All-fiber multimode interference bandpass filter |
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Authors: | Mohammed Waleed S Smith Peter W E Gu Xijia |
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Institution: | Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada. |
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Abstract: | A novel design for an all-fiber bandpass filter based on a multimode interference reimaging phenomenon is presented. The filter has achieved low insertion loss with adequate bandwidth and isolation for coarse wavelength-division multiplexing. The filter can easily be made with any central wavelength that is compatible with the single-mode fiber used for its construction. The measured filter performance matches the theoretical predictions well. The filter can have broad applications in fiber-optic telecommunications, spectroscopy, and sensing. |
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