TY - JOUR
T1 - Wavelength Demultiplexer Designs Operating over Multiple Spatial Modes of a Rectangular Waveguide
AU - Blau, Miri
AU - Marom, Dan M.
N1 - Publisher Copyright:
© 1995-2012 IEEE.
PY - 2020/7/1
Y1 - 2020/7/1
N2 - Wavelength demultiplexers are instrumental in wavelength division multiplexing (WDM) communications. In advance of space-division multiplexing (SDM) WDM communications, we investigate wavelength multiplexer/demultiplexer designs operating over multiplexed spatial modes simultaneously, when the modes are arranged along one transverse direction of a rectangular waveguide. The demultiplexer waveguides' modes match those of rectangular core fibers, enabling simple and efficient edge-coupling. We describe the challenge of demultiplexing mode division multiplexed (MDM) channels, and suggest guided optics solutions for its implementation. We analyze the spatial-spectral interplay at output waveguide coupling due to mode dependent phase delays in arrayed waveguide grating router demultiplexer design, and offer low mode dependent loss solutions. The proposed schemes allow for efficient and compact MDM-enabled WDM multiplexing, paving the way to SDM-WDM communication networks.
AB - Wavelength demultiplexers are instrumental in wavelength division multiplexing (WDM) communications. In advance of space-division multiplexing (SDM) WDM communications, we investigate wavelength multiplexer/demultiplexer designs operating over multiplexed spatial modes simultaneously, when the modes are arranged along one transverse direction of a rectangular waveguide. The demultiplexer waveguides' modes match those of rectangular core fibers, enabling simple and efficient edge-coupling. We describe the challenge of demultiplexing mode division multiplexed (MDM) channels, and suggest guided optics solutions for its implementation. We analyze the spatial-spectral interplay at output waveguide coupling due to mode dependent phase delays in arrayed waveguide grating router demultiplexer design, and offer low mode dependent loss solutions. The proposed schemes allow for efficient and compact MDM-enabled WDM multiplexing, paving the way to SDM-WDM communication networks.
KW - Fiber optics and optical communications
KW - multiplexing
KW - planar lightwave circuits
UR - http://www.scopus.com/inward/record.url?scp=85069529900&partnerID=8YFLogxK
U2 - 10.1109/JSTQE.2019.2909166
DO - 10.1109/JSTQE.2019.2909166
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AN - SCOPUS:85069529900
SN - 0792-1233
VL - 26
JO - IEEE Journal of Selected Topics in Quantum Electronics
JF - IEEE Journal of Selected Topics in Quantum Electronics
IS - 4
M1 - 8719968
ER -