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Writing Bragg Gratings in Multicore Fibers
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Bandwidth-tunable band-rejection filter based on helicoidal fiber grating pair of opposite helicities

Woojin Shin1, Bong-Ahn Yu, Young-Chul Noh

  • 1Advanced Photonics Research Institute, Guangju Institute of Science and Technology, Guangju, Korea. swj6290@gist.ac.kr

Optics Letters
|April 19, 2007
PubMed

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In signal processing, bandpass sampling is an effective technique for sampling signals that have most of their energy concentrated within a narrow frequency band. This type of signal is known as a bandpass signal. The key principle of bandpass sampling involves sampling the signal at a rate that is greater than twice the signal's bandwidth to prevent aliasing.
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