Nonreciprocal Coupling in Asymmetric Dual-Core Photonic Crystal Fibres

Chin. Phys. Lett.

2004, Vol. 21

Issue (8): 1542-1544 DOI:

Original Articles

Nonreciprocal Coupling in Asymmetric Dual-Core Photonic Crystal Fibres

ZHANG Lin;YANG Chang-Xi

State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing 100084

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ZHANG Lin, YANG Chang-Xi 2004 Chin. Phys. Lett. 21 1542-1544

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Abstract The photonic crystal fibre with asymmetric dual cores is shown to attain strongly nonreciprocal coupling of the lightwave propagating along the fibre, for the first time to our knowledge. It is found that the coupling properties can be quite different when the incident position is changed. This kind of fibre could have potential for unidirectional coupler applications in fibre-optic local and metropolitan area networks. We also examine the polarization and wavelength dependence of the coupling nonreciprocity in the asymmetric dual-core photonic crystal fibres.

Keywords: 42.70.Qs 42.81.Qb 42.81.Uv

Published: 01 August 2004

PACS:	42.70.Qs	(Photonic bandgap materials)
	42.81.Qb	(Fiber waveguides, couplers, and arrays)
	42.81.Uv	(Fiber networks)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2004/V21/I8/01542

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