Linearized Frequency Doubling for Microwave Photonics Links Using Integrated Parallel Mach–Zehnder Modulator

Author

Song Yu ; Tianwei Jiang ; Jian Li ; Ruanbin Zhang ; Guohua Wu ; Wanyi Gu

Author_Institution

State Key Lab. of Inf. Photonics & Opt. Commun., Beijing Univ. of Posts & Telecommun., Beijing, China

Volume

5

Issue

4

fYear

2013

fDate

Aug. 2013

Firstpage

5501108

Lastpage

5501108

Abstract

In microwave photonics links (MPLs), the multicarrier microwave signals are subjected to intermodulation distortion (IMD) and degrades the linearity of the MPL significantly. A linearization scheme is presented with an integrated parallel Mach-Zehnder modulator (MZM), without requiring optical/electrical filters and optical delays. In addition, to reduce the requirements on the electrical and optical components for the high-frequency applications, frequency doubling is designed in this linearization scheme. Theoretical expressions are presented to analyze this scheme. Experimental and numerical results show that the main IMD2 products are suppressed by more than 35 dB.

Keywords

integrated optoelectronics; intermodulation distortion; linearisation techniques; microwave photonics; numerical analysis; optical distortion; optical harmonic generation; optical links; optical modulation; IMD; IMD2 products; MPL; MZM; electrical components; high-frequency applications; integrated parallel Mach-Zehnder modulator; intermodulation distortion; linearization method; linearized frequency doubling; microwave photonics links; multicarrier microwave signals; numerical analysis; optical components; Amplitude modulation; Optical attenuators; Optical distortion; Optical filters; Optical harmonic generation; Optical interferometry; Optical modulation; Microwave photonics links (MPL); frequency doubling; intermodulation distortion (IMD); linearization;

fLanguage

English

Journal_Title

Photonics Journal, IEEE

Publisher

ieee

ISSN

1943-0655

Type

jour

DOI

10.1109/JPHOT.2013.2271636

Filename

6553613