Optical UWB doublet pulse generation using multiple nonlinearities of single SOA

Author

Dong, Junchen ; Zhang, Xiaobing ; Zhang, Ye ; Huang, Dijiang

Author_Institution

Wuhan Nat. Lab. for Optoelectron., Huazhong Univ. of Sci. & Technol., Wuhan

Volume

44

Issue

18

fYear

2008

Firstpage

1083

Lastpage

1084

Abstract

All-optical ultra-wideband (UWB) doublet pulse generation based on the multiple nonlinear effects of a single semiconductor optical amplifier (SOA) is demonstrated. First, a monocycle pulse is obtained by means of cross-gain modulation and self gain-saturation in the SOA, and a Gaussian pulse at conjugated light is obtained using four-wave mixing of the SOA. Secondly, the Gaussian pulse at the conjugated light is combined with the monocycle pulse by proper time delay to form a doublet pulse. The central frequency and 10 dB bandwidth of the doublet radio frequency are 5 and 6.25 GHz, respectively. The scheme is simple since only a single SOA is required.

Keywords

Gaussian distribution; multiwave mixing; optical modulation; optical pulse generation; semiconductor optical amplifiers; Gaussian pulse; SOA; all-optical ultrawideband doublet pulse generation; cross-gain modulation; doublet radio frequency; four-wave mixing; frequency 5 GHz; frequency 6.25 GHz; monocycle pulse; multiple nonlinear effects; self gain-saturation; semiconductor optical amplifier;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el:20080439

Filename

4610684