The effect of wavelength variation on Mach-Zehnder Interferometer structures using GaN semiconductors for telecommunication

Maratul Hamidah, Dini Fithriaty, M. Raditya Gumelar, Retno Wigajatri Purnamaningsih

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The Mach-Zehnder Interferometer is one of the fundamental components in a photonic circuit. It has a variety of functions, such as wavelength filtering, optical switching, and optical sensing. Gallium Nitride (GaN) semiconductor-based devices have been a source of interest for photonic device researchers, owing to their ability to operate at high temperatures and high power levels. In this work, we have investigated the effect of wavelength variation on the relative power in the Mach- Zehnder Interferometer structure, based on two directional couplers using GaN on Sapphire as a preliminary study to design the wavelength selections. The structure was optimised using OptiBPM with the beam propagation method. We optimised the structure by varying length of the waveguide and the gap between the top and bottom waveguide. Based on the results of the numerical experiment, we found the best length and gap value of the Mach-Zehnder Interferometer to be 14500 μm and 36μm. It also shown that optical field propagation is uniform and the relative power reaches 0.93 at a 1.55μm wavelength. The simulation was conducted using a wavelength range from 1.50 up to 1.60 μm with increments of 0.01 μm to obtain the performance of structure at the C-band range. By varying wavelength from 1.50 up to 1.60 μm, the result indicate that the optical field propagation is uniform and the relative power almost stable at 0.9.

Original languageEnglish
Title of host publicationThird International Seminar on Photonics, Optics, and Its Applications, ISPhOA 2018
EditorsAgus Muhammad Hatta, Aulia Nasution
PublisherSPIE
ISBN (Electronic)9781510627543
DOIs
Publication statusPublished - 1 Jan 2019
Event3rd International Seminar on Photonics, Optics, and Its Applications, ISPhOA 2018 - Surabaya, Indonesia
Duration: 1 Aug 20182 Aug 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11044
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference3rd International Seminar on Photonics, Optics, and Its Applications, ISPhOA 2018
CountryIndonesia
CitySurabaya
Period1/08/182/08/18

Keywords

  • BPM
  • Directional coupler
  • GaN
  • Mach-Zehnder interferometer
  • Optical devices
  • Photonic waveguide

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