TY  - CHAP
U1  - Konferenzveröffentlichung
A1  - Serecunova, Stanislava
A1  - Seyringer, Dana
A1  - Uherek, Frantisek
A1  - Chovan, Jozef
A1  - Seyringer, Heinz
T1  - Comparison of optical properties of 1×8 Y-branch and MMI splitter based on silicon nitride material platform
T2  - 22nd Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics. 5-9 September 2022. Wojanow, Poland.
N2  - This paper describes two different designs of 1×8 passive optical splitters. The first splitter consists of cascade arranged directional waveguide branches (Y-branch splitter) with (0.8×0.16) µm2 waveguide cross-section. The second splitter is based on multimode interference occurring in a large MMI coupler, which uses a self-imaging effect for beam propagation, exhibiting the same waveguide core size as a Y-branch splitter. The waveguide channel profile, used in both approaches, is based on a silicon nitride material platform, with a refractive index of core being nc = 1.925 and a refractive index of cladding ncl = 1.4575. The splitters are designed as a planar structure for a medical operating wavelength 850 nm. Design, simulation, and optimization of passive optical components are performed by a commercial photonic software tool BeamPROP simulation engine by RSoft Photonics Suite tool, employing beam propagation method. This work aims to find the minimum physical dimensions of the designed splitters with the satisfactory optical performance. According to the minimum insertion loss and minimum non-uniformity, the optimum length of the splitters is determined. Finally, the optical properties of splitters for both approaches are discussed and compared with each other.
Y1  - 2022
SN  - 0277-786X
SS  - 0277-786X
U6  - https://doi.org/10.1117/12.2662002
DO  - https://doi.org/10.1117/12.2662002
SP  - 1
EP  - 7
S1  - 8
PB  - SPIE
CY  - Bellingham, Washington
ER  -