Details

Autor(en) / Beteiligte

• Yu, Xin
• Goddard, Lynford L.
• Li, Xiuling
• Chen, Xiaogang

Titel

Enhanced axial confinement in a monolithically integrated self-rolled-up SiNx vertical microring photonic coupler

Ist Teil von

• Applied physics letters, 2016-09, Vol.109 (11)

Ort / Verlag

United States: American Institute of Physics (AIP)

Erscheinungsjahr

2016

Quelle

American Institute of Physics (AIP) Journals

Beschreibungen/Notizen

• We report an efficient method to introduce enhanced axial confinement in the self-rolled-up SiNx vertical microtube coupler by depositing a thin layer of high refractive index material strip within the coupling section and effectively forming a vertical microring. Three times wider mode spacing is observed in such a vertical microring coupler monolithically integrated with a silicon nitride ridge waveguide as compared to the one without such axial confinement. More importantly, single mode operation within the telecomm C-band and S-band is achieved.