S Chandrasekhar… - 2017 Optical Fiber …, 2017 - ieeexplore.ieee.org
We review electronic digital-to-analog converter (DAC) technologies with sampling rates
beyond 200 GSa/s and analog electrical bandwidths of 100 GHz using digital bandwidth …

Ultra-high-speed optical transmission using digital-preprocessed analog-multiplexed DAC

H Yamazaki, M Nagatani, F Hamaoka, K Horikoshi… - Optics …, 2018 - Elsevier
In advanced fiber transmission systems with digital signal processors (DSPs), analog
bandwidths of digital-to-analog converters (DACs), which interface the DSPs and optics, are …

Digital inverse multiplexing-based pre-distortion for analog multiplexed broadband transmitter

A Kawai, M Nakamura, T Kobayashi… - 49th European …, 2023 - ieeexplore.ieee.org
We proposed a method of digital pre-distortion scheme for transmitters with electrically
analogmultiplexed digital-to-analog converters (DACs), based on a digital inverse …

Digital-to-analog converters for high-speed optical communications using frequency interleaving: Impairments and characteristics

C Schmidt, C Kottke, R Freund, F Gerfers… - Optics express, 2018 - opg.optica.org
Digital-to-analog converters (DACs) for high-speed optical communication systems based
on CMOS technology have bandwidths lower than nowadays electro-optic components. A …