Gain saturated SOA cascaded EML analog optical transmitter

Author

Jung, Hyun-Do ; Lee, Sang-Yun ; Han, Sang-Kook

Author_Institution

Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea

fYear

2002

fDate

5-8 Nov. 2002

Firstpage

205

Lastpage

208

Abstract

We present an improvement in an analog optical transmission performance by reducing both the nonlinearity and the periodic RF carrier suppression. The proposed technique takes advantage of the gain saturation characteristics of a semiconductor optical amplifier (SOA) to reduce the intrinsic nonlinearity of an electroabsorption-modulated laser (EML) and the negative chirp characteristics of the SOA and EML to expand the transmission length and operating frequency. Furthermore, RF signal gain was also obtained through optical signal amplification.

Keywords

chirp modulation; electro-optical modulation; linearisation techniques; nonlinear distortion; optical transmitters; semiconductor optical amplifiers; RF signal gain; SOA cascaded EML; analog optical transmitters; electroabsorption-modulated lasers; gain saturated SOA; gain saturation; linearization; negative chirp characteristics; nonlinear distortion; nonlinearity reduction; operating frequency; optical signal amplification; periodic RF carrier suppression; semiconductor optical amplifiers; transmission length; Chirp modulation; Electrooptic modulation; Linear approximation; Optical transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Photonics, 2002. International Topical Meeting on

Print_ISBN

4-88552-187-4

Type

conf

DOI

10.1109/MWP.2002.1158899

Filename

1158899