Observation of 2.7 μm emission from diode-pumped Er3+/Pr3+-codoped fluorophosphate glass.
This work reports the intense emission at 2.7 μm in a Er(3+)/Pr(3+)-codoped fluorophosphate (FP) host glass. This FP glass shows good thermal stability and high transmittance around 3 μm. The emission characteristic and energy transfer upon excitation of a conventional 980 nm laser diode are investigated. The prepared glass possesses higher spontaneous transition probability (22.16s(-1)) along with a larger calculated emission cross section (6.57 ± 0.11) × 10(-21) cm(2) corresponding to the laser transition (4)I(11/2)→(4)I(13/2). In addition, the effect of Pr(3+) codoping on the 2.7 μm photoluminescence in FP glass is demonstrated. Hence, the advantageous spectroscopic characteristics of Er(3+)/Pr(3+)-codoped FP glass together with the outstanding thermal property indicate that this kind of glass may become an attractive host for developing solid-state lasers at around 2.7 μm.
Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China.
Ying
Y
Tian
Rongrong
R
Xu
Liyan
L
Zhang
Lili
L
Hu
Junjie
J
Zhang
D000042:Absorption; D004566:Electrodes; D004871:Erbium / Q000737:chemistry*; D005459:Fluorides / Q000737:chemistry*; D005898:Glass / Q000737:chemistry*; D010710:Phosphates / Q000737:chemistry*; D011221:Praseodymium / Q000737:chemistry*; D013055:Spectrophotometry, Infrared
D010710:Phosphates; C012980:fluorophosphate; D004871:Erbium; D011221:Praseodymium; D005459:Fluorides