Few mode fibers with low DMD slope realizing zero-DMD in wide wavelength range for MIMO processing

R. Maruyama; N. Kuwaki; S. Matsuo; M. Ohashi

doi:10.1117/12.2041731

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1 February 2014 Few mode fibers with low DMD slope realizing zero-DMD in wide wavelength range for MIMO processing

R. Maruyama, N. Kuwaki, S. Matsuo, M. Ohashi

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Proceedings Volume 9009, Next-Generation Optical Communication: Components, Sub-Systems, and Systems III; 90090B (2014) https://doi.org/10.1117/12.2041731
Event: SPIE OPTO, 2014, San Francisco, California, United States

Abstract

We propose two mode optical fibers (TMFs) with minimally low differential modal delay (DMD) slope which are suitable to compensate DMD in wide wavelength range. All fabricated TMFs composed of a graded index core and a depressed inner claddings have low DMD slopes of less than |0.15| ps/km/nm, low optical loss of less than 0.21 dB/km for LP₀₁ and LP₁₁ modes respectively and low mode coupling ratio of less than -35 dB at the wavelength of 1550 nm. All TMFs have the similar effective area of 120 μm² for LP₀₁ mode and 160 μm² for LP₁₁ mode at 1550 nm. Moreover, it is clarified that a DMD compensation transmission line composed of the fabricated TMFs can successfully achieve the DMD of below |4.0| ps/km in the C+L band and mode conversion ratio of less than -30 dB at splice points.

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R. Maruyama, N. Kuwaki, S. Matsuo, and M. Ohashi "Few mode fibers with low DMD slope realizing zero-DMD in wide wavelength range for MIMO processing", Proc. SPIE 9009, Next-Generation Optical Communication: Components, Sub-Systems, and Systems III, 90090B (1 February 2014); https://doi.org/10.1117/12.2041731

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