Forum Options New Topic Gallery Categories All Knowledge General System SPICE FDTD BPM Grating Fiber Exchange Home › Forums › SYSTEM › High bit-rate jitter High bit-rate jitter Ravil (joined August 2014) Participant Dear optiwave team, what is the best (more precise) way to measure jitter (phase shift) for high bit-rate TDM? Responses (6): Reply September 29, 2014 at 11:59 pm #14010 RavilParticipant Dear optiwave team, what is the best (more precise) way to measure jitter (phase shift) for high bit-rate TDM? September 30, 2014 at 1:46 pm #14024 Damian MarekParticipant If you are modulation scheme is NRZ/RZ on/off keying then you should try the BER Analyzer. It will calculate the Peak-to-peak jitter and RMS jitter value in the results section. Look at the component help for more info. +1 September 30, 2014 at 11:18 pm #14026 RavilParticipant Thanks for your quick reply, Damain! Usually, more advanced modulation schemes are being used for high bit-rate, e.g. DP, QPSK, etc. Will BER Analyzer be useful for them? October 1, 2014 at 9:09 am #14029 Damian MarekParticipant You could observe it graphically like in: Signal degradation – Jitter In QAM there would be multiple levels, but it should be possible to just choose one crossing or take an average of multiple crossings. September 30, 2014 at 11:41 pm #14027 RavilParticipant Is it possible to useful Clock Recovery component to measure the phase shift and then estimate the jitter? Or Time domain visualizer will be more accurate? October 1, 2014 at 9:15 am #14030 Damian MarekParticipant I’m not sure how you would calculate the jitter from the phase shift. From my understanding the best way is to look at the eye diagram of a transmitted sequence. October 3, 2014 at 11:45 pm #14052 RavilParticipant OK, thank you for advice! 1 Login You must be logged in to reply to this topic.