Journal
PHOTONICS RESEARCH
Volume 7, Issue 2, Pages 240-245Publisher
OPTICAL SOC AMER
DOI: 10.1364/PRJ.7.000240
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Funding
- National Natural Science Foundation of China (NSFC) [61205054]
- Natural Science Foundation of Zhejiang Province [LQ12F05006]
- State Key Laboratory of Modern Optical Instrumentation
- State Key Laboratory of Advanced Optical Communication Systems and Networks
- ZJU Micro-Nano Fabrication Center
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Slow light, a technology to control the optical signal by reducing the group velocity, has been widely studied to obtain enhanced nonlinearities and increased phase shifts owing to its promoting of the light-matter interaction ability. In this work, a wideband slow light is achieved in a simple one-dimensional fishbone grating waveguide. A flat band indicating slow light with a group index of 13 and bandwidth over 10 nm is obtained by the plane wave expansion calculation, and the corresponding experimental results agree well with the theoretical prediction. A step taper is designed to compensate the coupling loss. The proposed fishbone grating waveguide is a good candidate for wideband slow light devices in light communication. (C) 2019 Chinese Laser Press
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