Amplitude and Phase Error Correction Algorithm for $3\\times 3$ MMI Based Mach–Zehnder Interferometers

Author

Kleijn, Emil ; van Vliet, Erwin M. ; Pustakhod, Dzmitry ; Smit, Meint K. ; Leijtens, Xaveer J. M.

Author_Institution

COBRA Res. Inst., Eindhoven Univ. of Technol., Eindhoven, Netherlands

Volume

33

Issue

11

fYear

2015

fDate

June1, 1 2015

Firstpage

2233

Lastpage

2239

Abstract

Multimode Interference couplers (MMI) can have deviations in their amplitude and phase relations with respect to the ideal case. When using MMIs to construct a Mach-Zehnder interferometer (MZI), these deviations lead to non-ideal MZI behavior. In this paper, we introduce a correction algorithm that is able to strongly reduce amplitude and phase errors in 3 × 3 MMI based MZIs. Such MZIs are frequently used in phase estimation schemes in wavelength meters. Our method reduces the maximum phase estimation error to 2°, as measured in fabricated devices. This is two to three times better than the conventional method by Todd et al.

Keywords

Mach-Zehnder interferometers; light interference; phase estimation; MMI based Mach-Zehnder interferometers; amplitude error correction algorithm; phase error correction; phase estimation error; wavelength meters; Calibration; Current measurement; Detectors; Estimation error; Mach-Zehnder interferometers; Phase estimation; Wavelength measurement; Integrated optics; optical couplers; optical waveguide filters; wavelength measurement;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2015.2409200

Filename

7055242

Amplitude and Phase Error Correction Algorithm for MMI Based Mach–Zehnder Interferometers

Kleijn, Emil ; van Vliet, Erwin M. ; Pustakhod, Dzmitry ; Smit, Meint K. ; Leijtens, Xaveer J. M.

jour

Amplitude and Phase Error Correction Algorithm for $3\\times 3$ MMI Based Mach–Zehnder Interferometers