scholarly journals OFDM Systems for Optical Communication with Intensity Modulation and Direct Detection

2017 ◽  
Author(s):  
Jian Dang ◽  
Liang Wu ◽  
Zaichen Zhang
Keyword(s):  
Optical Communication ◽  
Direct Detection ◽  
Intensity Modulation ◽  
Ofdm Systems

Performance Estimation of Advanced Intensity Modulation Formats Using Hybrid SAC-OCDMA through IsOWC Channel

2018 ◽  
Vol 0 (0) ◽  
Author(s):  
Himali Sarangal ◽  
Simrandeep Singh Thapar ◽  
Paramjot Singh ◽  
Isha Sharma ◽  
Harmandar Kaur
Keyword(s):  
Optical Communication ◽  
Direct Detection ◽  
Network Capacity ◽  
Intensity Modulation ◽  
Performance Estimation ◽  
Spectral Amplitude ◽  
Long Distance ◽  
Modulation Formats ◽  
Eye Diagram ◽  
Code Division Multiple

AbstractSpectral amplitude coding optical code division multiple access (SAC-OCDMA) is one of the most important multiplexing schemes of OCDMA that has turned out to be a stimulating investigating area in optical communication due to its increased privacy, network capacity and its flexibility in allocating the channels and asynchronous environment. On the other hand, Inter-satellite optical wireless communication (IsOWC) which is a favorable area of research in optical communication is useful for bursty transmissions and long-distance communications. In this paper, we have designed a hybrid SAC-OCDMA system through IsOWC channel using ZCC code for advanced intensity modulation formats (CSRZ, Db, and AMI). The investigation is done for four users at a bit rate of 40(4×10) Gb/s using a direct detection technique. Further, on comparing the proposed system using advanced intensity modulation formats, the result shows that system using CSRZ format is better in terms of BER, Q-factor, SNR and the eye diagram with respect to AMI and Db.

Polarization Demultiplexing Method for Intensity-Modulation Direct-Detection Optical Communication Systems

2014 ◽  
Vol 34 (12) ◽  
pp. 1206004
Author(s):  
周馨雨 Zhou Xinyu ◽  
闫连山 Yan Lianshan ◽  
易安林 Yi Anlin ◽  
陈智宇 Chen Zhiyu ◽  
潘炜 Pan Wei ◽  
...  
Keyword(s):  
Optical Communication ◽  
Communication Systems ◽  
Direct Detection ◽  
Intensity Modulation ◽  
Optical Communication Systems

Stokes vector direct detection for short-reach optical communication

2014 ◽  
Vol 39 (11) ◽  
pp. 3110 ◽  
Author(s):  
Di Che ◽  
An Li ◽  
Xi Chen ◽  
Qian Hu ◽  
Yifei Wang ◽  
...  
Keyword(s):  
Optical Communication ◽  
Direct Detection ◽  
Stokes Vector

Unique Word DMT Schemes for Optical Systems With Intensity Modulation and Direct Detection

2017 ◽  
Vol 35 (18) ◽  
pp. 3862-3869 ◽  
Author(s):  
Sher Ali Cheema ◽  
Emilio Rafael Balda ◽  
Mike Wolf ◽  
Martin Haardt
Keyword(s):  
Direct Detection ◽  
Intensity Modulation ◽  
Optical Systems ◽  
Unique Word
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