Design of a compact multimode interference coupler based on deeply-etched SiO2 ridge waveguides
2007 (English)In: Optics Communications, ISSN 0030-4018, E-ISSN 1873-0310, Vol. 271, no 2, 404-407 p.Article in journal (Refereed) Published
A compact multimode interference (MMI) coupler is realized by using deeply-etched SiO2 ridge waveguides, which have a strong confinement in the lateral direction and improve the quality of self-images in the MMI section, A 1 x 4 MMI coupler is designed as a numerical example and demonstrates good performances such as a low insertion (0.0275 dB) and small non-uniformity (0.0507 dB). The total device size of the present MMI coupler is reduced to about 1/16 of that based on SiO2 buried waveguides.
Place, publisher, year, edition, pages
2007. Vol. 271, no 2, 404-407 p.
multimode interference, coupler, silica, waveguide, deeply etched, ridge
IdentifiersURN: urn:nbn:se:kth:diva-24455DOI: 10.1016/j.optcom.2006.10.084ISI: 000244488900016ScopusID: 2-s2.0-33846188136OAI: oai:DiVA.org:kth-24455DiVA: diva2:349978
QC 201009092010-09-092010-09-092010-09-09Bibliographically approved