Investigation of the power coupling of novel wavelength-selective couplers incorporating axially symmetric long-period fibre gratings
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 differ...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Academy of Science of South Africa
2011-05-01
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| Series: | South African Journal of Science |
| Subjects: | |
| Online Access: | http://192.168.0.121/index.php/sajs/article/view/9845 |
| Summary: | 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. |
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| ISSN: | 1996-7489 |