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학술지 Enhanced Four-Wave-Mixing Effects by Large Group Indices of One-Dimensional Silicon Photonic Crystal Waveguides
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저자
김동욱, 김승환, 이승헌, 정흥선, 이종무, 이일항, 김경헌
발행일
201312
출처
Optics Express, v.21 no.24, pp.30019-30029
ISSN
1094-4087
출판사
Optical Society of America(OSA)
DOI
https://dx.doi.org/10.1364/OE.21.030019
협약과제
13VB3700, [7세부] Optical interconnection을 이용한 차세대 BEOL 기술, 이종무
초록
Enhanced four-wave-mixing (FWM) effects have been observed with the help of large group-indices near the band edges in one-dimensional (1-D) silicon photonic crystal waveguides (Si PhCWs). A significant increase of the FWM conversion efficiency of about 17 dB was measured near the transmission band edge of the 1-D PhCW through an approximate 3.2 times increase of the group index from 8 to 24 with respect to the central transmission band region despite a large group-velocity dispersion. Numerical analyses based on the coupled-mode equations for the degenerated FWM process describe the experimentally measured results well. Our results indicate that the 1-D PhCWs are good candidates for large group-index enhanced nonlinearity devices even without having any special dispersion engineering. © 2013 Optical Society of America.
KSP 제안 키워드
Conversion efficiency(C.E.), Dispersion engineering, Enhanced nonlinearity, Four-Wave Mixing(Fwm), Group index, Group-velocity dispersion, Numerical analyses, One-dimensional, Photonic crystal waveguides, Silicon photonics, Transmission band