• Network Simulation

    • Evaluate crosstalk and dynamics in reconfigurable DWDM networks due to power transients and test countermeasures

    • Validate network design scenarios using link performance analysis functions and the VPIdesignRules application

    • Provide stress-test environment for impairment-aware routing mechanisms

    VPIdesignRules interface allows automatic check of engineering rules

  • System Design

    • Explore several Tbit/s systems using C, L and S band windows

    • Design ultra long-haul amplified systems and submarine systems

    • Design high-capacity WDM systems based on Raman, hybrid amplification or digital coherent technology

    • Quantify fiber-induced signal degradations resulting from CD, Kerr, PMD, SRS, SBS and reflections

    • Dimension FTTx/PON systems including BPON, G(E)PON, WDM-PON, coherent PON and RSOA-based bi-directional PON

    • Design analog and digital CATV, radio-over-fiber, and microwave photonic links

    • Equalize DMD-induced distortions in multimode systems

    • Explore Free-Space Optics (FSO) communication systems

    • Select optical amplification scheme (EDFA, Raman, SOA, OPA) in CWDM /DWDM systems

    Design long haul & high-capacity transmission systems

  • Subsystem & Component Design

    • Design high-performance & cost-effective transceivers for 400G and Terabit Ethernet using coherent detection and digital signal processing (DSP)

    • Develop effective DSP methods for digital adaptive electronic equalization and precompensation

    • Identify critical design parameters including laser chirp, RIN, amplifier gain-tilt and noise, path loss, and filtering

    • Design Interferometric Fiber Optic Gyroscope (iFoG)

    • Define requirements for analog or digital electronics devices (TIA, RF amplifier, clock, ADC, DAC)

    Simulated and measured eye-diagram (43Gb/s DPSK)

  • Technology Benchmark

    • Evaluate new aggregation formats such as optical CDMA and optical SCM-OFDM

    • Compare modulation formats such as dual-polarization and set-partitioning mQAM

    • Investigate benefits of coded modulation

    • Compare the robustness of various modulation formats (PM-QPSK, PM-BPSK, PM-QAM, OFDM, etc.)

    • Test various DSP algorithms and compare them with state-of-the-art algorithms provided with the software

    • Select technologies (CWDM, PON, ROADM, RSOA) and topologies of aggregation and distribution networks

    Compare the robustness of different 16QAM constellations

  • Upgrade Scenarios

    • Investigate the feasibility of upgrading analog HFC networks with digital services

    • Consider distributed Raman amplification (DRA) to increase the capacity of existing systems

    • Investigate the feasibility of adding 100G channels in legacy 10G or 40G systems

    Investigate nonlinear interactions between 100G OFDM channels and legacy 10G channels