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Numerical analysis of an optical coupler composed of three‐channel waveguides with different core sizes
Author(s) -
Kubo Hiroshi,
Yasumoto Kiyotoshi
Publication year - 1991
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.4650040504
Subject(s) - core (optical fiber) , power dividers and directional couplers , hybrid coupler , channel (broadcasting) , optics , output coupler , maximum power transfer theorem , power (physics) , dispersion (optics) , materials science , optical power , physics , telecommunications , engineering , resonator , quantum mechanics , laser
An optical coupler composed of three‐channel waveguides with different core sizes is analyzed numerically. Dispersion relations and field distributions are presented for the lowest three modes in the coupler. It is shown that the geometric parameter of the coupler can be optimized so as to satisfy the condition for a maximum power transfer efficiency.