Mode excitation in a multimode optical-fibre waveguide
For normal incidence of a Gaussian beam on a multimode optical fibre, theory predicts that only HE(1m) modes are excited, and this is confirmed experimentally for a liquid-core fibre of normalised frequency v = 125. Discrete-mode propagation is observed, indicating that the amount of mode conversion...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
1973.
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| Subjects: | |
| Online Access: | Get fulltext |
| Summary: | For normal incidence of a Gaussian beam on a multimode optical fibre, theory predicts that only HE(1m) modes are excited, and this is confirmed experimentally for a liquid-core fibre of normalised frequency v = 125. Discrete-mode propagation is observed, indicating that the amount of mode conversion due to fibre imperfections is thus very small. |
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