Investigation of the power coupling of novel wavelength-selective couplers incorporating axially symmetric long-period fibre gratings

South African Journal of Science

Ronnie Kritzinger¹  Johan Meyer²  Johan Burger³ 

[1] Department of Electrical and Electronic Engineering Science, University of Johannesburg;Department of Electrical and Electronic Engineering Science, University of Johannesburg;National Metrology Institute of South Africa;

关键词: evanescent-field coupling;    wavelength-selective coupler;    long-period fibre grating;    coupling efficiency;    multiplexer;    fibre optics;   

DOI  :  

来源: DOAJ

【 摘 要 】

Evanescent-field coupling was studied experimentally in novel optical-fibre-based wavelength-selective couplers, using axially symmetric long-period fibre grating (LPFG) structures. The coupling characteristics of a wavelength-selective coupler at the resonant wavelength were investigated for different LPFG offset distances. It was shown that the wavelength-selective couplers effectively transferred light power at the LPFG resonant wavelength from one fibre to another. The performance of the couplers was consistent with simulations performed in MATLAB using coupled-mode theory.

【 授权许可】

Unknown