Laser, optical and thermomechanical properties of Yb-doped fluorapatite

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

DOI:https://doi.org/10.1109/3.272077· OSTI ID:7043760

Payne, S A; Smith, L K; DeLoach, L D; Kway, W L; Tassano, J B ^[1]

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1. Lawrence Livermore National Lab., CA (United States)

The laser performance of Yb-doped fluorapatite (Ca[sub 5](PO[sub 4])[sub 3]F or FAP), is assessed by employing a Ti:sapphire laser operating at 905 nm as the pump source. The authors have measured slope efficiencies to be as high as 79%; the residual decrement from the quantum defect-limited efficiency of 87% is accounted for by the presence of passive loss at the 1,043-nm laser wavelength. The important spectral properties of Yb:FAP were evaluated, including the absorption and emission cross sections, excited-state lifetime, and ground-state energy-level splitting. The emission and absorption cross sections of Yb[sup 3+] in FAP are found to be substantially larger than those of other Yb-doped media. The thermal, physical, and optical properties of the FAP host are reported as well.

• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 7043760
• Journal Information: IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (United States), Vol. 30:1; ISSN 0018-9197
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
LASER MATERIALS
PHYSICAL PROPERTIES
SOLID STATE LASERS
APATITES
DOPED MATERIALS
FLUORINE COMPOUNDS
OPTICAL PUMPING
PERFORMANCE
QUANTUM EFFICIENCY
YTTERBIUM IONS
CHARGED PARTICLES
EFFICIENCY
HALOGEN COMPOUNDS
IONS
LASERS
MATERIALS
MINERALS
PHOSPHATE MINERALS
PUMPING
426002* - Engineering- Lasers & Masers- (1990-)