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

被引：55

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

页码：1 / 4

页数：4

共 28 条

[1] Ultrafast laser writing of optical waveguides in ceramic Yb:YAG: a study of thermal and non-thermal regimes [J].