Compensation of Third-Order Inter Modulation Distortion by Using Frequency Chirp Modulation for Electro-Optic Modulator

Yuta Kashiwagi, Kosuke Takase, Tadashi Kawai, Akira Enokihara, Naokatsu Yamamoto, Tetsuya Kawanishi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

A new electro-optic modulator for compensating the nonlinear distortion is proposed. The third-order intermodulation distortion (IMD3) induced in the receiver output are optically suppressed by using two Mach-Zehnder modulators (MZMs) connected in parallel and operating with chirp-parameters of the opposite signs to each other. The performance of the IMD3 compensation was estimated by the numerical calculations. We made an experiment to confirm the IMD3 compensation operation by using 10 GHz two-tone microwave signals and a 1.55 μm light source. The modulator was constituted by a dual-parallel Mach-Zehnder modulator (DPMZM). The chirp parameters of MZMs of the DPMZM were set to +0.5 and -0.5, respectively. It was observed by the measurement that the IMD3 components in the receiver output were suppressed by more than 20 dB compared to those for the conventional single-MZM operation in a range of modulation index below 0.25π rad. These experimental results agree well with the numerical calculation ones.

Original languageEnglish
Title of host publication2018 Progress In Electromagnetics Research Symposium, PIERS-Toyama 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2011-2017
Number of pages7
ISBN (Electronic)9784885523151
DOIs
Publication statusPublished - 2018 Dec 31
Event2018 Progress In Electromagnetics Research Symposium, PIERS-Toyama 2018 - Toyama, Japan
Duration: 2018 Aug 12018 Aug 4

Publication series

NameProgress in Electromagnetics Research Symposium
Volume2018-August
ISSN (Print)1559-9450
ISSN (Electronic)1931-7360

Other

Other2018 Progress In Electromagnetics Research Symposium, PIERS-Toyama 2018
CountryJapan
CityToyama
Period18/8/118/8/4

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

Fingerprint Dive into the research topics of 'Compensation of Third-Order Inter Modulation Distortion by Using Frequency Chirp Modulation for Electro-Optic Modulator'. Together they form a unique fingerprint.

Cite this