All-Fiber Tunable LP<sub>11</sub> Mode Rotator With 360° Range
We propose and experimentally demonstrate an all-fiber tunable <inline-formula><tex-math notation="LaTeX"> ${\rm{LP}}_{11}$</tex-math></inline-formula> mode rotator with 360° range, based on the bending and twisting of the two-mode fiber (TMF). A theoreti...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2016-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/7559742/ |
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| Summary: | We propose and experimentally demonstrate an all-fiber tunable <inline-formula><tex-math notation="LaTeX"> ${\rm{LP}}_{11}$</tex-math></inline-formula> mode rotator with 360° range, based on the bending and twisting of the two-mode fiber (TMF). A theoretical model of TMF perturbation and its effect on the spatial pattern of <inline-formula> <tex-math notation="LaTeX">${\rm{LP}}_{11}$</tex-math></inline-formula> mode is put forward. We experimentally characterize the implementation of the <inline-formula><tex-math notation="LaTeX">${\rm{LP}}_{11}$</tex-math> </inline-formula> mode rotator by an all-fiber polarization controller configuration. The results agree well with the theoretical investigations. We are able to demonstrate arbitrary <inline-formula><tex-math notation="LaTeX"> ${\rm{LP}}_{11}$</tex-math></inline-formula> mode rotation with 360° range. The insertion loss is less than 0.4 dB when the operation wavelength is varied from 1540 to 1560 nm. |
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| ISSN: | 1943-0655 |