Frontiers of Optoelectronics, Volume. 4, Issue 3, 315(2011)
Complex long-period-grating-assisted-coupler and its application in optical signal buffer
By introducing gain/loss perturbation into periodic refractive index modulation, the unified coupled-mode equations and their close-form analytical solutions of complex long-period-grating-assisted-coupler (LPGAC) are deduced. Characteristics of power coupling are investigated and results show that unidirectional nonreciprocal signal transferring can be achieved by matching gain/loss with the refractive index modulation. Utilizing the feature of complex LPGAC, a novel optical signal buffer is proposed and its structure is examined in detail.
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Xiaowei DONG, Weiwei JIANG, Xiaojuan SHENG. Complex long-period-grating-assisted-coupler and its application in optical signal buffer[J]. Frontiers of Optoelectronics, 2011, 4(3): 315
Received: Mar. 11, 2011
Accepted: Apr. 26, 2011
Published Online: Sep. 21, 2012
The Author Email: DONG Xiaowei (way7803@163.com)