Synthesis of broadband and flat parametric gain by idler loss in optical fiber |
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| Authors: | Kun Xu Hongyao Liu Yitang Dai Jian Wu Jintong Lin |
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| Institution: | 1. School of Computer and Information Engineering, Beijing Technology and Business University, Beijing, 100048, PR China;2. School of Science, Beijing Technology and Business University, Beijing, 100048, PR China;3. School of Electronics and Information Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China;4. Beijing Key Laboratory of Big Data Technology for Food Safety, Beijing Technology and Business University, Beijing, 100048, PR China;1. Department of Engineering Mathematics and Physics, Higher Institute of Engineering, El Shorouk, Egypt;2. Department of Space Science, University of the Punjab, Lahore 54590, Pakistan;3. Centre for Undergraduate Studies, University of the Punjab, Lahore 54590, Pakistan;1. Department of Mathematics and Institute of Applied Mathematics, Middle East Technical University, 06800 Ankara, Turkey;2. Department of Mathematics and Computer Sciences, Istanbul Kültür University, 34156 Istanbul, Turkey;3. Department of Mathematics, Middle East Technical University, 06800 Ankara, Turkey;1. Physics Department, Institute for Advanced Studies in Basic Sciences, Zanjan, Iran;2. Optics & Photonics Research Center, Institute for Advanced Studies in Basic Sciences, Zanjan, Iran;3. University of Paderborn, Faculty of Science, Applied Physics, D-33095 Paderborn, Germany |
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| Abstract: | Besides dispersion engineering, idler-band distributed fiber loss provides a new synthesis freedom to flatten and broaden the gain spectrum for a fiber-optic parametric amplifier. This interesting phenomenon is based on the fact that the power balance between signal and idler is broken by idler loss, which changes the power conversion process in four-wave-mixing. The pump-to-signal conversion efficiency is kept unchanged in spite of the loss. |
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