Experimentation of 260 W wavelength stabilized fiber-coupled diode laser pumping model

Hualing Wu; Jun Lei; Linhui Guo; Chengqian Wang; Pengfei Xie; Yuxuan Liu; Yonggang Zhang; Xin’gang Cheng; Xiaoxiao Li; Wenqiang Lü; Zhao Wang; Songxin Gao

doi:10.11884/HPLPB202234.210558

High Power Laser and Particle Beams, Volume. 34, Issue 6, 061002(2022)

Experimentation of 260 W wavelength stabilized fiber-coupled diode laser pumping model

Hualing Wu^1,2, Jun Lei^1,2, Linhui Guo^1,2, Chengqian Wang^1,2, Pengfei Xie^1,2, Yuxuan Liu^1,2, Yonggang Zhang^1,2, Xin’gang Cheng^1,2, Xiaoxiao Li^1,2, Wenqiang Lü^1,2, Zhao Wang^1,2, and Songxin Gao^1,2

Author Affiliations

¹Key Laboratory of Science and Technology on High Energy Laser, CAEP, Mianyang 621900, China

²Institute of Applied Electronics, CAEP, Mianyang 621900, China

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Figures & Tables(10)

Fig. 1. Optical system design

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Fig. 2. The principle of VBG wavelength-control

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Fig. 3. The spectrum with/without VBG wavelength control

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Fig. 4. Beam collimation

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Fig. 5. Polarization complexing system

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Fig. 6. Structure design of fiber coupling module

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Fig. 7. Testing of output power and spectrum

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Fig. 8. Output curves

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Table 1. Main parameters of the LD chip (25 ℃)
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Table 1. Main parameters of the LD chip (25 ℃)
emitter contact width/μm cavity length/mm θ_||/(°) θ_⊥/(°) centroid wavelength/nm power@18 A/W
120 4 9(95% energy) 52(95% energy) 976±3 ＞16.5

Table 2. Transmission efficiency of VBG

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Table 2. Transmission efficiency of VBG

power/W	wavelength/nm	power/W	wavelength/nm	FWHM/nm	transmission efficiency of VBG/%
free-running		lensed with VBG			transmission efficiency of VBG/%
16.62	977.30	16.12	975.34	0.49	97.0
16.57	975.48	16.02	975.34	0.50	96.7
16.58	977.72	16.04	975.34	0.51	96.7
16.44	977.58	15.91	975.34	0.49	96.8
16.60	977.72	16.14	975.34	0.49	97.2
16.61	977.86	16.11	975.20	0.48	97.0
16.47	977.86	16.02	975.20	0.49	97.3

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Hualing Wu, Jun Lei, Linhui Guo, Chengqian Wang, Pengfei Xie, Yuxuan Liu, Yonggang Zhang, Xin’gang Cheng, Xiaoxiao Li, Wenqiang Lü, Zhao Wang, Songxin Gao. Experimentation of 260 W wavelength stabilized fiber-coupled diode laser pumping model[J]. High Power Laser and Particle Beams, 2022, 34(6): 061002

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