Characterization of an Yb:YAG ceramic waveguide laser, fabricated by the direct femtosecond-laser writing technique

被引:54
|
作者
Calmano, T. [1 ]
Paschke, A. -G. [1 ]
Siebenmorgen, J. [1 ]
Fredrich-Thornton, S. T. [1 ]
Yagi, H. [2 ]
Petermann, K. [1 ]
Huber, G. [1 ]
机构
[1] Inst Laser Phys, D-22761 Hamburg, Germany
[2] Konoshima Chem Co Ltd, Takuma Works, Takuma, Kagawa 7691103, Japan
来源
APPLIED PHYSICS B-LASERS AND OPTICS | 2011年 / 103卷 / 01期
关键词
WRITTEN; GLASS; CRYSTAL; SILICA; OUTPUT; PULSES; POWER;
D O I
10.1007/s00340-011-4485-4
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Using the direct femtosecond-laser writing technique tracks of modified material were written in an Yb(15%):YAG ceramic. Due to a stress-induced change of the refractive index between two parallel tracks waveguiding was achieved in channels between the tracks. Laser oscillation of these channel waveguides at a wavelength of 1030 nm was demonstrated with a maximum output power of 0.7 W. The investigation of two different outcoupling transmissions of 99% and 91% revealed that for the higher output coupling the slope efficiency is 35%, which is much lower in comparison to the case of lower output coupling with a slope efficiency of 65%. This effect may be explained by inversion dependent loss mechanisms.
引用
收藏
页码:1 / 4
页数:4
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