Rayleigh-based OTDR with dynamic modal crosstalk suppression
We propose and demonstrate a novel approach for measuring the modal attenuation of the splice loss of a purely LP mode group by using a Rayleigh-based OTDR with a dynamic modal crosstalk (XT) suppression technique for few-mode fibers (FMFs). With the proposed approach, the Brillouin loss interaction...
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| Veröffentlicht in: | Optics express 2019-01, Vol.27 (2), p.783-791 |
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| container_end_page | 791 |
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| container_title | Optics express |
| container_volume | 27 |
| creator | Takahashi, Hiroshi Toge, Kunihiro Oda, Tomokazu Manabe, Tetsuya |
| description | We propose and demonstrate a novel approach for measuring the modal attenuation of the splice loss of a purely LP
mode group by using a Rayleigh-based OTDR with a dynamic modal crosstalk (XT) suppression technique for few-mode fibers (FMFs). With the proposed approach, the Brillouin loss interaction with a Brillouin Stokes beam co-propagating with the OTDR probe removes the modal XT caused at the modal conversion point and suppresses the accumulated modal XT that is detected. A preliminary experiment is demonstrated using spliced FMFs with a core-offset. Experiments revealed that the proposed technique can accurately measure the splice loss variations of a purely LP
mode group. |
| doi_str_mv | 10.1364/OE.27.000783 |
| format | Article |
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| source | DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection |
| title | Rayleigh-based OTDR with dynamic modal crosstalk suppression |
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