Infrared and Laser Engineering, Volume. 49, Issue 7, 20190456(2020)
Status and development trend of high power slab laser technology
Figures & Tables(7)
Fig. 1. Improvement of thermo-optical distortion by solid laser configuration change
Fig. 2. Development process of continuous wave pumped slab laser technology
Fig. 3. Grumann's 100 kW CW-end pumped cooling slab laser module and MOPA link. The un-grayed parts represent copies of the two amplified links. YDFA: Yb doped fiber amplifier; PM: phase modulator; AOM: acousto-optic modulator; PA: pre-amplifier
Fig. 5. Comparison of pump energy storage between multi-segment variable-doped slabs (bottom) and single-doped slabs (top)
Table 1. Comparison of laser characteristics of CW end-pumped and QCW surface-pumped slab lasers
View tableView in ArticleTable 1. Comparison of laser characteristics of CW end-pumped and QCW surface-pumped slab lasers
Operating mode Advantage CW end pump LD bar has high average power, low quantity and low cost Low requirements on media size Thin slabs and high energy storage density No pulse drive power supply, the power supply is small Heat sink welding technology is less difficult QCW surface pump High small signal gain, high energy conversion efficiency No need to bond undoped YAG at both ends Uniform energy storage Thickness of the slab is relatively thick, and the diffraction loss between amplification stages is small Brightness can be improved by coaxial non-coherent timing synthesis technology [ 16 ]
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Huihua Wang, Longxin Lin, Xin Ye. Status and development trend of high power slab laser technology[J]. Infrared and Laser Engineering, 2020, 49(7): 20190456
Paper Information
Category: 激光器与激光光学
Received: Dec. 5, 2019
Accepted: --
Published Online: Aug. 19, 2020
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