Performance Study of 40-Gb/s RZ Signals Through Cascaded Thin-Film Filters with Large Dispersion Slope.

نویسندگان

  • Yue Wang
  • Weisheng Hu
  • Yikai Su
  • Zheng Zheng
  • Lufeng Leng
  • Xiangqing Tian
  • Yaohui Jin
چکیده

The performance of 40-Gb/s RZ signals through cascaded thinfilm filters is investigated by both numerical and analytical means. It is observed that the filtering effects can reduce the eye closure penalties caused by the large dispersion slope of the thin-film filters. In addition, the performance can be further improved by proper frequency detuning between the signal and the center of the filter. The combined effects of dispersion slope and filtering on 40-Gb/s signals are investigated analytically and explained for typical bit patterns.

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

Optimized Optical Filtering For 40 Gb/s/Channel Optical Differential Quadrature Phase Shift Key (DQPSK), In DWDM Systems For Acces Network

The optimization of multiplexing (MUX) and demultiplexing (DMUX) 3-dB filter bandwidths for the optical differential quadrature phase shift key (DQPSK) combined with the return-to-zero (RZ) and carrier-suppressed returnto-zero (CS-RZ) is performed. The study of different optical signals in the 40 Gb/s dense wavelength division multiplexing (DWDM) system, with high spectral efficiency, is shown ...

متن کامل

Simulation of Single - Channel Optical Systems at 100 Gb / s

With the help of a computer simulation, we have investigated the conditions under which the transmission of light pulses through optical fibers may be possible over thousands of kilometers at a bit rate of 100 Gb/s. Employing an amplifier spacing of only 20 km, nonreturn-to-zero (NRZ), return-to-zero (RZ), and dispersion-managed solitons (DMS’s) may all be useful provided that certain additiona...

متن کامل

Performance Degradation of 100 Gb/s PM-QPSK and 400 Gb/s PM- 16QAM Single Carrier and Dual Carrier Coherent Systems Due to Cascaded Optical Filters

ABSTRACT In this paper, we studied the performance degradation of single-carrier and dual-carrier 100 Gb/s and 400 Gb/s systems due to optical filter cascade with 50 and 100/150 GHz channel spacing, respectively. Eye closure penalty (ECP) is used as a performance evaluation metric, where we use two types of filters: fiber Bragg grating (FBG) and thin-film filters (TFF). Simulation results indic...

متن کامل

On-Chip Wavelength Multicasting of 3×320-Gb/s Pulsed-RZ Optical Data

We demonstrate for the first time on-chip wavelength multicasting of 320-Gb/s pulsed-RZ data. Using four-wave mixing in a dispersion-engineered silicon waveguide, we perform a 3× multicast, verify full selectivity, perform spectral evaluation, and record eye diagrams for the wavelength-multicasted signal. Introduction Recent advances in silicon photonics have given this integrated platform the ...

متن کامل

Ghost-pulse generation suppression in phase-modulated 40-Gb/s RZ transmission

40-Gb/s return-to-zero (RZ) transmission in strong dispersion maps is limited by single-channel four-wave mixing. Appropriate phase modulation of the signal suppresses generation of the ghost pulses. Duobinary and modified duobinary encoding produce cancellation of nonlinear interaction while carrier-suppressed RZ generates perturbations that add up coherently.

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 13 6  شماره 

صفحات  -

تاریخ انتشار 2005