Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5461015 | Journal of Alloys and Compounds | 2017 | 5 Pages |
Abstract
Nd:GdNbO4 crystal was grown successfully by the Czochralski (CZ) method. The continuous wave (CW) laser operation of Nd:GdNbO4 crystal at 1066 nm was reported for the first time. A maximum output power of 1.076 W with the incident power of 3.28 W was successfully obtained, corresponding to an optical-to-optical conversion efficiency of 32.8% and a slope efficiency of 35.3%. The absorption and fluorescence spectra of the crystal were measured at room temperature. By using the Judd-Ofelt approach, the intensity parameters were calculated to be 6.13 Ã 10â20, 1.56 Ã 10â20, and 2.81 Ã 10â20 cm2, respectively. The large absorption cross section (9.5 Ã 10â20 cm2) and broad absorption band (5 nm) at around 808 nm indicates that Nd:GdNbO4 crystal can be pumped efficiently by laser diodes (LD). The small emission cross section (9.3 Ã 10â20 cm2) and relatively long fluorescence lifetime (178 μs) of Nd3+ demonstrate good energy capacity of Nd:GdNbO4. All the results show that Nd:GdNbO4 crystal is a promising novel laser crystal suitable for LD pumping.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Shoujun Ding, Fang Peng, Qingli Zhang, Jianqiao Luo, Wenpeng Liu, Dunlu Sun, Renqin Dou, Jinyun Gao, Guihua Sun, Maojie Cheng,