Experimental Demonstration of Single Mode-Splitting in Microring With Bragg Gratings
2015 (English)In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 27, no 13, 1402-1405 p.Article in journal (Refereed) Published
We demonstrate single mode-splitting in two types of microring resonators with Bragg gratings. In the first device type, gratings are periodically embedded to the inner wall of the microring resonator. By adjusting the reflection coefficient of the grating and the self-coupling coefficient between the waveguide and microring, experimental results show that the distance between the splitting dips can vary from 0 to more than 1 nm. In the second device type, Bragg gratings break into two identical parts with a pi phase shift between them. The center peak in the mode-splitting spectrum has a full-width at half-maximum of 0.1 nm. The spectra can also be a Fano-type transmission, when the phase shift deviates from pi.
Place, publisher, year, edition, pages
2015. Vol. 27, no 13, 1402-1405 p.
Optical mode splitting, optical resonators, Bragg gratings, silicon photonics
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-169947DOI: 10.1109/LPT.2015.2422731ISI: 000355937100013OAI: oai:DiVA.org:kth-169947DiVA: diva2:826919
FunderSwedish Research Council, 621-2011-4620
QC 201506262015-06-262015-06-252015-06-26Bibliographically approved