In an era defined by exponential growth in data traffic, emerging photonic technologies, and the convergence of optical communications with sensing and quantum applications, the ability to accurately model, simulate, and optimize complex optical systems before physical prototyping has become essential. Optiwave OptiSystem v23, released in November 2025, represents the latest advancement in a comprehensive optical system design platform trusted by researchers, engineers, and educators worldwide

This major update expands simulation capabilities across fiber optic communications, free-space optics, LiDAR, distributed sensing, and machine learning-assisted design, empowering users to accelerate innovation in next-generation photonic systems.

OptiSystem is a powerful, integrated software suite designed for planning, testing, and simulating optical links in the transmission layer of modern optical networks

. Unlike generic simulation tools, OptiSystem is purpose-built for photonics, combining a rich library of optical components, advanced numerical solvers, and an intuitive graphical interface within a single environment. The software supports the complete design workflow: from component-level modeling and system architecture definition through performance analysis, optimization, and results visualization.

Since its introduction, OptiSystem has become a de facto standard in academia and industry for designing wavelength-division multiplexing (WDM) systems, coherent transceivers, optical amplifiers, fiber sensors, and emerging applications such as quantum key distribution and optical wireless communications. Version 23.0 continues this legacy with significant enhancements that address the evolving needs of modern photonic engineering

OptiSystem v23 introduces ten new components that significantly broaden the scope of simulatable systems

. The Universal Phi-OTDR Sensor enables modeling of Rayleigh-based distributed acoustic sensing for pipeline monitoring, perimeter security, and structural health applications. The LiDAR Signal Processor and Target components support design and analysis of time-of-flight, phase-shift, and frequency-modulated continuous-wave (FMCW) LiDAR systems critical for autonomous vehicles and remote sensing.

For free-space optical communications, the new UAV Channel component simulates atmospheric propagation between ground stations and unmanned aerial vehicles, accounting for scintillation, beam wander, and weather-induced impairments

. The Digital Pre-Emphasis (DPE) Filter compensates for bandwidth limitations in high-speed electrical and optical links, improving signal integrity in advanced transceiver designs. Additionally, Optical and Electrical Random Number Generators support stochastic modeling for security applications and Monte Carlo analysis.

Building on previous versions, OptiSystem v23 expands its Machine Learning Tool with new algorithms for single-parameter and multi-parameter training workflows

. Users can now train models to predict system performance metrics, optimize design parameters, or classify signal conditions directly within the simulation environment. The tool also supports multilevel eye-diagram analysis, enabling data-driven optimization of high-order modulation formats such as PAM4 and PAM8.

Version 23.0 adds native support for PAM4 and PAM8 modulation formats with statistical bit error rate (BER) and symbol error rate (SER) analysis capabilities

. This enhancement is critical for designing next-generation data center interconnects and short-reach optical links where higher spectral efficiency is required. The software also accelerates free-space optics calculations and improves optical S-parameter performance for more accurate photonic integrated circuit (PIC) characterization.

OptiSystem v23 integrates with Python 3.12, enabling users to leverage the extensive scientific computing ecosystem for custom analysis, automation, and machine learning workflows

. User-defined libraries can be imported directly, facilitating collaboration between optical engineers and data scientists. The main layout interface and software development kit (SDK) have been refined with global parameter synchronization and enhanced noise-iteration control, improving model management and simulation reproducibility.

To accelerate onboarding and knowledge sharing, the example library has been updated with practical templates for LiDAR systems, Phi-OTDR sensors, PAM4/PAM8 transceivers, and random number generation applications

. These examples demonstrate best practices for component configuration, parameter selection, and result interpretation, helping users quickly adapt OptiSystem to their specific projects.

OptiSystem v23 runs on 64-bit Windows 11 and Windows Server 2022 platforms

. Recommended hardware includes a multi-core processor, 16 GB or more of RAM, and a dedicated graphics card for optimal visualization performance. The software supports both standalone and network licensing models, with academic programs available for universities and research institutions.

Optiwave offers flexible licensing options, including perpetual licenses with maintenance plans, subscription-based access, and evaluation versions for qualified users. All licenses include access to technical documentation, video tutorials, example projects, and community support forums. A 30-day free evaluation is available to assess capabilities before commitment