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VPItransmissionMaker™ Optical Systems

��• Design optical transmission systems and

compare upgrade strategies• Evaluate impact of real-world equipment and

new component ideas on systems design• Analyze for performance metrics such as

OSNR, Q, BER, EOP, EVM, IP3, SFDR • Perform optical crosstalk analysis and

investigate the impact of network transients• Compensate transmission impairments using

optical or electronic techniques

VPItransmissionMaker™ Optical Systems accelerates the design of new photonic systems from short-range via access and metro to long-haul optical transmission systems and allows technology upgrade and component substitution strategies to be developed for existing network plants. It can fully verify link designs to identify cost savings, investigate novel technologies, and fulfill specialist requirements.

The combination of a powerful graphical user interface, a sophisticated and robust simulation scheduler together with advanced models and flexible optical signal representations enables an efficient simulation of any transmission system including bidirectional links and complex networks. Sampled signals modeling supports accurate and detailed simulation needs. Parameterized signals, Noise Bins and Distortions enable efficient modeling of complex systems by allowing the tracking, visualization and analysis of signal properties along a link.

�� VPItransmissionMaker™ Optical Systems is widely used as an R&D tool to evaluate novel component and subsystems designs in a systems context, and investigate, compare and optimize diverse systems technologies (such as coding, modulation, monitoring, compensation, regeneration). As part of VPIphotonics’ award winning suite for Photonic Design Automation solutions, it supports behavioral and detailed physical modeling of subsystems and components.

VPIcomponentMaker™ Optical Amplifiers designs of fiber-based amplifiers and high-power lasers, and active/passive photonic integrated circuit applications created using VPIcomponentMaker™ Photonic Circuits can be included and simulated together with VPItransmissionMaker™ Optical Systems.

VPItransmissionMaker™ Optical Systems supports the design, analysis and optimization of almost every system concept.• PON techniques, FTTx distribution • Aggregation and metro networks• Core and transoceanic WDM systems • High capacity / high-speed systems• ROADMs and optical networking• Short-range connections, free-space links• Analog & digital video distribution services • RF-over-Fiber, Microwave photonics• Modulation and detection techniques• Mitigation of CD, PMD, phase noise, IMD• Power transients and network dynamics

• Assess the performance of components in a virtual systems test bed and derive component specifications from that

• Explore the potential of space division multiplexing (SDM)

• Quantify fiber-induced signal degradation from CD, Kerr, PMD, SRS, SBS, reflections

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

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

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

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

• Develop antenna-remoting and radar systems, using mm-wave signal generation, up conversion, beam-forming and mixing

• Evaluate schemes for RF-over-Fiber systems carrying wireless formats such as WiFi, WiMax, UMTS, CDMA, LTE

• Investigate transmitter performance needs, including electrical bandwidth, laser clipping, memory effects, and external modulation schemes

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• Design high-capacity WDM systems including novel modulation schemes, CD and PMD compensation, Raman amplification, optical/electrical signal processing, optical channel monitoring and power flattening

• Develop high-performance & cost-effective solutions for 100 Gb Ethernet using coherent detection with high-speed electronics

• Perform quick WDM system design evaluation using link performance analysis functions and engineering design rules

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

• Compare advantages of diverse modulation formats such as, (PM)/(PS)-QPSK, (C)mQAM, OFDM, (RZ-)DQPSK, PSBT, PAM

• Explore terabits per second systems using C-, L- and S-band windows and alternative amplification techniques

• Design effective methods for adaptive electronic equalization (DFE, MLSE, DSP after coherent detection), pre-compensation (EDC)

• Develop and upgrade ultra long-haul terrestrial and submarine systems using bandwidth efficient and robust transmission techniques

Transmitters

Modulation Formats TX Performance

DATA IN

CD & Loss Compensation

ROADMs Cross-Connects

CWDMLong Haul

Ring & Mesh EDFA/Raman

Local Access

Receivers

MultiplexerPerformance

DCM & Amplifier Placement

Filter Performance Tuning Range

Control Circuits

Noise Accumulation Kerr+CD+PMD

Partial Regeneration Raman Amplification

Xtalk, Noise, Switching time

OXC

Multi-band/-stage, Bidirectional, Hybrid, Transients & Control

OADM Evaluation Optical Crosstalk

Protect. Switching Perform. Monitoring

FTTx, PON, HFC Distribution

DeMuxPerformance

Receiver OptimizationClock & Data Recovery Electronic DSP

DATA OUT

SMF

Mod.Laser

DCF

Drop Add

RamanPump

Clock

OADM

Transmux

(design Lasers & Photonic Integrated Circuits with VPIcomponentMaker™Photonic Circuits) (for Optical Signal Processing use

VPIcomponentMaker™Photonic Circuits)

(internal amplfier designs with VPIcomponentMaker™Optical Amplifiers)

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*++�,�$��*�-�$��$��%Besides the design of new 100 Gbps equipment, the complex interactions between legacy and new high data-rate channels need to be fully characterized when upgrading systems. The extensive library includes modules for all key technologies to design such systems (polarization multiplexing, coherent detection, multilevel modulation with arbitrary constellation, OFDM, DSP). Realistic opto-electronic equipment modeling helps to characterize system impairments due to component limitations. Using the industry’s most advanced fiber model, one can investigate complex nonlinear interactions such as cross-polarization modulation (XpolM) and cross-phase modulation (XPM) in mixed bit-rate systems.

��"�$��'%�� Libraries of ready-to-use building blocks in VPItransmissionMaker™ Optical Systems enable to explore new prospects offered by high-speed electronics such as the adaptive equalization of binary (FFE/DFE, MLSE) or multilevel signals using coherent detection, ADC and DSP algorithms such as TDE & FDE, BP, CMA-MIMO, MSPE, LMS/RLS adaptation, etc. Further on, the generation, detection, and equalization of multi-carrier signals including OFDM are supported. Advanced models account for realistic limitations of opto-electrical components such as temperature dependence, PDL, bandwidth limitation and saturation.

