Performance enhancement techniques for free-space optical transmission systems

Author

Wen-De Zhong ; Zixiong Wang ; Changyuan Yu

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore

fYear

2013

fDate

23-27 June 2013

Firstpage

1

Lastpage

5

Abstract

Free-space optical (FSO) communication offers many advantages including high capacity, high security, free spectrum license and easy to install and remove. However due to the inhomogeneity of temperature and pressure fluctuations, the intensity of an optical wave fluctuates when it propagates through the atmosphere. Such fluctuation is known as scintillation, which can deteriorate the FSO transmission performance severely. We have recently investigated and analyzed two effective techniques to mitigate the adverse effect of scintillation. These techniques include a dynamic detection threshold (DDT) scheme with coherent detection and a reference continuous wave (CW) light assisted detection technique. They are reviewed and discussed in detail.

Keywords

fluctuations; light transmission; optical communication; scintillation; DDT; FSO communication; coherent detection; dynamic detection threshold; free-space optical communication; free-space optical transmission systems; optical wave; pressure fluctuations; reference continuous wave light; scintillation; temperature fluctuations; Atmospheric waves; Bit error rate; Coherence; Communication systems; Fluctuations; Integrated optics; Optical receivers; FSO communication; coherent detection; dynamic detection threshold; scintillation;

fLanguage

English

Publisher

ieee

Conference_Titel

Transparent Optical Networks (ICTON), 2013 15th International Conference on

Conference_Location

Cartagena

ISSN

2161-2056

Type

conf

DOI

10.1109/ICTON.2013.6602763

Filename

6602763