title: Efficient optical image amplifier using periodically poled lithium niobate.
abstract: An efficient optical image amplification scheme has been proposed and demonstrated using the quasi-phase-matched optical parametric amplifier. Pumped with the 152 μJ per pulse pump laser at 532 nm, the input weak infrared image at 1064 nm with 3.5 pJ energy is amplified with a 55 dB optical gain using only a 3 mm long MgO-doped periodically poled lithium niobate (MgO:PPLN) crystal. A spatial resolution of 17 lines/mm on the surface of the PPLN crystal is obtained. Further numerical simulation indicates that our scheme enables efficient image enhancement with a long pulsed pumping source, such as nanosecond lasers.
authors.forename: Wei
authors.initials: W
authors.lastname: Zhao
authors.forename: Jing
authors.initials: J
authors.lastname: Yang
authors.forename: JingYuan
authors.initials: J
authors.lastname: Zhang
authors.forename: WeiWei
authors.initials: W
authors.lastname: Wang
authors.forename: TengFei
authors.initials: T
authors.lastname: Zhang
authors.forename: Lin
authors.initials: L
authors.lastname: Han
authors.forename: DaFu
authors.initials: D
authors.lastname: Cui
authors.forename: QinJun
authors.initials: Q
authors.lastname: Peng
authors.forename: ZuYan
authors.initials: Z
authors.lastname: Xu
mesh_terms: D000669:Amplifiers, Electronic; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007089:Image Enhancement / Q000295:instrumentation*; D054023:Lasers, Semiconductor; D009556:Niobium / Q000737:chemistry*; D055096:Optical Devices; D010087:Oxides / Q000737:chemistry*; D041622:Tomography, Optical / Q000295:instrumentation*
chemical_list: D010087:Oxides; D009556:Niobium; C091692:lithium niobate