[LALIT VERMAParticipant]

Sorry plz study higher the bit rate as higher the sequence length.

[LALIT VERMAParticipant]

Sequence length is an important factor for determining the global parameters,Time window,number of samples,sample rate,higher the bit rate higher is time window,i.e BER analyzer will have a larger time window ,also optical to electrical conversion the higher wavelengths optical signals can be well adjusted and thus reduced BER.

[LALIT VERMAParticipant]

Hi Alyan
u are right but Arpita is using LASER which is going to give better results as compared to an In coherent optical source .PIIN noise would make the system more MAI by using Incoherent source the BER Achieve in previous results will also degrade.
Although she will get results for MDW code using De Mux as splicer.

Thanks
with regards.

[LALIT VERMAParticipant]

As u r having three user in SAC OCDMA SPD scheme the bit rate in fiber is going to become 622e006 multiplied by 3. so for three user sample rate should be atleast twice of nit rate that is bandwidth of system 1.866e009 multiplied by 2 so 3.7e009 at least than look at the simulation.

[LALIT VERMAParticipant]

Sir Was looking specifically for modified AND technique.,ca u please look at that.

[LALIT VERMAParticipant]

Why u r not using FBG or optical filter in receiver side,becoz u can get optimum filtering using that.as spectral source slicing is more suitable for wdm.

[LALIT VERMAParticipant]

What type of SAC ocdma u want to implement and what is ur base paper on which u are working b coz sac ocdma is implemented in many ways.

[LALIT VERMAParticipant]

Sir, in some tutorials GVD DAT file is being mentioned how to obtain it.

Thanks and regards.

[LALIT VERMAParticipant]

Is there any relation between sequence length and the o/p power of the LED source for getting a good BER.

[LALIT VERMAParticipant]

Thanks alitsu for ur response but iam not able to open the file i am having optisystem 13.but not being loaded.

with regards .

[LALIT VERMAParticipant]

Alitsu gud evening i changed the random seed to 0 and also increased the sequence length but iwas not able to get result.

Thanks and regards.

[LALIT VERMAParticipant]

Thanks alitsu for ur support i will look in to this using this suggestions.

regards.

[LALIT VERMAParticipant]

if you remove the third order dispersion in fiber characteristics then also the time will be reduced as we are not concerned with 3 order dipersion in SMF.

[LALIT VERMAParticipant]

Plz see and if u can help me.

thanks.

[LALIT VERMAParticipant]

I had attached the file name spd2015.osd

Attachments:

1. spd2015.osd