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| Full Name | Joseph Jiang |
| Organization | ShangHai Jiaotong University |
| Job Title | Master |
| Country |
Forum Replies Created
Hi,dear Damian.In a long time i want to know why we can not use bit sequences rather than a bit(0 or 1) to control the optical switch.we must use matlab to co-simulate if we want to use bit sequences to real-time control the optical switch state.thank you!
ok，thank you damian，i get the answer！
damian,thank you for your answer.I was learning the double rayleigh backscattering in my unidirectional system .the signal travels forward and it will be backscattered for the first time and twice time ,which will interface with the forward traveling signal.so i want to research how the double rayleigh back scattered signal affect the forward signal and i wonder if the double backscattered light will be added to the forward traveling signal and how we can measure the double rayleigh backscattering power in optisystem?
OK,thank you so much！I think it may be that they have do optimization algorithm to calculate more samples in optisystem v13.0.
OK.THANK YOU DAmian，i will do that work!
hi ,ravil,i Understand what you had said and my question is that i find that the bit sequence length and samples per bit should not be more than 512bit,or it occurs to error.it will not happen when i simulate the same project in the optisystem 13.0.i want to know why it happens?thank you!
Ravil，the reason why I use the bidirectional fiber rather than unidirectional is that i want to add the effect of double rayleigth SCATTERING to my system.however,it occurs to error when i use a bidirectional fiber especially when it is a short distance. I wander if it is a error use loop control when i add a bidirectional fiber.thank you!
thank you for your reply!the reason why I use the bidirectional fiber rather than unidirectional is that i want to add the effect of double rayleigth SCATTERING to my system.thank you!
Thank you，RAVIL!i just want to know is it right for my use with loop control and bidirectional fiber.There is anther question about the version 7.0 of optisystem.i find that the bit sequence length and samples per bit should not be more than 512bit and 64 samples per bit.if not ,it occurs to error.i want to know why it happens?thank you!
yes ,i agree with you.thank you for remind me!
hi,RAVIL,Thank you for your reply!the bit rate of my project is 100MBps.I just want to know why it ocurrs to error when i use the device loop control.as far as i know,the example use of loop control is unidirectional fiber rather than bidirectional fiber.i just want to know is it right for my use with loop control and bidirectional fiber.thank you!
My friends,I want your help!thank you!
OK,Damian,as far as i conclude,if the noise is high enough,the jitter will be a function of bit rate,i.e.the jitter will be higher in high bit rate than low bit rate according to the theory.am i right? THANK YOU FOR YOUR HELP!You are really a expect in optisystem team!
hi,damian,i use the default setting in my directly modulation system.is it OK?
hi,damian,i want to calculate the total jitter including Deterministic and random jitter in the system.i do not think the main problem in my simulation is the lack of jitter because the problem also exist when i use the example MEASURE JITTER ,which add jitter and noise source.May be It is the main noise source in my simulation when i use a 100km undirectional fiber.when i use a ultra-long bidirectional fiber like 1000km and bidirectional EDFA,may be they are the main noise source.thank you for your response!