Comparing ITU-T G.652,653 and 655 fibers for RZ modulation
نویسندگان
چکیده
The study of advanced modulation formats for high speed internet services using potentially the bandwidth of single mode embedded fiber is very important.An investigation is done on ITU-T G 6.652(single mode fiber) ,6.653 and 6.655 transmission fibers for RZ pulse with different duty cycle. The variation of Q-value and BER versus distance for different duty cycle for different fibers is compare on single channel signal transmission for 10 Gbit/sec system .
منابع مشابه
Analysis of FWM Penalties in DWDM Systems Based on G.652, G.653, and G.655 Optical Fibers
This paper presents an investigation of the power penalties imposed by four-wave mixing (FWM) on G.652 (SingleMode Fiber SMF), G.653 (Dispersion-Shifted Fiber DSF), and G.655 (Non-Zero Dispersion-Shifted Fiber NZDSF) compliant fibers, considering the DWDM grids suggested by the ITU-T Recommendations G.692, and G.694.1, with uniform channel spacing of 100, 50, 25, and 12.5 GHz. The mathematical/...
متن کاملInvestigation of Differently Modulated Optical Signals Transmission in HDWDM Systems
The authors’ developed combined system model can be considered under the concept of next generation optical network (NGON) as a model for the future design of backbone networks. Such solution can be topical in the result of different telecom operators’ optical networks convergence. In this case a necessity to transmit differently modulated signals over a single optical fiber even with different...
متن کاملAll-optical amplitude-phase transmultiplexing of RZ-OOK and RZ-BPSK to RZ-QPSK by polarization-insensitive XPM using a nonlinear birefringent AlGaAs waveguide.
Polarization-insensitive (PI) phase-transmultiplexing (PTM) of a 10-Gb/s return-to-zero ON-OFF keying (RZ-OOK) pump and a 10-Gb/s RZbinary phase-shift keying (RZ-BPSK) probe to 20-Gb/s RZ-quadrature-PSK (RZ-QPSK) has been successfully demonstrated for the first time in a passive, birefringent AlGaAs waveguide, utilizing PI cross-phase modulation (PI-XPM). For differential QPSK (DQPSK)-detection...
متن کاملAdvanced Optical Modulation Formats in High-speed Lightwave System
In the next generation of lightwave systems, high speed datarate like 10Gb/s or 40Gb/s per channel is very attractive. In addition, to pack more channels into one single fiber, channel spacing is decreased from 200GHz to 50GHz or even smaller. The direct side-effect is that linear and nonlinear degrading effects will be severe in such high-speed lightwave systems. An optimal modulation format w...
متن کاملReceiver-based packet loss concealment for pulse code modulation (PCM G.711) coder
This paper introduces a high-performance concealment algorithm for packetized PCM-coded speech as in ITU-T Recommendation G.711. The proposed prediction algorithm implements a combination of linear prediction model and reverse-order replicated pitch period technique as implemented in the ITU-T G.711 Appendix A (ITUT Recommendation G.117, November 2000). The new algorithm is compared to the ITU-...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2011