Physics-based VCSEL model helps design rack-to-rack optical-links
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The new VCSEL model, available in the Advanced Design System 2013 Transient Convolution Element and SystemVue 2013 AMI Modeling Kit, is used both for modelling optoelectronic components and designing them into equipment.
Laser technologies like VCSELs have pushed down the cost of optoelectronics to the point where optical fibre communication is now replacing traditional copper cabling for spans over about 10 meters in the multi-gigabit regime.
Up to now, simulation tools used to design these nonlinear devices required engineers to learn a whole new optical paradigm. With the new VCSEL model, however, Agilent is leveraging a technique that high-speed digital engineers are already familiar with, the Input/Output Buffer Information Specification (IBIS) AMI flow. Senior Agilent engineers contributed this innovative model to document BIRD-156 of the IBIS Open Forum. BIRD-156 extends the AMI flow to allow both electrical and optical repeater links to be modelled and was incorporated in the recently ratified IBIS version 6.0.
With the VCSEL model, SystemVue 2013 now offers model builders, such as optoelectronic component vendors, a tool that supports the evolution of IBIS and can build rack-to-rack opto link models. The models run in ADS, the tool that opto component consumers (data center and telecoms equipment manufacturers, for example) use to design these subsystems into their larger systems. SystemVue 2013 also now features an enhanced model for the clock/data recovery circuitry found in both optical and electrical retimers.
Visit Agilent at www.agilent.com
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