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Optiwave software can be used in different industries and applications, including Fiber Optic Communication, Sensing, Pharma/Bio, Military & Satcom, Test & Measurement, Fundamental Research, Solar Panels, Components / Devices, etc..
OptiSystem is a comprehensive software design suite that enables users to plan, test, and simulate optical links in the transmission layer of modern optical networks.
OptiInstrument addresses the needs of researchers, scientists, photonic engineers, professors and students who are working with instruments.
OptiSPICE is the first circuit design software for analysis of integrated circuits including interactions of optical and electronic components. It allows for the design and simulation of opto-electronic circuits at the transistor level, from laser drivers to transimpedance amplifiers, optical interconnects and electronic equalizers.
OptiFDTD is a powerful, highly integrated, and user friendly CAD environment that enables the design and simulation of advanced passive and non-linear photonic components.
OptiBPM is a comprehensive CAD environment used for the design of complex optical waveguides. Perform guiding, coupling, switching, splitting, multiplexing, and demultiplexing of optical signals in photonic devices.
The optimal design of a given optical communication system depends directly on the choice of fiber parameters. OptiFiber uses numerical mode solvers and other models specialized to fibers for calculating dispersion, losses, birefringence, and PMD.
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Optiwave software can be used in different industries and applications, including Fiber Optic Communication, Sensing, Pharma/Bio, Military & Satcom, Test & Measurement, Fundamental Research, Solar Panels, Components / Devices, etc..
OptiSystem is a comprehensive software design suite that enables users to plan, test, and simulate optical links in the transmission layer of modern optical networks.
OptiInstrument addresses the needs of researchers, scientists, photonic engineers, professors and students who are working with instruments.
OptiSPICE is the first circuit design software for analysis of integrated circuits including interactions of optical and electronic components. It allows for the design and simulation of opto-electronic circuits at the transistor level, from laser drivers to transimpedance amplifiers, optical interconnects and electronic equalizers.
OptiFDTD is a powerful, highly integrated, and user friendly CAD environment that enables the design and simulation of advanced passive and non-linear photonic components.
OptiBPM is a comprehensive CAD environment used for the design of complex optical waveguides. Perform guiding, coupling, switching, splitting, multiplexing, and demultiplexing of optical signals in photonic devices.
The optimal design of a given optical communication system depends directly on the choice of fiber parameters. OptiFiber uses numerical mode solvers and other models specialized to fibers for calculating dispersion, losses, birefringence, and PMD.
Emerging as a de facto standard over the last decade, OptiGrating has delivered powerful and user friendly design software for modeling integrated and fiber optic devices that incorporate optical gratings.
Download our 30-day Free Evaluations, lab assignments, and other freeware here.Â
how to draw pure constellation in I-Q modulator. Mine is always so many spots.
Make sure your oscillator (CW Laser ) has a small linewidth. For a perfect system set it to 0, realistically I think nowadays a linewidth of 0.1 MHz is not unreasonable.
Good luck!
Hi Damian,
you mean we should keep 0.1MHz at CW laser?
my schema has CW laser with 0.1MHz. I will add fiber and receiver to my schema.
Phase noise is what causes that wander of the constellation diagram, so using a laser with a smaller line width will eliminate that problem. Try a linewidth of 0 and you will get “perfect” results, although physically it might not be accurate.
Is you constellation after the signal passes in an optical system?
No, just after modulation. I didn’t add amplifier and fiber.
But actually after added fiber(50km), my constellation became to just crowded thing in central. how to fix it?
What kind of modulation are you applying?
I’m trying to apply 16QAM.
after transmitter, connected to amplifier and Gaussian filter then 50km fiber, then amplifier and filter.
After second filter, I checked 16QAM coherent Receiver and Constellation Visulaizer.
but result is like attached.
It should be possible to transmit the signal over 50 km of fiber with low distortion of the constellation. Maybe you have a filter or component that is set to the wrong values. Can you attach your project file?
Hi Damian,
please check attached project. i created 16APSK signal after modulator. But After fiber and amplifier, constellation is very bad. is there any way to keep constellation as possible? what components was wrong ?