Infrared and Laser Engineering, Volume. 49, Issue 12, 20201062(2020)
2.86 μm lasing in Ho3+/Pr3+ codoped fluoroaluminate glass fiber (Invited)
Fluoroaluminate, fluoroindate and fluorozirconate glass samples were prepared by using melt-quenching method, their abilities of resistance to deliquescence were studied by water treatment experiment, proving that the fluoroaluminate glass had better stability than the others. Thus Ho3+/Pr3+ codoped fluoroaluminate glasses with different concentrations were fabricated, the properties of spectral transmittance were measured, showing a high transmittance and wide transmission window. Under the pump of an 1150 nm Raman laser, the emission spectra were obtained for analyzing the emitting mechanism. 2 Ho3+/0.2 Pr3+ codoped fluoroaluminate glass preform were fabricated by suction method and fiber by rod-in-tube method. Using the cutback method, the loss of the fiber at 793 nm was 1.8 dB/m. By using the 1150 nm Raman laser as pump source, a 2.865 μm lasing with output power as high as 207 mW were detected in an 8.6 cm-long fluoroaluminate glass fiber, its slope efficiency was 11.4%. The above research results show that fluoroaluminate glass fiber is a gain medium material that can be used to develop stable mid-infrared fiber lasers.
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Jiquan Zhang, Mo Liu, Niannian Xu, Shijie Jia, Shunbin Wang, Pengfei Wang. 2.86 μm lasing in Ho3+/Pr3+ codoped fluoroaluminate glass fiber (Invited)[J]. Infrared and Laser Engineering, 2020, 49(12): 20201062
Category: Advanced Laser Technology
Received: Sep. 20, 2020
Accepted: --
Published Online: Jan. 14, 2021
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