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17³Ô¹Ï OptSim for Radio-over-Fiber (RoF) in Aerospace and Defense Applications
17³Ô¹Ï OptSim is a unique fiber-optic system simulator in the market coming with a time-domain split-step (TDSS) simulation engine in addition to the more common frequency-domain split-step (FDSS) simulation engine. Since the TDSS and linear convolution require no assumptions on periodicity of the signal(s) and simulation window, unlike in FDSS-only tools, 17³Ô¹Ï OptSim users don¡¯t need to resort to any artificial restrictions on maintaining periodicity between multiple RF tones and optical frequencies. It is this ease of mixing RF and optical signals that makes 17³Ô¹Ï OptSim an ideal solution for designing and simulating civilian and aerospace & defense RF-over-Fiber applications.
Intermodulation Distortion in RF-over-Fiber Link: Schematic in 17³Ô¹Ï OptSim (top) and intercept points (bottom).
Benefits
- Makes no assumptions on periodicity of signals and noise, thereby providing ease of mixing RF and optical signals without aliasing
- Models impact of nonlinearities, noise, jitter, crosstalk, harmonics, and complex interplay of impairments
- Comes pre-supplied with rich libraries of electrical, RF modulators, demodulators and optical model templates
- Delivers powerful options for design setup, Monte Carlo analyses, data visualization, plotting and management of project resources
Applications
- Analog photonic RF-over-Fiber systems, Microwave Photonics
- System sensitivity, linearity, dynamic range, noise-figure (NF) and inter-modulation distortion (IMD)
- Spurious-free dynamic range (SFDR), Composite second order (CSO), Composite triple beat (CTB)
- Carrier-to-noise ratio (CNR), Input intercept point (IIP), Output intercept point (OIP), 1-dB compression point
- Advanced RF and optical modulation formats
- Analog and digital fiber-optic cable TV (CATV)
- Free-space optical systems
Application Gallery
Transmitter Architecture for Eliminating Third-Order Intermodulation Distortion (IMD3) in Radio-over-Fiber Microwave Photonic Systems
Tool Used: OptSim
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Receiver Sensitivity Comparison of NRZ and DPSK Transmission over a Free-Space Optical Channel
Tools Used: OptSim
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