High brightness diode laser by coupler free grating external cavity spectral beam combining

被引：0
|
作者：
Sun S. [1 ,2 ,3 ]
Tan H. [1 ,2 ]
Meng H. [1 ,2 ]
Guo L. [1 ,2 ]
Gao S. [1 ,2 ]
Wu D. [1 ,2 ]
Xu F. [1 ,2 ,3 ]
机构：
[1] Institute of Applied Electronics, China Academy of Engineering Physics, Mianyang
[2] Key Laboratory of Science and Technology on High Energy Laser, China Academy of Engineering Physics, Mianyang
[3] Gradute School, China Academy of Engineering Physics, Beijing
来源：
Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering | 2019年 / 48卷 / 03期
关键词：
Coupler free; Diode laser; Grating external cavity; Spectral beam combining;
D O I：
10.3788/IRLA201948.0306006
中图分类号：
学科分类号：
摘要：
Spectral beam combining of a broad area diode laser is a promising technique for direct diode laser applications. Grating external cavity spectral beam combination bases on wavelength selection characteristics of the grating and external cavity diode laser technology to achieve the lock of the single emitter spectrum and the combination of all the sub beam combining elements into one output. The beam quality of the output is equivalent to a single beam combining element, and the brightness and power are greatly improved, simultaneously. Based on the coupler free grating external cavity structure, spectral beam combination of a single diode laser short array stripe was realized. The characteristics of spectrum, power and beam quality of the output beam were analyzed. At the pump current of 70 A, a continuous output power of 40.8 W was obtained. The fast and slow axis beam quality were 0.41 mm•mrad and 9.16 mm•mrad (including 95% energy) respectively, the corresponding electro-optic conversion efficiency was 38.4% and the brightness was up to 67.90 MW/(cm2•sr). © 2019, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
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共 17 条
  • [1] Hengesbach S., Poprawe R., Hoffmann D., Et al., Brightness and average power as driver for advancements in diode lasers and their applications, High-Power Diode Laser Technology and Applications XIII, 9348, (2015)
  • [2] Heinrich A., Hagen C., Harlander M., Et al., Aplanatic Beam Shaping for Diffraction Limited Beam Circularization of Tapered Laser diodes, High-Power Diode Laser Technology and Applications XII, 8965, (2014)
  • [3] Fan T.Y., Sanchez A., Daneu V., Et al., Laser Beam Combining for Power and Brightness scaling, Aerospace Conference Proceedings, 3, pp. 49-54, (2000)
  • [4] Huang R.K., Chann B., Burgess J., Et al., Teradiode's High Brightness Semiconductor lasers, Components and Packaging for Laser Systems II, 9730, (2016)
  • [5] Zimer H., Haas M., Nagel S., Et al., Spectrally Stabilized and Combined Diode lasers, High Power Diode Lasers and Systems Conference (HPD), pp. 31-32, (2015)
  • [6] Hengesbach S., Krauch N., Holly C., Et al., High-power dense wavelength division multiplexing of multimode diode laser radiation based on volume Bragg gratings, Optics Letters, 38, 16, pp. 3154-3157, (2013)
  • [7] Zhu Z., Gou L., Jiang M., Et al., High beam quality in two directions and high efficiency output of a diode laser array by spectral-beam-combining, Optics Express, 22, 15, pp. 17804-17809, (2014)
  • [8] Wang L., Peng H., Zhang J., Et al., Development of beam combining of high power high brightness diode lasers, Infrared and Laser Engineering, 46, 4, (2017)
  • [9] Zhou Q., Zhou C., Wei C., Et al., Diode Laser Array by Spectral Beam Combing with a Transmission grating, Holography, Diffractive Optics, and Applications VII, (2016)
  • [10] Zhang Y., Zhang B., Analysis of the spectral beam combining efficiency of diode laser, Infrared and Laser Engineering, 38, 5, pp. 864-872, (2009)
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