Multifrequency room-temperature continuous diode and Ar* laser-pumped Er/sup 3 +/ laser emission between 2. 66 and 2. 85. mu. m

Journal Article · Mon Feb 20 04:00:00 EST 1989 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.100885· OSTI ID:6474869

Auzel, F; Hubert, S; Meichenin, D

cw pumped laser emission on six different wavelengths is obtained for the first time in a LiYF/sub 4/:15% Er/sup 3 +/ crystal at room temperature under diode laser excitation for 2.66, 2.716, 2.81 ..mu..m emissions and under argon ion laser excitation for 2.77, 2.81, 2.84, 2.85 ..mu..m emissions. Threshold of 5 mW absorbed power at 0.795 ..mu..m (diode) is obtained for the 2.81 ..mu..m wavelength. Time and power evolution of the laser emissions are presented. The type of up-conversion taking place during 2.81 ..mu..m laser emission is shown to be of the addition of photons by energy transfer (APTE) type involving a two-photon summation which depopulates the /sup 4/I/sub 11//sub ///sub 2/ rather than the /sup 4/I/sub 13//sub ///sub 2/ state as up to now believed.

• Research Organization: Centre National d'Etudes des Telecommunications, 196 avenue Henri Ravera, 92220 Bagneux, France
• OSTI ID: 6474869
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 54:8; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ALKALI METAL COMPOUNDS
ARGON IONS
CHARGED PARTICLES
DATA
ELECTROMAGNETIC RADIATION
ENERGY
ERBIUM IONS
EXPERIMENTAL DATA
FLUORIDES
FLUORINE COMPOUNDS
GAS LASERS
HALIDES
HALOGEN COMPOUNDS
INFORMATION
INFRARED RADIATION
IONS
LASER RADIATION
LASERS
LITHIUM COMPOUNDS
LITHIUM FLUORIDES
LITHIUM HALIDES
NUMERICAL DATA
OPERATION
OPTICAL PUMPING
POWER
PUMPING
RADIATIONS
SOLID STATE LASERS
THRESHOLD ENERGY
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM FLUORIDES