Optical amplification in Er{sup 3+}-doped transparent Ba{sub 2}NaNb{sub 5}O{sub 15} single crystal at 850 nm

Journal Article · Tue Dec 01 04:00:00 EST 2009 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.3267155· OSTI ID:21359366

Haro-Gonzalez, P; Martin, I R; Lahoz, F; Gonzalez-Perez, S ^[1]; Cavalli, E ^[2]; Capuj, N E ^[3]

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1. Departamento de Fisica Fundamental y Experimental, Electronica y Sistemas, University of La Laguna, 38206 La Laguna, Tenerife (Spain)
2. Dipartimento di Chimica Generale ed Inorganica, Chimica Analitica e Chimica Fisica, Universita di Parma, Viale Usberti 17/a, 43100 Parma (Italy)
3. Departamento de Fisica Basica, University of La Laguna, 38206 La Laguna, Tenerife (Spain)

Positive optical gain around 5 cm{sup -1} (approx21 dB/cm) has been observed in Er{sup 3+}-doped Ba{sub 2}NaNb{sub 5}O{sub 15} single crystal using a pump and probe experimental setup. High power laser pulses at 532 nm have been used as the pump source in order to strongly populate the {sup 4}S{sub 3/2}({sup 2}H{sub 11/2}) levels of the Er{sup 3+} ions due to ground state absorption. Low signal beam cw laser radiation at 850 nm has been used as the probe beam to stimulate the emission associated with the {sup 4}S{sub 3/2}({sup 2}H{sub 11/2})->{sup 4}I{sub 13/2} electronic transition of the Er{sup 3+} ions. The process has been modelized as a four level system, and its population has been analyzed and simulated in order to study the gain dynamics. Optical amplification of the probe signal has been observed during the first 60 mus, which represents a good agreement between the measured lifetime of the {sup 4}S{sub 3/2}({sup 2}H{sub 11/2}) levels and the reported simulation.

• OSTI ID: 21359366
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 11 Vol. 106; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ABSORPTION
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHARGED PARTICLES
CRYSTALS
DOPED MATERIALS
ELECTROMAGNETIC RADIATION
EMISSION
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
ERBIUM IONS
GROUND STATES
IONS
LASER RADIATION
LASERS
LUMINESCENCE
MATERIALS
MONOCRYSTALS
NIOBATES
NIOBIUM COMPOUNDS
OXYGEN COMPOUNDS
PHOTOLUMINESCENCE
PHOTON EMISSION
RADIATIONS
REFRACTORY METAL COMPOUNDS
SIMULATION
SODIUM COMPOUNDS
SORPTION
STIMULATED EMISSION
TRANSITION ELEMENT COMPOUNDS