Analytic Solution for Cascaded Long-Period Fiber Gratings (Joint Special Issue on Recent Progress in Optoelectronics and Communications)
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概要
- 論文の詳細を見る
The analytic expression for the transmission spectrum of cascaded long-period fiber gratings is presented ina closed form. When several identical gratings are cascaded inseries with a regular distance, the transmission spectrum is revealed to have a series of regularly spaced peaks, suitable for multi-channel filters. The analytic solution is obtained by diagonalizing the transfer matrix of each grating unit that is composed of a single grating and a grating-free region between adjacent gratings. The spectrum of the device is simply described with the number of cascaded gratings and a single parameter that has the information of the phase difference between the modes. With the derived equation, the spectral behaviors of the proposed deviceare investigated. The intensity of each peak can be controlled by adjusting the strength of a single grating. The separation between adjacent gratings determines the spacing between the peaks. The finesse of the peaks can be increased by cascading more gratings. The derived analytic results are compared with the known results of paired gratings and phase-shifted gratings.
- 社団法人電子情報通信学会の論文
- 2001-05-01
著者
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LEE Byeong
Department of Information and Communications, Gwangju Institute of Science and Technology (GIST)
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Kim Y‐j
Hynix Semiconductor Inc. Ichon Kor
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KIM Young-Jae
Department of Pediatric Dentistry, School of Dentistry, Seoul National University
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Chung Y
Kyungpook National Univ. Daegu Kor
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Han Won-taek
Department Of Information And Communications Kwangju Institute Of Science And Technology
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Lee Byeong
Department Of Information And Communications Kwangju Institute Of Science And Technology
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Lee Byeong
Department Of Information And Communications Gwangju Institute Of Science And Technology
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Kim Young-jae
Department Of Information And Communications Kwangju Institute Of Science And Technology
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PAEK Un-Chul
Department, of Information and Communications, Kwangju Institute of Science and Technology
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CHUNG Youngjoo
Department, of Information and Communications, Kwangju Institute of Science and Technology
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PAEK Un-Chul
Department of information and Communications, Kwangju Institute of Science and Technology
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