Effect of interfering echoes in a DPSK coherent optical transmission system with optical amplifiers

1990 ◽  
Vol 137 (4) ◽  
pp. 248 ◽  
Author(s):  
G.R. Walker ◽  
R.C. Steele ◽  
N.G. Walker
Keyword(s):  
Optical Transmission ◽  
Optical Amplifiers ◽  
Transmission System

Suppressing of Nonlinear Phase Noise in Dispersion Managed Quasi-Linear Transmission Systems

2014 ◽  
Vol 511-512 ◽  
pp. 234-237
Author(s):  
Hai Tao Chen ◽  
You Cheng Liang
Keyword(s):  
Phase Noise ◽  
High Speed ◽  
Optical Transmission ◽  
Optical Amplifiers ◽  
Phase Conjugation ◽  
Transmission System ◽  
First Order ◽  
Nonlinear Phase ◽  
Calculation Results ◽  
Main Factor

Dispersion and nonlinear effect of fiber is the main factor limiting the performance of the long-haul and high speed optical transmission system. This paper focuses on the analysis and modeling of nonlinear phase noise in quasi-linear optical transmission system. The analytical expression for the nonlinear phase noise is obtained basing on the first order perturbation theory. And the numerical calculation of the nonlinear phase noise is deduced. The calculation results show that when the noise source and the end point of the system is equidistant from the optical phase conjugation (OPC), the nonlinear phase noise added by the optical amplifiers can be compensated by the OPC located after the optical amplifiers.

Jitter accumulation in a simulated 591.2 Mbit/s, 6000 km optical transmission system

1988 ◽  
Vol 24 (11) ◽  
pp. 676-678
Author(s):  
B.I. McNally ◽  
S.F. Carter ◽  
S.D. Walker
Keyword(s):  
Optical Transmission ◽  
Transmission System

Automatic polarisation mode dispersion compensation in 40 Gbit/s optical transmission system

1998 ◽  
Vol 34 (23) ◽  
pp. 2258 ◽  
Author(s):  
D. Sandel ◽  
M. Yoshida-Dierolf ◽  
R. Noé ◽  
A. Schöpflin ◽  
E. Gottwald ◽  
...  
Keyword(s):  
Optical Transmission ◽  
Dispersion Compensation ◽  
Transmission System ◽  
Mode Dispersion ◽  
Polarisation Mode Dispersion

Complete PMD compensation in 40-Gbit/s optical transmission system

2004 ◽  
Author(s):  
Rui Luo ◽  
Tangjun Li ◽  
Muguang Wang ◽  
Jie Cui ◽  
Shuisheng Jian
Keyword(s):  
Optical Transmission ◽  
Transmission System ◽  
Pmd Compensation

Effect of fibre dispersion on four-wave mixing in multichannel coherent optical transmission system

1992 ◽  
Vol 28 (11) ◽  
pp. 989-991 ◽  
Author(s):  
G.R. Walker ◽  
D.M. Spirit ◽  
P.J. Chidgey ◽  
E.G. Bryant ◽  
C.R. Batchellor
Keyword(s):  
Optical Transmission ◽  
Four Wave Mixing ◽  
Transmission System ◽  
Wave Mixing

scholarly journals Performance Analysis of Subcarrier Multiplexed Optical Transmission System for QPSK Data

2020 ◽  
Vol 9 (2) ◽  
pp. 466-476
Keyword(s):  
Optical Transmission ◽  
Dispersion Compensation ◽  
Chromatic Dispersion ◽  
Transmission System ◽  
Laser Source ◽  
Radio Link ◽  
Link Distance ◽  
Performance Results ◽  
The Impact ◽  
Dispersion And Attenuation

This paper focuses on the impact of different parameters on the performance of the Subcarrier Multiplexed Optical Transmission System for the application on radio link via optical fiber. Performance results are evaluated for QPSK data format for ODSB and OSSB modulation of Microwave subcarriers with digital NRZ coded random data patterns. The four subsystems of QPSK modulators are at 400, 500, 600, 700 MHz subcarrier frequencies with frequency spacing of 100 MHz. The power of subcarriers is decreasing with increasing the link distance due to dispersion and attenuation. By using dispersion compensation fiber, the link distance has been enhanced from 100 km to 240 km successfully. The impact of chromatic dispersion has been reduced in OSSB by using dual-electrode MZM. The constellation diagram also confirms that the phase of the signal after traveling through the link is changing due to dispersion. The phase is the same for subcarrier 600 MHz & 700 MHz for ODSB and OSSB in QPSK SCM. The impact of linewidth and responsivity on SNR has also analyzed to evaluate the performance. It is concluded that the maximum SNR is decreasing with increase in the linewidth of laser source and increasing with the increase in responsivity of PIN diode for the same fiber length in SCM transmission.

Sign in / Sign up

Export Citation Format

Share Document