Numerical analyses of optical couplers for planar waveguides

Pustelny, T.; Struk, P.

doi:10.2478/s11772-012-0031-0

Cited by 6 publications

(2 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the case of the superstructure waveguide, as the input field is incident at z = 0, the modes of the fields TM 0 and TM 1 excite at the input and interference in the waveguide, where the power exchanges by adding and subtracting between the modes of the superstructure (Figure 1). Usually, couplers or filters are made from (mechanicals or not) periodically corrugated optical waveguides ( [3][4][5][6]).…”

Section: Introductionmentioning

confidence: 99%

Design of planar waveguide directional couplers with arbitrary modal electric field

Boucouvalas

Angelis

Aidinis

et al. 2021

IET Optoelectronics

View full text Add to dashboard Cite

The purpose of this work is to present a method for designing planar waveguide couplers of arbitrary modal electric field distributions. The idea here is to create couplers with unusual electric fields, which confine in one planar waveguide. This is possible if a planar waveguide profile supporting two pre-selected mode fields is designed. Their interference will have to transfer the optical power from one region (bottom layer) to another region (top layer) completely. The inverse transmission-line technique and the desired electric field are applied, based on which the refractive index profile of the couplers exhibiting excellent crosstalk is reconstructed. By choosing this technique, it is feasible to design planar components in sensing applications, such as high power, temperature or pressure sensors and numerous other possibilities, using unusual electric field distributions.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

show abstract

Section: Introductionmentioning

confidence: 99%

Design of planar waveguide directional couplers with arbitrary modal electric field

Boucouvalas

Angelis

Aidinis

et al. 2021

IET Optoelectronics

View full text Add to dashboard Cite

show abstract

“…An interesting material displaying considerable possibilities of application in sensor structures sensitive to some chosen gases is zinc oxide [7,8]. Investigations are particularly devoted to the production of sensor structures in which the active ZnO layer has a large surface, which has the form of nanostructures, e.g.…”

Section: Introductionmentioning

confidence: 99%

Gas Sensors Based on ZnO Structures

et al. 2013

Self Cite

View full text Add to dashboard Cite

The paper presents the results of investigations concerning sensor structures based on porous layers of zinc oxide (ZnO) sensitive to a selected gaseous environment. The investigations comprised analyses of the inuence of the gaseous environment on the optical properties of a sensor structure, in particularly on the change of the spectral characteristics of optical transmission within the range of ultraviolet light and in the visible range. These presented investigations were carried out in such a gaseous environment as nitrogen dioxide NO2 in synthetic air.

show abstract