期刊
NATURE PHOTONICS
卷 9, 期 6, 页码 374-+出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/NPHOTON.2015.69
关键词
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资金
- Air Force Office of Scientific Research Multi-University Research Initiative [FA9550-09-1-0704]
- Stanford Graduate Fellowship
- Swiss National Science Foundation
- National Physical Science Consortium Fellowship
- National Security Agency
- Directorate For Engineering
- Div Of Electrical, Commun & Cyber Sys [1542152] Funding Source: National Science Foundation
Integrated photonic devices are poised to play a key role in a wide variety of applications, ranging from optical interconnects(1) and sensors(2) to quantum computing(3). However, only a small library of semi-analytically designed devices is currently known(4). Here, we demonstrate the use of an inverse design method that explores the full design space of fabricable devices and allows us to design devices with previously unattainable functionality, higher performance and robustness, and smaller footprints than conventional devices(5). We have designed a silicon wavelength demultiplexer that splits 1,300 nm and 1,550 nm light from an input waveguide into two output waveguides, and fabricated and characterized several devices. The devices display low insertion loss (similar to 2 dB), low crosstalk (<-11 dB) and wide bandwidths (>100 nm). The device footprint is 2.8 x 2.8 mu m(2), making this the smallest dielectric wavelength splitter.
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