Comparative study of tunable room-temperature laser operation in the 900-1100-nm range: LiF:F2+ and Ti3+:sapphire.
Appl Opt
; 39(24): 4320-6, 2000 Aug 20.
Article
en En
| MEDLINE
| ID: mdl-18350016
ABSTRACT
We report on a comparative evaluation of efficient room-temperature solid-state lasers based on Tisapphire and LiFF(2)(+) operating in the 900-1100-nm range. LiFF(2)(+) lasers are shown to operate with substantially lower threshold, broader tuning, and higher output pulse energies. The shorter fluorescence lifetime in LiFF(2)(+) leads to higher peak output powers and a considerable reduction in buildup-time fluctuations. The main limitations on LiFF(2)(+) laser operation are identified as amplified spontaneous emission (ASE) and long-term thermal degradation of the color centers. ASE restricts the tuning range, slope efficiency, and bandwidth of the LiFF(2)(+) laser for high pump intensity, but broader tuning is achieved with longer pump pulses. The beam quality of the LiFF(2)(+) laser is comparable with that of the Tisapphire laser.
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Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
Appl Opt
Año:
2000
Tipo del documento:
Article
País de afiliación:
Nueva Zelanda