Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/647178
Title: The Numerical Modeling of 3D Microfiber Couplers and Resonators
Authors: Guanghui Wang;Wenxiang Jiao;Yuming Dong;Lei Wei;Dora Juan Juan Hu;Ping Shum;Xuping Zhang
subject: loop coupler|polarization dependence|Microfiber|Knot coupler|Finite Difference Time Domain (FDTD)
Year: 2016
Publisher: IEEE
Abstract: We numerically investigate the optical properties of three-dimensional (3D) microfiber/nanofiber (MNF) couplers and resonators, by using the finite-difference time domain method. It is the first time that the polarization-dependent transmission properties of 3D MNF couplers and resonators are investigated numerically. For the knot coupler, the twisted structure contributes to the inter-polarization coupling, and the envelope of intraand inter-polarization coupling coefficients, respectively, has the trend as a (cosc)2 or (sinc)2 function. For the loop resonator, the inter-polarization coupling coefficients are relatively small. However, the coupling coefficients for both polarization states are discriminated obviously. The high Q-factor resonance spectrum in one polarized state may be overwhelmed by that of the other. We also investigate the mechanism of resonance spectrum splitting, and find out that the inter-polarization coupling at the coupler region degenerates the resonance spectrum and gives rise to the splitting. The results provide guidance to design 3-D MNF devices, for example, high Q-factor resonators.
URI: http://localhost/handle/Hannan/179621
http://localhost/handle/Hannan/647178
ISSN: 1041-1135
1941-0174
volume: 28
issue: 15
Appears in Collections:2016

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Title: The Numerical Modeling of 3D Microfiber Couplers and Resonators
Authors: Guanghui Wang;Wenxiang Jiao;Yuming Dong;Lei Wei;Dora Juan Juan Hu;Ping Shum;Xuping Zhang
subject: loop coupler|polarization dependence|Microfiber|Knot coupler|Finite Difference Time Domain (FDTD)
Year: 2016
Publisher: IEEE
Abstract: We numerically investigate the optical properties of three-dimensional (3D) microfiber/nanofiber (MNF) couplers and resonators, by using the finite-difference time domain method. It is the first time that the polarization-dependent transmission properties of 3D MNF couplers and resonators are investigated numerically. For the knot coupler, the twisted structure contributes to the inter-polarization coupling, and the envelope of intraand inter-polarization coupling coefficients, respectively, has the trend as a (cosc)2 or (sinc)2 function. For the loop resonator, the inter-polarization coupling coefficients are relatively small. However, the coupling coefficients for both polarization states are discriminated obviously. The high Q-factor resonance spectrum in one polarized state may be overwhelmed by that of the other. We also investigate the mechanism of resonance spectrum splitting, and find out that the inter-polarization coupling at the coupler region degenerates the resonance spectrum and gives rise to the splitting. The results provide guidance to design 3-D MNF devices, for example, high Q-factor resonators.
URI: http://localhost/handle/Hannan/179621
http://localhost/handle/Hannan/647178
ISSN: 1041-1135
1941-0174
volume: 28
issue: 15
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7448442.pdf905.41 kBAdobe PDFThumbnail
Preview File
Title: The Numerical Modeling of 3D Microfiber Couplers and Resonators
Authors: Guanghui Wang;Wenxiang Jiao;Yuming Dong;Lei Wei;Dora Juan Juan Hu;Ping Shum;Xuping Zhang
subject: loop coupler|polarization dependence|Microfiber|Knot coupler|Finite Difference Time Domain (FDTD)
Year: 2016
Publisher: IEEE
Abstract: We numerically investigate the optical properties of three-dimensional (3D) microfiber/nanofiber (MNF) couplers and resonators, by using the finite-difference time domain method. It is the first time that the polarization-dependent transmission properties of 3D MNF couplers and resonators are investigated numerically. For the knot coupler, the twisted structure contributes to the inter-polarization coupling, and the envelope of intraand inter-polarization coupling coefficients, respectively, has the trend as a (cosc)2 or (sinc)2 function. For the loop resonator, the inter-polarization coupling coefficients are relatively small. However, the coupling coefficients for both polarization states are discriminated obviously. The high Q-factor resonance spectrum in one polarized state may be overwhelmed by that of the other. We also investigate the mechanism of resonance spectrum splitting, and find out that the inter-polarization coupling at the coupler region degenerates the resonance spectrum and gives rise to the splitting. The results provide guidance to design 3-D MNF devices, for example, high Q-factor resonators.
URI: http://localhost/handle/Hannan/179621
http://localhost/handle/Hannan/647178
ISSN: 1041-1135
1941-0174
volume: 28
issue: 15
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7448442.pdf905.41 kBAdobe PDFThumbnail
Preview File