VPItoolkit DSP Library

The VPItoolkit^TM DSP Library is a comprehensive collection of lab-proven digital signal processing algorithms specifically designed for the modeling and simulation of high-performance optical transmission systems.

Available as a pluggable toolkit for VPItransmissionMaker^TM Optical Systems and VPIlabExpert^TM, both developed by VPIphotonics, the VPItoolkit^TM DSP Library algorithms provide reliable and scalable performance for demanding optical communication systems. Leveraging the extensive expertise of Fraunhofer HHI, the DSP Library ensures state-of-the-art solutions for optical communication challenges.

Technical Background

With decades of experience in optical communications, Fraunhofer HHI has collaborated with VPIphotonics to ensure the digital signal processing algorithms of the DSPLibrary meet the highest industry standards. These lab-proven algorithms have been rigorously tested under real-world conditions to ensure reliable performance across a wide range of scenarios. The algorithms offer precise modulation and demodulation capabilities and comprehensive correction for disturbances caused by complex optical transmission channels.

Features

• Lab-tested algorithms for coherent optical communication systems
• Support for a wide range of modulation formats such as (DP) BPSK, (DP) QPSK, PS QPSK, (DP) mQAM, probabilistically-shaped QAM, and 4D set partitioning formats
• Functionalities include:
  • I/Q imbalance correction
  • Clock recovery and deskew
  • CD compensation (Chromatic Dispersion)
  • Carrier frequency and phase recovery
  • Polarization demultiplexing
  • PMD compensation (Polarization Mode Dispersion)
  • Digital filtering and nonlinear pre-distortion
  • Kramers-Kronig detection
  • Longitudinal power profile estimation in multi-span fiber links
  • Nonlinear impairment mitigation
  • Perturbation-based end-to-end channel modeling

• Optimization of coherent optical transmission systems
• Development and simulation of modern modulation formats
• Research and validation of optical communication system technologies in the lab
• Simulation and optimization of field trials for real-world networks

Benefits

• Lab-proven algorithms for maximum reliability and performance
• Comprehensive support for modern modulation formats, allowing flexible system adaptations
• Reduced development time through simulation-based optimization
• More efficient system planning and development through precise modeling
• Improved system performance thanks to optimized modulation and processing strategies
• Simplified integration into existing research and development projects through plug-and-play toolkit