Version 9.5 provides new modeling features, improved usability and advances in design process and data analysis compared to the previous versions.
Among the new features are multimode fiber modeling accounting for Kerr nonlinearity, improved analysis and visualization of multimode signals, parameter library of typical multimode fibers, accurate modeling of micro-rings and Fabry-Perot resonances in multi-section optoelectronic devices, a new discretization approach to dramatically speed up calculation of active sections in optoelectronic devices, ENoB calculation in ADC, additional and enhanced DSP algorithms for coherent transmission systems and many more.
The graphical user interface has been enhanced to improve the handling of and navigation through resources and simulation schematics. The capabilities of parameter and user interface scripting using Python have been significantly increased.
Version 9.5 is compatible with version 2.0 of the VPItoolkit DSP Library – a pluggable toolkit to VPItransmissionMaker Optical Systems and VPIlabExpert – providing new functionality such as data-aided frequency domain equalization using for example CAZAC sequences, and means for off-line processing of experimental data.
Photonic Design Environment offering a high level of usability and personalization
New transmitter for polarization-multiplexed optical signals with arbitrary quadrature modulation performing normalization and pre-distortion, analog pulse-shaping and DAC response emulation
New DSP algorithms such as de-skewing and digital back propagation added and the stability of the TDE-MIMO algorithm improved
Estimation of the effective number of bits (ENoB) of an ADC in presence of distortions such as jitter and differential nonlinearities
Enhanced PhotonicsTLM module to support user-defined discretization of device sections by controling fractional delay filters and the maximum number of subsections
New flexible format analyzer to support the automated characterization of the relative intensity noise (RIN) in lasers
New module to deliver differences between two optical or electrical signals within a specified tolerance to automate optimizations and help to manage complex simulations
Lab equipment module Tek_AWG_70002A supports not only sockets to communicate with the device, but also the VXI-11 protocol
Detailed multimode fiber modeling considering not only linear dispersive effects, but also self-phase and inter-/intramodal cross-phase modulation caused by the Kerr nonlinearity
New macro to apply directly typical parameter values of OM1, OM2, OM3, or OM4 fibers according to ISO/IEC 11801
Support of binary Zemax® beam files (.zbf) to describe an optical beam and calculate the coupling coefficients between this beam and a multimode fiber or waveguide
Accurate account for the spectral dependence of the fiber index profile by the fiber mode solver, which can significantly improve Differential Group Delay calculations
Enhanced multimode system-level amplifier model to support the individual definition of wavelength-dependent gain and noise characteristics for different spatial modes
Significantly enhanced support of multimode signal analysis functions in the VPIphotonicsAnalyzer
Investigation of multipath interferences (MPI) in multimode fiber link
Existing demonstrations have been modified and new ones added to illustrate the functionality and applications of the new features and modules. There are over 770 demonstrations available in the products now.