Investigation on the slow-light characteristics of nonlinear Bragg gratings based on optical power control

CHEN Jianjun; LI Linfu

doi:10.7510/jgjs.issn.1001-3806.2015.02.017

To control the speed of light to achieve all-optical router and all-optical buffer in optical fiber communication network, the transmission model of coupled mode is constructed. By utilizing the modified time-domain transfer matrix method, the slow-light characteristics of nonlinear fiber Bragg gratings(NLBG) have been studied numerically based on optical power control. The results show that the photonic stopgap critically depends on the power of light and the variation of input power can effectively change the group velocity of light. Considering the case that the output pulse is not broadened, slow-light systems can generally obtain an output pulse delay time beyond 100ps. Furthermore, for the fixed input power, changing the length of NLBG can observably influence the group velocity of light.

Investigation on the slow-light characteristics of nonlinear Bragg gratings based on optical power control

Corresponding author: LI Linfu, fulin369@126.com

1. School of Medical Engineering, Xinjiang Medical University, Urumqi 830011, China;

2. School of Information Engineering, Guizhou Minzu University, Guiyang 550025, China

Received Date: 2014-03-24

Accepted Date: 2014-04-30

Available Online: 2015-03-25

Abstract: To control the speed of light to achieve all-optical router and all-optical buffer in optical fiber communication network, the transmission model of coupled mode is constructed. By utilizing the modified time-domain transfer matrix method, the slow-light characteristics of nonlinear fiber Bragg gratings(NLBG) have been studied numerically based on optical power control. The results show that the photonic stopgap critically depends on the power of light and the variation of input power can effectively change the group velocity of light. Considering the case that the output pulse is not broadened, slow-light systems can generally obtain an output pulse delay time beyond 100ps. Furthermore, for the fixed input power, changing the length of NLBG can observably influence the group velocity of light.

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Reference (18)

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Investigation on the slow-light characteristics of nonlinear Bragg gratings based on optical power control

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