title: Cross-phase-modulation-based wavelength conversion using intersubband transition in InGaAs/AlAs/AlAsSb coupled quantum wells.
abstract: We report an ultrafast cross phase modulation (XPM) effect in intersubband transition (ISBT) of InGaAs/AlAs/AlAsSb coupled quantum wells, where the ISBT absorption of a transverse-magnetic mode pump signal induces phase modulation of a transverse-electric mode probe signal. Using waveguide-type ISBT devices, we have achieved XPM-based 10 Gbit/s wavelength conversion with a power penalty of 2.53 dB. Also, we propose XPM-based signal processing circuits for gate switching and modulation format conversion.
authors.affiliation: National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan. h.tsuchida@aist.go.jp
authors.forename: Hidemi
authors.initials: H
authors.lastname: Tsuchida
authors.forename: Takasi
authors.initials: T
authors.lastname: Simoyama
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Ishikawa
authors.forename: Teruo
authors.initials: T
authors.lastname: Mozume
authors.forename: Masanori
authors.initials: M
authors.lastname: Nagase
authors.forename: Jun-ichi
authors.initials: J
authors.lastname: Kasai