title: Energy-efficient 0.26-Tb/s coherent-optical OFDM transmission using photonic-integrated all-optical discrete Fourier transform.
abstract: We propose a novel energy-efficient coherent-optical OFDM transmission scheme based on hybrid optical-electronic signal processing. We demonstrate transmission of a 0.26-Tb/s OFDM superchannel, consisting of 13 x 20-Gb/s polarization-multiplexed QPSK subcarrier channels, over 400-km standard single-mode fiber (SSMF) with BER less than 6.3x10(-4) using all-optical Fourier transform processing and electronic 7-tap blind digital equalization per subchannel. We further explore long-haul transmission over up to 960 km SSMF and show that the electronic signal processing is capable of compensating chromatic dispersion up to 16,000 ps/nm using only 15 taps per subchannel, even in the presence of strong inter-carrier interference.
authors.affiliation: Bell Laboratories, Alcatel-Lucent, Holmdel, New Jersey 07733, USA. inuk.kang@alcatel-lucent.com
authors.forename: I
authors.initials: I
authors.lastname: Kang
authors.forename: X
authors.initials: X
authors.lastname: Liu
authors.forename: S
authors.initials: S
authors.lastname: Chandrasekhar
authors.forename: M
authors.initials: M
authors.lastname: Rasras
authors.forename: H
authors.initials: H
authors.lastname: Jung
authors.forename: M
authors.initials: M
authors.lastname: Cappuzzo
authors.forename: L T
authors.initials: LT
authors.lastname: Gomez
authors.forename: Y F
authors.initials: YF
authors.lastname: Chen
authors.forename: L
authors.initials: L
authors.lastname: Buhl
authors.forename: S
authors.initials: S
authors.lastname: Cabot
authors.forename: J
authors.initials: J
authors.lastname: Jaques
mesh_terms: D004581:Electronics / Q000295:instrumentation* / Q000379:methods*; D004867:Equipment Design; D005336:Fiber Optic Technology / Q000295:instrumentation* / Q000379:methods*; D005583:Fourier Analysis; D008962:Models, Theoretical