- This topic has 7 replies, 3 voices, and was last updated 10 years, 6 months ago by .
Viewing 7 reply threads
Viewing 7 reply threads
- You must be logged in to reply to this topic.
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..
Download our 30-day Free Evaluations, lab assignments, and other freeware here.
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..
Download our 30-day Free Evaluations, lab assignments, and other freeware here.
Dear all,
attached pic is actually 16APSK, but it looks very bad cause of Dispersion effect. How can I fix this? is there any better way?
Hi Boldoo,
I simulated your project again with the fibers and amplifiers off and the constellation came out properly. Although I don’t think it is a traditional 16-PSK constellation it still looks good.
The fibers and amplifiers are the agents which cause the distortion here. Try a DCF to get a better result.
Regards
I have a question about 2dB power level sent through 16km fiber to receiver: did you consider the sensitivity limits of your detector?
first amplifier is 0db. second amplifier is 2dB through 16km fiber. you mean it is too low?
how to set sensitivity limits?
Amplifier 2 db is too low. it should more than 10dB, right? what does it mean Power parameter of Receiver?
Not exactly. I’m suggesting you to consider the level of overload signal for your receiver. The matter is that all receivers, in general, are working in dynamic range -15-25dB and if your input power will be bigger than higher limit, your receiver will become saturated which will bring you nonlinear distortion and information quality will degrade.
Levels of 0dB and 2dB accordingly are used, in general, for fiber spans with length of 80-160km which gives power level at the receiver within the dynamic range…
For better explanation I can refer you book “Fiber optic communication” G. Agarwal…
Notifications