title: Optical orthogonal frequency division multiplexing demultiplexer using slab star coupler-based optical discrete Fourier transform circuit.
abstract: We demonstrate an optical orthogonal frequency division multiplexing (OFDM) demultiplexer with an optical discrete Fourier transform circuit fabricated using silica planar lightwave circuit technology. This compact device can process an arbitrary number of subcarriers. The operation of a ten-channel device is demonstrated by demultiplexing a 100 Gbit/s (10 subcarrier × 10 Gbits/s) OFDM signal. We also discuss a main factor affecting characteristics degradation of the device.
authors.affiliation: NTT Photonics Laboratories, NTT Corporation, 3-1 Morinosato Wakamiya, Atsugi, Kanagawa 243-0198, Japan. takiguchi.koichi@lab.ntt.co.jp
authors.forename: Koichi
authors.initials: K
authors.lastname: Takiguchi
authors.forename: Tsutomu
authors.initials: T
authors.lastname: Kitoh
authors.forename: Atsushi
authors.initials: A
authors.lastname: Mori
authors.forename: Manabu
authors.initials: M
authors.lastname: Oguma
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Takahashi