Title :
Novel Ring Resonator Combining Strong Field Confinement With High Optical Quality Factor
Author :
Steglich, Patrick ; Mai, Christian ; Stolarek, David ; Lischke, Stefan ; Kupijai, Sebastian ; Villringer, Claus ; Pulwer, Silvio ; Heinrich, Friedhelm ; Bauer, Joachim ; Meister, Stefan ; Knoll, Dieter ; Casalboni, Mauro ; Schrader, Sigurd
Author_Institution :
Fac. of Eng. & Natural Sci., Univ. of Appl. Sci. Wildau, Wildau, Germany
Abstract :
Slot waveguide ring resonators appear promising candidates for several applications in silicon photonics. Strong field confinement, high device tunability, and low power consumption are beneficial properties compared with strip waveguides. Slot waveguide ring resonators suffer, however, from rather low optical quality factors due to optical losses. This letter proposes and experimentally demonstrates a novel concept based on a partially slotted ring and a strip-to-slot mode converter. An exceptional high quality factor of ~105 has been measured.
Keywords :
Q-factor; elemental semiconductors; optical losses; optical resonators; optical testing; optical waveguides; silicon; Si; high optical quality factor; optical losses; silicon photonics; slot waveguide ring resonator; strip-to-slot mode converter; strong field confinement; Electrooptical waveguides; Modulation; Optical ring resonators; Optimized production technology; Q-factor; Silicon; Silicon photonics; nanophotonics; optical resonators; optical waveguides; resonator filters; semiconductor waveguide;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2015.2456133
