Spatial mode exchange technique using volume holograms with a random optical diffuser for reduction of crosstalk
S Zhang, A Okamoto, T Shiba, H Hayashi, K Ogawa… - Optical Review, 2021 - Springer
In mode-division multiplexing systems, the transmission quality is restricted by the
differential mode delay (DMD). We previously proposed a spatial mode exchange technique
using volume holograms (VHET) to reduce the DMD. VHET can be used for the exchange of
multiple spatial modes with different transmission speeds using a single device. However, in
VHET, incidents of cross-talk (XT) caused by non-target holograms severely degrade the
exchange performance. To address this issue, we propose a spatial mode exchange …
differential mode delay (DMD). We previously proposed a spatial mode exchange technique
using volume holograms (VHET) to reduce the DMD. VHET can be used for the exchange of
multiple spatial modes with different transmission speeds using a single device. However, in
VHET, incidents of cross-talk (XT) caused by non-target holograms severely degrade the
exchange performance. To address this issue, we propose a spatial mode exchange …
Spatial mode exchange technique using volume holograms with a random optical diffuser to reduce modal cross-talks
S Zhang, A Okamoto, T Shiba… - … , Sub-Systems, and …, 2020 - spiedigitallibrary.org
In mode-division multiplexing (MDM) systems, transmission quality is restricted by
differential mode delay (DMD). We have proposed and developed a spatial-mode exchange
technique using volume holograms (VHET) as a leading technology to reduce DMD. VHET
can equilibrate the transmission time of each spatial mode which has different transmission
speeds in a few mode fiber using a volume hologram. This technology enables low signal
distortion and high spectral efficiency, which are indispensable to the long-haul transmission …
differential mode delay (DMD). We have proposed and developed a spatial-mode exchange
technique using volume holograms (VHET) as a leading technology to reduce DMD. VHET
can equilibrate the transmission time of each spatial mode which has different transmission
speeds in a few mode fiber using a volume hologram. This technology enables low signal
distortion and high spectral efficiency, which are indispensable to the long-haul transmission …
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