Title :
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
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;
Conference_Titel :
Microwave Photonics, 2002. International Topical Meeting on
Print_ISBN :
4-88552-187-4
DOI :
10.1109/MWP.2002.1158899
