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Title: Mid-infrared, ultra-broadband, low-loss, compact arbitrary power splitter based on adiabatic mode evolution
Authors: Sia, Brian Jia Xu
Wang, Wanjun
Guo, Xin
Zhou, Jin
Zhang, Zecen
Mohamed Said Rouifed
Li, Xiang
Qiao, Zhong Liang
Liu, Chong Yang
Littlejohns, Callum
Reed, Graham T.
Wang, Hong
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2019
Source: Sia, B. J. X., Wang, W., Guo, X., Zhou, J., Zhang, Z., Mohamed Said Rouifed, . . . Wang, H. (2019). Mid-infrared, ultra-broadband, low-loss, compact arbitrary power splitter based on adiabatic mode evolution. IEEE Photonics Journal, 11(2),6601111-. doi:10.1109/JPHOT.2019.2907788
Project: NRF-CRP12-2013-04
Journal: IEEE Photonics Journal
Abstract: We designed and demonstrated TE-mode arbitrary power splitters based on adiabatic mode evolution. The power splitters are designed with a footprint of smaller than 12 × 2.9 μm 2 , fabricated on a 400-nm silicon-on-insulator platform, requiring only a single etch step. The optimization process and the conditions for arbitrary-power splitting are performed using three-dimensional-FDTD simulations. We prove this concept through the fabrication of asymmetrical adiabatic evolution-based power splitters with splitting ratios of 50:50, 60:40, and 70:30. The fabricated devices are shown to agree closely with simulation results. Broadband operation with low insertion loss of 0.11-0.6 dB is demonstrated across the 3.66-3.89 μm wavelength range (230 nm). This component has applications in a multitude of areas such as spectroscopic optical sensing and optical phased arrays photonic integrated circuits etc.
ISSN: 1943-0655
DOI: 10.1109/JPHOT.2019.2907788
Rights: © 2019 IEEE. This journal is 100% open access, which means that all content is freely available without charge to users or their institutions. Articles accepted before 12 June 2019 were published under a CC BY 3.0 or the IEEE Open Access Publishing Agreement license. Questions about copyright policies or reuse rights may be directed to the IEEE Intellectual Property Rights Office at +1-732-562-3966 or
Fulltext Permission: open
Fulltext Availability: With Fulltext
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