Experimental Investigation of the Relationship between Inter-core Crosstalk and Q-factor in Multicore DSDM Transmission Lines

Akira Isoda; Takayuki Mizuno; Yutaka Miyamoto

doi:10.1587/comex.2018XBL0051

Akira Isoda, Takayuki Mizuno, Yutaka Miyamoto

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Keywords: Space division multiplexing (SDM), Dense SDM (DSDM), Multicore fiber (MCF), Crosstalk (XT), Crosstalk monitoring

JOURNALS FREE ACCESS Advance online publication

Article ID: 2018XBL0051

DOI https://doi.org/10.1587/comex.2018XBL0051

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The final version of this article with its full bibliographical information is available. To access the article, click here (Vol. 7 (2018), No. 10 pp. 382-387).

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Abstract

We demonstrate the relationship between inter-core crosstalk and Q-factor in a multicore transmission line including a multicore fiber and a multicore amplifier by using an in-service inter-core crosstalk monitoring method we propose. The method estimates inter-core crosstalk by using tones with different wavelengths for each core. We measured Q-factors at the center wavelength of the WDM channel. The measured crosstalk was -20.2 dB and the Q-factor was 5.8 dB after 411.2-km transmission. The Q-factor estimated from the monitored crosstalk was found to closely match the measured value.

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