Spectral Performance of Yb <sup>3+</sup>-Doped Silica Fiber for 1018 nm Tandem-Pumping Technology

Hehe Dong; Shikai Wang; Zhongyue Wang; Chunlei Yu; Chongyun Shao; Wei Wei; Lili Hu

doi:10.3788/CJL202148.1103001

Chinese Journal of Lasers, Volume. 48, Issue 11, 1103001(2021)

Spectral Performance of Yb ³⁺-Doped Silica Fiber for 1018 nm Tandem-Pumping Technology

Hehe Dong^1,2, Shikai Wang^2、*, Zhongyue Wang^1、**, Chunlei Yu^2、***, Chongyun Shao², Wei Wei¹, and Lili Hu²

¹College of Electronic and Optical Engineering & College of Microelectronics, Nanjing University of Posts and Telecommunications, Nanjing, Jiangsu 210023, China;

²The R & D Center for High Power Laser Components, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;

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Figures & Tables(11)

Fig. 1. Preparation process of Yb³⁺-doped silica glass samples

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Fig. 2. Absorption and fluorescence spectra of YA series samples, the insets are absorption and fluorescence intensities at 1018 nm, respectively. (a) Absorption spectra; (b) fluorescence spectra

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Fig. 3. Absorption and fluorescence spectra of YAP series samples, the insets are absorption and fluorescence intensities at 1018 nm, respectively. (a) Absorption spectra; (b) fluorescence spectra

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Fig. 4. Absorption and fluorescence spectra of YP series samples, the insets are absorption and fluorescence intensities at 1018 nm, respectively. (a) Absorption spectra; (b) fluorescence spectra

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Fig. 5. Absorption and fluorescence spectral lines of YA2 glass sample (after Lorentz fitting). (a) Absorption spectral line; (b) fluorescence spectral line

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Fig. 6. Normalized spectral intensity of three series of optimal samples at 1018 nm. (a) Absorption spectra; (b) fluorescence spectra

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Fig. 7. Raman spectra of YA and YP series samples. (a) YA series samples; (b) YP series samples

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Fig. 8. 2D-HYSCORE spectra of YA2 and YP8 samples. (a) YA2 sample; (b) YP8 sample

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Table 1. Mean composition of three series of Yb³⁺-doped silica glass samples

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Table 1. Mean composition of three series of Yb³⁺-doped silica glass samples

Yb³⁺-doped silica glass sample		Molar fraction/%
Yb³⁺-doped silica glass sample		Yb₂O₃	Al₂O₃	P₂O₅	SiO₂
YA series	YA2	0.1	2		99.9
	YA4	0.1	4		95.9
	YA16	0.1	16	83.9
YAP series	YAP0.25	0.1	4	1	94.9
	YAP1	0.1	4	4	91.9
	YAP2	0.1	4	8	87.9
YP series	YP8	0.1		8	91.9
	YP10	0.1		10	89.9
	YP12	0.1		12	87.9

Table 2. Yb³⁺ Stark transition energies, scalar crystal-field parameters N_J and asymmetry degree α in different series of glass samples

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Table 2. Yb³⁺ Stark transition energies, scalar crystal-field parameters N_J and asymmetry degree α in different series of glass samples

Yb³⁺-doped silicaglasses sample		Stark energy / cm^-1							N_J	α
Yb³⁺-doped silicaglasses sample		E₇	E₆	E₅	E₄	E₃	E₂	E₁	N_J	α
YA series	YA2	11022	10793	10263	1021	632	447	0	4167	1.07
	YA4	10990	10737	10266	996	618	433	0	4065	0.96
	YA16	10968	10682	10273	906	575	381	0	3698	0.83
YAP series	YAP0.25	11021	10773	10264	996	502	420	0	4060	1.01
	YAP1	10998	10750	10264	973	523	519	0	3971	0.98
	YAP2	10959	10499	10278	843	518	285	0	3440	0.39
YP series	YP8	10950	10538	10255	799	484	323	0	3261	0.52
	YP10	10938	10535	10254	774	490	328	0	3159	0.50
	YP12	10935	10528	10258	769	505	331	0	3138	0.48

Table 3. Raman peak position in the quartz glass matrix

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Table 3. Raman peak position in the quartz glass matrix

Raman shift /cm^-1	Vibration
430	Si—O—Si bond symmetric stretching vibration
483	Structural defect of plane quaternion ring
603	Planar ternary ring structural defect
800	Si—O—Si bond bending vibrations
1065,1200	Si—O—Si antisymmetric stretching vibration (silica glass)
1320	P=O stretching vibration
1000--1250	Stretching vibration of Si-O-Si, Si-O-P, P-O-P, P-O-Al, and Si-O-Al

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Hehe Dong, Shikai Wang, Zhongyue Wang, Chunlei Yu, Chongyun Shao, Wei Wei, Lili Hu. Spectral Performance of Yb ³⁺-Doped Silica Fiber for 1018 nm Tandem-Pumping Technology[J]. Chinese Journal of Lasers, 2021, 48(11): 1103001

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Paper Information

Category: materials and thin films

Received: Sep. 22, 2020

Accepted: Dec. 14, 2020

Published Online: Jun. 4, 2021

The Author Email: Shikai Wang (woshiwsk@163.com), Zhongyue Wang (zywang@njupt.edu.cn), Chunlei Yu (sdycllcy@163.com)

DOI:10.3788/CJL202148.1103001

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Mean composition of three series of Yb3+-doped silica glass samples

Table 1. Mean composition of three series of Yb3+-doped silica glass samples

Table 2. Yb3+ Stark transition energies, scalar crystal-field parameters NJ and asymmetry degree α in different series of glass samples

Table 2. Yb3+ Stark transition energies, scalar crystal-field parameters NJ and asymmetry degree α in different series of glass samples

Table 3. Raman peak position in the quartz glass matrix

Table 3. Raman peak position in the quartz glass matrix

Table 1. Mean composition of three series of Yb³⁺-doped silica glass samples

Table 1. Mean composition of three series of Yb³⁺-doped silica glass samples

Table 2. Yb³⁺ Stark transition energies, scalar crystal-field parameters N_J and asymmetry degree α in different series of glass samples

Table 2. Yb³⁺ Stark transition energies, scalar crystal-field parameters N_J and asymmetry degree α in different series of glass samples