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Silicon waveguide racetrack resonators with 1.5 μm radius using junction offsets
Author(s) -
Fan Guofang,
Sang Wei,
Liu Xinhou,
Zhen Zhen
Publication year - 2012
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.26836
Subject(s) - bent molecular geometry , resonator , offset (computer science) , materials science , silicon , waveguide , microwave , radius , optoelectronics , optics , electrical engineering , physics , engineering , telecommunications , computer science , computer security , composite material , programming language
We demonstrate straight and bent silicon waveguide junctions using the junction offsets.More than 20% reduction (about 0.02 dB) of the junction connection losses are obtained for the junction using 25 nm offset with bent radii 1.5 μm, compared with the junction without the offset. We also show that the performance of the silicon waveguide racetrack resonators can be improved by introducing a lateral offset at the straight‐to‐bent waveguide junctions. About 0.5 dB increase in drop power is observed for the racetrack resonators with junction offset. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1470–1471, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26836