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Proceedings Paper

A novel complex long-period-grating-assisted coupler
Author(s): Xiaowei Dong; Li Pei; Shaohua Lu; Suchun Feng; Ou Xu; Ruifeng Zhao
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Paper Abstract

The coupled-mode equations corresponding to a novel complex long-period-grating-assisted coupler (LPGAC), which consists of both the periodic refractive index modulation and gain/loss perturbation, is introduced and the close-form analytical solution is obtained, for the first time to our knowledge. And a unique unidirectional and nonreversible filtering characteristic is achieved by adjusting the gain/loss to match with the refractive index modulation. In addition, the impact of deviations in the grating profile is also evaluated, and the results show that the required device performance can be realized by controlling the amplitude and phase deviation <5%.

Paper Details

Date Published: 21 November 2007
PDF: 6 pages
Proc. SPIE 6781, Passive Components and Fiber-based Devices IV, 67810N (21 November 2007); doi: 10.1117/12.742505
Show Author Affiliations
Xiaowei Dong, Beijing Jiaotong Univ. (China)
Li Pei, Beijing Jiaotong Univ. (China)
Shaohua Lu, Beijing Jiaotong Univ. (China)
Suchun Feng, Beijing Jiaotong Univ. (China)
Ou Xu, Beijing Jiaotong Univ. (China)
Ruifeng Zhao, Beijing Jiaotong Univ. (China)


Published in SPIE Proceedings Vol. 6781:
Passive Components and Fiber-based Devices IV
Ming-Jun Li; Jianping Chen; Satoki Kawanishi; Ian H. White, Editor(s)

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