Design of planar waveguide directional couplers with arbitrary modal electric field

Autor:	Anthony Boucouvalas, Kostas Angelis, Konstantinos Aidinis, Min Zhan, Danshi Wang
Jazyk:	angličtina
Rok vydání:	2022
Předmět:	optical directional couplers optical planar waveguides refractive index electric fields optical design techniques optical crosstalk Applied optics. Photonics TA1501-1820
Zdroj:	IET Optoelectronics, Vol 16, Iss 1, Pp 34-46 (2022)
Druh dokumentu:	article
ISSN:	1751-8776 1751-8768
DOI:	10.1049/ote2.12054
Popis:	Abstract 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.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/a598803a0eb94a3d90eb3a2c179c55fa Zobrazit plný text záznamu Plný text View record in DOAJ