Feedback and Individual Samples [Optical System]

[Damian MarekParticipant]

Question:

I was trying to simulate the feedback methods in OptiSystem. I would like to know more about the Convert from Individual Signals and Convert to Individual Signals components and how individual sampled signals work.

[Damian MarekParticipant]

Answer:

In OptiSystem a signal is generally expressed as a sampled signal, which is passed to a component in one chunk. To perform time domain calculations, like feedback, the sampled signal must be converted to individual samples, which consist only of a single signal value and its corresponding position in time. This allows OptiSystem to propagate the samples through different components at different times. The attached project file Electric_Phase_Locked_Loop.osd is an example of an electrical feedback system.

You can follow the tutorial on this example at:

http://optiwave.com/resources/applications-resources/optical-system-electrical-pll/

Attachments:

1. Electric_Phase_Locked_Loop.zip

[Luis AcevedoParticipant]

you are greedy. 1120 points. leave some for the rest
hahahah

I was kidding

[tessParticipant]

Hi
What about optical fibers ?
Do they support individual samples ?
I have some problems simulating optical fiber in a feedback loop
The fiber doesn’t have any effect on individual samples

[Damian MarekParticipant]

Hi Tess,

Unfortunately the optical fiber models do not support individual samples. Perhaps if you create a new topic and describe the system you would like to model with an article or diagram, I can help you find a way to simulate it.

Regards

[Raja masudParticipant]

Hi Damian Marek,

I have 3 confusion with feedback loop, which i have upload in this link http://optiwave.com/forums/topic/plz-help-me-to-solve-3-questions/. plz help me to clear my 3 confusion.

Thanking you

Raja

[Ajay VyasParticipant]

thanks to you for very important information & point
Sir I design a predistorter using one feedback system as same above you mentioned. I want integrated with radio over link is it possible > I attached the layout of predistorter.
Please check it