Performance comparison of optical 8-ary differential phase-shift keying systems with different electrical decision schemes: Comment.

نویسندگان

  • Erik Agrell
  • Magnus Karlsson
چکیده

We summarize three electrical decision schemes that have been proposed for 8-level differential phase-shift keying, briefly discuss their performance and complexity, and comment that two of these schemes have been confused in an earlier comparison in Optics Express.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Effect of Nonlinear Phase Variation in Optical Millimetre Wave Radio over Fibre Systems

In this paper, we propose an optical millimetre wave radio-over-fibre (mm-wave RoF) system that uses a dual drive Mach Zehnder modulator (DD-MZM), which is biased at the maximum transmission biasing point, to generate an optical double sideband-suppressed carrier. The input to the DD-MZM are binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), 8-phase shift keying (8-PSK) and...

متن کامل

Performance Evaluation of Optically Preamplified M -

M -ary pulse position modulation (M -ary PPM) has been widely considered as an attractive solution for increasing the bit rates in free-space optical (FSO) communications. Besides increasing the bit rate, M -ary PPM increases the power efficiency of FSO systems. Hence, better performance can be achieved at lower Eb/N0 values when compared to on-off keying (OOK). M -ary PPM systems can be implem...

متن کامل

Performance of 4-ary ASK for Optical Communication Systems in Dispersive, Nonlinear Environments

Absrrael: Multi-level modulations schemes for optical communication systems use less bandwidth for a given data rate, and so besides having potential spectral efficiency advantages, may also provide reduced sensitivity to fiber dispersion and nonlinearities. In this paper we model the propagation of 4-level amplitude shift keying signals, and compare their performance, for both return-to-zero a...

متن کامل

Multilevel amplitude shift keying in dispersion uncompensated optical systems

The authors model and characterise the performance of 10 Gbit/s 4-ary amplitude shift keying (ASK) systems in dispersive environments at 1550 nm. Both non-return-to-zero (NRZ) and return-to-zero (RZ) formats are examined, with comparisons to on-off keying (OOK) in each case. Both single amplified links and cascaded fibre-amplifier links are modelled. While 4-ary ASK systems suffer a back-to-bac...

متن کامل

Dispersion Compensated Fibers with Advanced Modulation Schemes in Optical Fiber Communication System

A comprehensive study of the various modulation techniques has been discussed which helps to increase data rate, to overcome dispersion effects and various non-linear effects in the fibre. Modulation formats such as OOK (On Off Keying), BPSK (Binary Phase Shift Keying), DPSK (Differential Phase Shift Keying), DP-QPSK (Dual Polarized Quadrature Phase Shift Keying) and duobinary are studied. The ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Optics express

دوره 14 4  شماره 

صفحات  -

تاریخ انتشار 2005