A novel complex long-period-grating-assisted coupler

Xiaowei Dong; Li Pei; Shaohua Lu; Suchun Feng; Ou Xu; Ruifeng Zhao

doi:10.1117/12.742505

21 November 2007 A novel complex long-period-grating-assisted coupler

Xiaowei Dong, Li Pei, Shaohua Lu, Suchun Feng, Ou Xu, Ruifeng Zhao

Proceedings Volume 6781, Passive Components and Fiber-based Devices IV; 67810N (2007) https://doi.org/10.1117/12.742505
Event: Asia-Pacific Optical Communications, 2007, Wuhan, China

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%.

Citation Download Citation

Xiaowei Dong, Li Pei, Shaohua Lu, Suchun Feng, Ou Xu, and Ruifeng Zhao "A novel complex long-period-grating-assisted coupler", Proc. SPIE 6781, Passive Components and Fiber-based Devices IV, 67810N (21 November 2007); https://doi.org/10.1117/12.742505

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