Spectroscopic properties and efficient diode-pumped laser operation of neodymium-doped lanthanum scandium borate

Journal Article · Fri Apr 01 04:00:00 EST 1994 · IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/3.291362· OSTI ID:6929101

Meyn, J P; Jensen, T; Huber, G ^[1]

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1. Univ. Hamburg (Germany). Inst. fuer Laser-Physik

The authors report on the spectroscopic properties and laser performance of Czochralski-grown LaSc[sub 3] (BO[sub 3])[sub 4] (LSB) crystals with high neodymium concentrations up to 2.5 [center dot] 10[sup 21] cm[sup [minus]3]. The low-concentration quenching of the upper laser level of neodymium and the polarization dependence of the spectra indicate that LaSc[sub 3] (BO[sub 3])[sub 4] crystallizes in a huntite-type structure like Nd[sup 3+]:YAl[sub 3](BO[sub 3])[sub 4] (NYAB). With diode laser pumping at 808 nm, a multimode Nd[sup 3+]:LaSc[sub 3](BO[sub 3])[sub 4] (NLSB) laser at 1,063 nm is demonstrated. Optical slope efficiency was 64% with respect to absorbed pump power. The possibility of second-harmonic generation in the laser crystal is discussed.

• OSTI ID: 6929101
• Journal Information: IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (United States) Vol. 30:4; ISSN 0018-9197; ISSN IEJQA7
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
BORATES
BORON COMPOUNDS
CRYSTAL STRUCTURE
DOPED MATERIALS
EMISSION SPECTRA
LANTHANUM COMPOUNDS
LASER MATERIALS
LASERS
MATERIALS
NEODYMIUM LASERS
OXYGEN COMPOUNDS
PERFORMANCE
RARE EARTH COMPOUNDS
SCANDIUM COMPOUNDS
SOLID STATE LASERS
SPECTRA
TRANSITION ELEMENT COMPOUNDS