title: Efficient 494 mW sum-frequency generation of sodium resonance radiation at 589 nm by using a periodically poled Zn:LiNbO3 ridge waveguide.
abstract: A solid-state-laser based single-frequency 589 nm light source that can be easily used in the laboratory is needed for sodium spectroscopy studies and cold sodium atom experiments. This paper shows that by using a periodically poled Zn-doped LiNbO(3) ridge waveguide for sum-frequency generation, we can obtain a high conversion efficiency to 589 nm light from two sub-watt 1064 and 1319 nm Nd:YAG lasers via a simple single pass wavelength conversion process without employing an enhancement cavity. A 494 mW light at 589 nm is generated and achieves overall conversion efficiency from the laser power of 41%. Excellent long-term stability of output power is obtained and its standard deviation is characterized to be 0.09%.
authors.affiliation: NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato Wakamiya, Atsugi-shi, Kanagawa 243-0198, Japan. nisikawa@will.brl.ntt.co.jp
authors.forename: Tadashi
authors.initials: T
authors.lastname: Nishikawa
authors.forename: Akira
authors.initials: A
authors.lastname: Ozawa
authors.forename: Yoshiki
authors.initials: Y
authors.lastname: Nishida
authors.forename: Masaki
authors.initials: M
authors.lastname: Asobe
authors.forename: Feng-Lei
authors.initials: FL
authors.lastname: Hong
authors.forename: Theodor W
authors.initials: TW
authors.lastname: Hänsch
mesh_terms: D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D053844:Lasers, Solid-State; D008029:Lighting / Q000295:instrumentation*; D009556:Niobium; D010087:Oxides; D012031:Refractometry / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012964:Sodium; D015032:Zinc
chemical_list: D010087:Oxides; D009556:Niobium; C091692:lithium niobate; D012964:Sodium; D015032:Zinc