title: High-gain, wide-dynamic-range parametric interaction in Mg-doped LiNbO3 quasi-phase-matched adhered ridge waveguide.
abstract: With recent developments and optimizations for quasi-phase-matched adhered ridge waveguide (QPM-ARW), outstanding performances containing efficient amplification were demonstrated by difference frequency generation (DFG) and optical parametric amplification (OPA). A maximum channel conversion efficiency of +7.6 dB (570%) was achieved in a telecommunication band using a 50 mm-long device, when coupling with 160 mW pump. Simultaneously, the input signal was amplified up to +9.5 dB (890%).
authors.affiliation: National Institute for Materials Science, Tsukuba, Ibaraki, Japan.
authors.forename: Rai
authors.initials: R
authors.lastname: Kou
authors.forename: Sunao
authors.initials: S
authors.lastname: Kurimura
authors.forename: Kiyofumi
authors.initials: K
authors.lastname: Kikuchi
authors.forename: Akihiro
authors.initials: A
authors.lastname: Terasaki
authors.forename: Hirochika
authors.initials: H
authors.lastname: Nakajima
authors.forename: Katsutoshi
authors.initials: K
authors.lastname: Kondou
authors.forename: Junichiro
authors.initials: J
authors.lastname: Ichikawa