[ZULKARNAINParticipant]

thank you for sharing this info.
it is very helpful.
with regatds

[ZULKARNAINParticipant]

hi burhan mina llah and greetings for all..
well i think you can ask any question on this forum related to the categories which are given on the forum like general,Knowledge etc. irrespective of the profession whether you are engineers or some other profession. But i think the questions should be related to this field only as i don’t think that a biotechnology student would need any information related to optiwave.
with regards

[ZULKARNAINParticipant]

hi atul sharma..
1st one is the Global data rate and second is the PRBS generator data rate.The data transfer rate is given by the PRBS generated data rate.These two bit rates are different due to implementation of different multiplexing and modulating schemes as well as the signal coding.So the data rate of the system should be always graeter than data rate of the bit sequence.
with regards

[ZULKARNAINParticipant]

hi aasif bashir dar…
you have to keep the data rate equal to 40gbps or graeter than that as the data rate of the layout should be graeter than pbrs data rate.
hope you got my view point.
with regards

[ZULKARNAINParticipant]

HI AASIF BASHIR DAR…
WELL AS FAR AS I GOT YOUR QUESTION YOU ARE TALKING ABOUT GLOBAL DATE RATE OF YOUR SYSTEM AND THE BIT RATE OF DATA GENERATED BY THE INFORMATION SOURCE.These two bit rates are different due to implementation of different multiplexing and modulating schemes as well as the signal coding.So the data rate of the system should be always graeter than data rate of the bit sequence.
You are right in saying that it is not possible to sweep or iterate the layout data rate as this option is unavailable in optisystem.hence we go for the sweep or iteration in the of data rate in PBRS.
with regards

[ZULKARNAINParticipant]

hi jyoti raina…
as clear from the screen shot it is clear that you are getting signal only in the lower region that means the filter is only passing that much band and i think increasing power will not help you in this. Also you have not mentioned the type of filter your are using in your design and i think the filetr you have used has aa very narrow passband. so you sholud try to use a filter with a wider passband.
with regards

[ZULKARNAINParticipant]

hi jyoti raina..
I think it is necessary to enable dispersion and attenuation parameters in the optic fiber cable because if you will not enable these parameters fiber acts as ideal one not realistic and i think we should take these parameters into consideration as otherwise it will become an unrealistiv design.So for better results you can change other parameters or take values of these parameters according to application to optimize the results.
with regards

[ZULKARNAINParticipant]

hi diman kakati…
thanks and regards fro replying to my query.
you mentioned that the power of the optical signal should not be more than 6 dBm for in line (i.e. fiber) transmission in practical case though in simulation platform we use 10 dBm as launch power in many of the cases.will you please send me the link of this topic so that i can look into this.i will definietly try to implement this in my design.
with regards

[ZULKARNAINParticipant]

hi sahil singh..
i also agree with you and all other forum masters that the gain decides efficiency but yes in practical systems gain needs to be of optimum level because non linearities would come into existance….
Thanks & Regards

[ZULKARNAINParticipant]

hi sahil singh…
very much thanks for replying to my query…
i also agree with you also that if we tend to increase the data rate there are other repercussions in form of degradation of other parameters.Also tradeoff between various parameters must be understood for the system design to be effective.
with regards

[ZULKARNAINParticipant]

HI ATUL SHARMA..
thanks and greetings for responding to my query..
yes it is true that there is always trade off between various parameters and we have to choose optimum values for various parameters so that we get optimum results.that is we can can not incraese the gain too high because of that degradation will occur.
with regards

[ZULKARNAINParticipant]

hi umer syed…
well in my project i was trying to vary the bit rate to see the effect on the eye diagram,but it got worse with increasing bit rate.also the quality factor is very low.now i think i will change the power as well as reduce the length of the fiber to see the effect of these parameters.i hope that with increase in power and for shorter distances the eye diagram should improve.
i hope you will supervise me in this project for the study of various other parameters as i am new to optiwave.
with regards.

[ZULKARNAINParticipant]

hi umer syed…
thank you for showing concern for my query.
well i not able to understand your point about the gap.could you please elaborate over this.
Actually i am unable to get the gap between marks and spaces in the eye diagram. Hope you got my point.
with regards

[ZULKARNAINParticipant]

hi umer syed..
you are welcome
with regards

[ZULKARNAINParticipant]

you can also use an optical circulator that can be used to separate optical signals that travel in opposite directions in an optical fiber, analogous to the operation of an electronic circulator. So circulators can be used to achieve bi-directional transmission over a single fiber.
For your reference i am attaching a link in which circulator was discussed by me and few other mentors.Hope you will get some help from this.
http://staging.optiwave.com/forums/topic/circulator-3/
with regards