title: Liquid-crystal-on-silicon-based optical add/drop multiplexer for orbital-angular-momentum-multiplexed optical links.
abstract: We designed an optical add/drop multiplexer for orbital-angular-momentum (OAM)-multiplexed data links by taking advantage of the ring-shaped intensity profile of OAM beams. We demonstrated adding/dropping a single OAM beam from three multiplexed OAM beams using liquid-crystal-on-silicon-based diffraction optical elements. For multiplexed OAM beams carrying 100 Gbit/s quadrature phase-shift-keying data, a power penalty of <2 dB is observed to achieve a bit-error rate of 2.0×10(-3) for each channel of the add/drop multiplexer.
authors.forename: Hao
authors.initials: H
authors.lastname: Huang
authors.forename: Yang
authors.initials: Y
authors.lastname: Yue
authors.forename: Yan
authors.initials: Y
authors.lastname: Yan
authors.forename: Nisar
authors.initials: N
authors.lastname: Ahmed
authors.forename: Yongxiong
authors.initials: Y
authors.lastname: Ren
authors.forename: Moshe
authors.initials: M
authors.lastname: Tur
authors.forename: Alan E
authors.initials: AE
authors.lastname: Willner