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-��.�$�� VPItransmissionMaker™ Optical Systems supports the design of WDM systems with arbitrary data rates and transmission distances. The impact of critical propagation effects such as filtering, chromatic dispersion, nonlinearities, and PMD can be investigated individually or jointly. The Universal Fiber model accounts for all-order PMD and the polarization dependence of Raman and Kerr. It also supports the analysis of bidirectional signal transmission including Raman, Brillouin and Rayleigh scattering. Dedicated models (for multimode fiber, free space channel) enable the design of short reach systems.

��%� �� VPItransmissionMaker™ Optical Systems is used extensively to develop and compare optical modulation formats. Flexible modulator models, including multiport MZ interferometer, file based EA modulator and phase / amplitude modulators, together with a range of ready-to-use transmitters and receivers (Duobinary, CRZ, RZ-D(Q)PSK, PM/PS-QPSK, (C)mQAM, OFDM, PSBT) as well as application demonstrations speed-up the creative process. The extensive module library enables the design of new modulation formats based on technologies such as coherent detection, polarization multiplexing and optical CDMA.

��"��$�� Unique signal representations in conjunction with flexible fiber modeling allow you to take complex nonlinear interactions between hundreds of WDM channels into account. Users may test robust modulation formats and advanced amplification schemes to achieve flat power profiles and high OSNR for transmission over thousands of kilometers. Channel performance metrics can be tracked and used in combination with the VPIdesignRules interface for quick and high-level system analysis and validation.

-�� Dynamic SOA, Raman & doped-fiber amplifier models support the investigation of transient effects resulting from dynamic traffic changes in metro-networks, or burst-operation in access networks. The dedicated Transient Analysis interface enables to determine the steady-state of complex networks and to investigate their dynamic responses to a series of events (lambda-switching, cable brake). Scenarios can be simulated at different time scales (from bit-level to milliseconds) allowing an extensive comparison of different amplifier control schemes and an accurate estimation of dynamic system performances.

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#$ ��%�&��&�� Hundreds of possible technologies (CWDM, PON, ROADM, RSOA, injection-locked Fabry-Perot laser diodes) and topologies (ring, mesh, branching) of aggregation and distribution networks can be evaluated using VPItransmissionMaker™ Optical Systems. FTTx applications are rapidly evolving encompassing a variety of PON approaches sometimes combined with video overlay. The development of these systems requires modeling whole networks including optical CDMA, OFDM subcarrier processing, WDM devices such as AWGs and FBGs, SOA operation in burst mode, transient laser and receiver effects, and bidirectional fiber propagation.

'(��$�� )� ��VPItransmissionMaker™ Optical Systems supports the virtual characterization of passive and active equipment behavior in realistic system environments. Detailed physical models represent components based on (internal) material and structural parameters. Black-Box and Data-Sheet models are based on the physics of the device with parameters that can be derived from external measurements and data-sheets. The different abstraction levels of equipment modeling help to support the specific design needs of component and system manufacturers.

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�� The rapid deployment of fiber optic technology in traditional HFC CATV systems is transforming cable broadcast systems into complex telecommunication networks. Mixed analog and digital programming and data transport is commonplace. Additionally, DWDM and CWDM technologies multiply fiber capacity throughout the network including applications such as node splitting. The user can perform thorough investigations of limitations, such as laser clipping, loss, modulation methods, distortions, chromatic dispersion, Brillouin and Rayleigh scattering from an analog or digital perspective.

�� !�" ��"��Microwave photonics offers many possibilities for photonic signal processing, format-independent signal transmission, avionics, wireless antenna remoting, radar signal processing and countermeasures, array-antenna beamforming, and broadband EM-field monitoring. Designs can be rapidly evaluated for their noise, distortion and frequency response characteristics. Trade-offs in optical microwave signal processing designs can be examined, such as the effect of laser linewidth on the performance of notch filters using optical interferometers and Bragg gratings.

�� Email [email protected] www.VPIphotonics.com

Phone +49 30 398 058 0Fax +49 30 398 058 58

© Copyright VPIphotonics

VPIphotonics is a company of the SaM Solutions group.VPIphotonics reserves the right to change and update product specifications at any time.All trademarks are the property of their respective owners.Protected by U.S. Patents 7451069, 7233962 & 6771873.

Document Part Number: TC0-DS01-06 13051

EMEA & APACVPIphotonics GmbHCarnotstr. 610587 BerlinGermany

AmericasVPIphotonics, Inc.4 Evergreen CircleNorwood, MA 02062USA

��VPItransmissionMaker™ Optical Systems provides an unrivaled range of photonic, electronic and supplementary modules supporting almost every system concept.

Interactive Simulations, Design Assistants and Macros, simulation scripting, data import with automatic file format conversion and cosimulation using standard programming languages streamline and capture design processes.

Over 400 design templates and application demonstrations are provided with every product release. Additional free updates are available at the VPIphotonics Users Forum.

VPItransmissionMaker™ Optical Systems comes with an extensive set of documentation describing product usage, listing application examples, and providing detailed reference guidelines to the scope, parameters and modeling of each individual simulation module.

��Training courses are conducted on site, or at VPIphotonics‘ locations in USA and Germany. A training manual and certificate of completion is awarded to all successful participants. Courses can be tailored to meet individual demands.

Additionally, VPIphotonics offers customized modeling and design services in various fields of photonics and optical communications.Please contact us and tell us about your design problems and project requirements. Our experts will get back to you.