Application of Semiconductor Optical Amplifiers in Scalable Switched Radio-over-Fiber Networks

Author

Qian, Xin ; Hartmann, Peter ; Li, Sheng ; Penty, Richard V. ; White, Ian H.

Author_Institution

Department of Engineering, University of Cambridge, Cambridge CB2 1PZ, UK, Phone: +44 (0) 1223 339880, Fax: +44 (0) 1223 767032, Email: xq203@cam.ac.uk

fYear

2005

fDate

12-14 Oct. 2005

Firstpage

317

Lastpage

320

Abstract

This paper reports the use of semiconductor optical amplifier (SOA) based routing switches in radio-over-fiber (RoF) systems. It is shown that only little additional penalty is introduced by the switches. A proof-of-principle 10 × 10 switching unit is employed in a time-domain switched RoF network, where an SFDR of 96.5dB·Hz^2/3is achieved and a 10MSymbol/s QPSK modulated signal at a carrier frequency of 2.5GHz is switched with an EVM of 1.48%. Switching times as low as 50μs are achieved, limited by the driving circuitry of the SOAs. Furthermore, it is demonstrated that the switch is scalable and can be cascaded.

Keywords

Amplified spontaneous emission (ASE); analog switched network; error vector magnitude (EVM); radio-over-fiber (RoF); semiconductor optical amplifier (SOA); spurious-free dynamic range (SFDR); Intelligent networks; Optical filters; Optical modulation; Optical switches; Radio frequency; Routing; Semiconductor optical amplifiers; Spontaneous emission; Stimulated emission; Time domain analysis; Amplified spontaneous emission (ASE); analog switched network; error vector magnitude (EVM); radio-over-fiber (RoF); semiconductor optical amplifier (SOA); spurious-free dynamic range (SFDR);

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Photonics, 2005. MWP 2005. International Topical Meeting on

Print_ISBN

89-950043-3-9

Type

conf

DOI

10.1109/MWP.2005.203602

Filename

1590330