Few mode fibers with low DMD slope realizing zero-DMD in wide wavelength range for MIMO processing
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説明
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 LP 01 and LP 11 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 μm 2 for LP 01 mode and 160 μm 2 for LP 11 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.
収録刊行物
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- SPIE Proceedings
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SPIE Proceedings 9009 90090B-, 2013-12-24
SPIE
