Analysis of optical modulators for Radio over Free Space Optical Communication systems and Radio over Fiber systems

Author

Prabu, K. ; Bose, Sayan ; Kumar, Dwivedi Sanjeet

Author_Institution

Dept. of Electron. & Commun. Eng., Nat. Inst. of Technol., Trichy, India

fYear

2012

fDate

7-9 Dec. 2012

Firstpage

1176

Lastpage

1179

Abstract

Radio over Free Space Optics (RoFSO) and Radio over Fiber (RoF) are recent technologies in optical communication systems. Both these technologies require some form of external optical modulator in the transmitter side. The commonly used optical modulators are Mach-Zehnder modulator (MZM) and Electro absorption modulator (EAM). In this paper, we analyze the performance of both Mach-Zehnder modulator and Electro absorption modulator for Radio over Free Space Optical Communication systems and it is compared with Radio over Fiber systems. We also discuss about the choice of optical modulator based on the intensity of output light signal.

Keywords

electro-optical modulation; electroabsorption; optical transmitters; radio-over-fibre; EAM; MZM; Mach-Zehnder modulator; RoFSO; electroabsorption modulator; external optical modulator; output light signal intensity; radio over free space optical communication systems; transmitter; Absorption; Optical fiber communication; Optical fibers; Optical interferometry; Optical modulation; Electro Absorption Modulator (EAM); Free Space Optics (FSO); Mach-Zehnder Modulator (MZM); Radio over Fiber (RoF); Radio over Free Space Optics (RoFSO);

fLanguage

English

Publisher

ieee

Conference_Titel

India Conference (INDICON), 2012 Annual IEEE

Conference_Location

Kochi

Print_ISBN

978-1-4673-2270-6

Type

conf

DOI

10.1109/INDCON.2012.6420795

Filename

6420795