A 25kW fiber-coupled diode laser for pumping applications

被引:15
|
作者
Malchus, Joerg [1 ]
Krause, Volker [1 ]
Koesters, Arnd [1 ]
Matthews, David G. [2 ]
机构
[1] Laserline GmbH, Fraunhofer Str, D-56218 Muelheim Kaerlich, Germany
[2] Laserline Inc, Santa Clara, CA 95054 USA
关键词
Pump Source; Ultra High Power Diode Laser; Beam Transformation; Fiber Coupling;
D O I
10.1117/12.2039110
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this paper we report the development of a new fiber-coupled diode laser for pumping applications capable of generating 25 kW with four wavelengths. The delivery fiber has 2.0 mm core diameter and 0.22 NA resulting in a Beam Parameter Product (BPP) of 220 mm mrad. To achieve the specifications mentioned above a novel beam transformation technique has been developed combining two high power laser stacks in one common module. After fast axis collimation and beam reformatting a beam with a BPP of 200 mm mrad x 40 mm mrad in the slow and fast-axis is generated. Based on this architecture a customer-specific pump laser with 25 kW optical output power has been developed, in which two modules are polarization multiplexed for each wavelength (980nm, 1020nm, 1040m and 1060nm). After slow-axis collimation these wavelengths are combined using dense wavelength coupling before focusing onto the fiber endface. This new laser is based on a turn-key platform, allowing straight-forward integration into any pump application. The complete system has a footprint of less than 1.4m(2) and a height of less than 1.8m. The laser diodes are water cooled, achieve a wall-plug efficiency of up to 60%, and have a proven lifetime of >30,000 hours. The new beam transformation techniques open up prospects for the development of pump sources with more than 100kW of optical output power.
引用
收藏
页数:10
相关论文
共 50 条
  • [1] a A 15 kW Fiber-Coupled Diode Laser for Pumping Applications
    Matthews, David G.
    Kleine, Klaus
    Krause, Volker
    Koesters, Arnd
    Duennwald, Daniel
    Pflueger, Silke
    [J]. HIGH-POWER DIODE LASER TECHNOLOGY AND APPLICATIONS X, 2012, 8241
  • [2] A 40kW fiber-coupled diode laser for material processing and pumping applications
    Malchus, Joerg
    Krause, Volker
    Rehmann, Georg
    Leers, Michael
    Koesters, Arnd
    Matthews, David G.
    [J]. HIGH-POWER DIODE LASER TECHNOLOGY AND APPLICATIONS XIII, 2015, 9348
  • [3] 2 kW cw fiber-coupled diode laser system
    Dorsch, F
    Daiminger, FX
    Hennig, P
    Blümel, V
    [J]. ADVANCED HIGH-POWER LASERS, 2000, 3889 : 45 - 53
  • [4] High-Brightness, Fiber-Coupled Diode Laser System for Fiber Laser Pumping
    Roh, S. D.
    Grasso, D. M.
    Ostrom, N. P.
    Faircloth, B. O.
    [J]. 2007 CONFERENCE ON LASERS & ELECTRO-OPTICS/QUANTUM ELECTRONICS AND LASER SCIENCE CONFERENCE (CLEO/QELS 2007), VOLS 1-5, 2007, : 1417 - 1418
  • [5] 1 kW cw fiber-coupled diode laser with enhanced brightness
    Garre-Werner, Guillermo
    Montiel-Ponsoda, Joan J.
    Raab, Volker
    Safont, Gemma
    Bree, Carsten
    Radziunas, Mindaugas
    Cojocaru, Crina
    Staliunas, Kestutis
    [J]. HIGH-POWER DIODE LASER TECHNOLOGY XVIII, 2020, 11262
  • [6] Advances in the power, brightness, weight and efficiency of fiber-coupled diode lasers for pumping and direct diode applications
    Ebert, Chris
    Guiney, Tina
    Braker, Joe
    Stapleton, Dean
    Alegria, Kim
    Irwin, David
    [J]. HIGH-POWER DIODE LASER TECHNOLOGY XV, 2017, 10086
  • [7] Wavelength Stabilized Fiber-coupled Laser Modules for DPSS and Fiber Laser Pumping
    Hemenway, M.
    Chen, Z.
    Kanskar, M.
    Urbanek, W.
    Dawson, D.
    Bao, L.
    DeVito, M.
    Fortier, K.
    Martinsen, R.
    Welch, K.
    Ballaban, R.
    [J]. HIGH-POWER DIODE LASER TECHNOLOGY XVIII, 2020, 11262
  • [8] The research of fiber-coupled high power diode laser
    Liu You-qiang
    Cao Yin-hua
    Gao Jing
    Pan Fei
    Qin Wen-bin
    Wang Zhi-yong
    [J]. INTERNATIONAL SYMPOSIUM ON PHOTOELECTRONIC DETECTION AND IMAGING 2011: LASER SENSING AND IMAGING AND BIOLOGICAL AND MEDICAL APPLICATIONS OF PHOTONICS SENSING AND IMAGING, 2011, 8192
  • [9] Characterization and stabilization of fiber-coupled laser diode arrays
    Phillips, DF
    Wong, GP
    Bear, D
    Stoner, RE
    Walsworth, RL
    [J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 1999, 70 (07): : 2905 - 2909
  • [10] FIBER-COUPLED LASER-DIODE MOUNT FOR INTERFEROMETRY
    DEGROOT, P
    [J]. APPLIED OPTICS, 1993, 32 (34): : 7122 - 7123