Evaluation of absorption and emission properties of Yb[sup 3+] doped crystals for laser applications

Journal Article · Thu Apr 01 00:00:00 EST 1993 · IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/3.214504· OSTI ID:6482439

DeLoach, L D; Payne, S A; Chase, L L; Smith, L K; Kway, W L; Krupke, W F ^[1]

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1. Univ. of California, Livermore (United States)

The emission and absorption properties of numerous host crystals doped with Yb[sup 3+] ions have been studied. The hosts which have been selected present a variety of crystal field environments for the ytterbium ion, including fluoride and oxide crystals with six-, seven-, eight-, nine- and twelvefold coordinated substitutional sites. The crystal compounds include LiYF[sub 4], LaF[sub 3], SrF[sub 2], BaF[sub 2], KCaF[sub 3], KY[sub 3]F[sub 10], Rb[sub 2]NaYF[sub 6], BaY[sub 2]F[sub 8], Y[sub 2]SiO[sub 5], Y[sub 3]Al[sub 5]O[sub 12], YAlO[sub 3], LuPO[sub 4], Ca[sub 5](PO[sub 4])[sub 3]F, LiYO[sub 2], and ScBO[sub 3]. Spectral determinations have been made of the resonant absorption and emission cross sections between 850 and 1100 nm, and the emission decay times of the upper laser level have been measured. The emission cross sections have been evaluated using the absorption cross section and principle of reciprocity, and again using the Fuechtbauer-Ladenburg formula. Agreement between the two methods is within 20% for most materials. The results of this survey are discussed in the framework of requirements for an effective diode-pumped Yb[sub 3+] laser system. Ca[sub 5](PO[sub 4])[sub 3]F:Yb is predicted to exhibit the most useful laser properties and is expected to be superior to Y[sub 3]Al[sub 5]O[sub 12]:Yb in many key spectroscopic parameter values.

• OSTI ID: 6482439
• Journal Information: IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (United States), Vol. 29:4; ISSN 0018-9197
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
LASER MATERIALS
ABSORPTION SPECTRA
EMISSION SPECTRA
SOLID STATE LASERS
ALUMINIUM OXIDES
CRYSTAL DOPING
DOPED MATERIALS
FLUORIDES
OPTICAL PUMPING
OXIDES
YTTERBIUM IONS
YTTRIUM OXIDES
ALUMINIUM COMPOUNDS
CHALCOGENIDES
CHARGED PARTICLES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
IONS
LASERS
MATERIALS
OXYGEN COMPOUNDS
PUMPING
SPECTRA
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
426002* - Engineering- Lasers & Masers- (1990-)