Properties of Mid-Infrared Broadband Emission Lead Fluoride Laser Crystals

Peixiong Zhang; Zhen Li; Hao Yin; Zhenqiang Chen

doi:10.3788/CJL202249.0101011

Journals >Chinese Journal of Lasers >Volume 49 >Issue 1 >Page 0101011 > Article

Chinese Journal of Lasers
Vol. 49, Issue 1, 0101011 (2022)

Properties of Mid-Infrared Broadband Emission Lead Fluoride Laser Crystals

Peixiong Zhang, Zhen Li, Hao Yin, and Zhenqiang Chen^*

Author Affiliations

Guangdong Provincial Engineering Research Center of Crystal and Laser Technology, Department of Optoelectronic Engineering, College of Science & Engineering, Jinan University, Guangzhou, Guangdong 510632, China

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DOI: 10.3788/CJL202249.0101011 Cite this Article Set citation alerts

Peixiong Zhang, Zhen Li, Hao Yin, Zhenqiang Chen. Properties of Mid-Infrared Broadband Emission Lead Fluoride Laser Crystals[J]. Chinese Journal of Lasers, 2022, 49(1): 0101011 Copy Citation Text

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Fig. 1. Simplified energy level diagrams of different ions emitting in～3 μm band. (a) Er^3＋；(b) Ho^3＋；(c) Dy^3＋

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Energy level transitions among Er3＋，Ho3＋ and Pr3＋ ions in Er3＋/Ho3＋/Pr3＋∶PbF2 crystal[24]

Fig. 2. Energy level transitions among Er^3＋，Ho^3＋ and Pr^3＋ ions in Er^3＋/Ho^3＋/Pr^3＋∶PbF₂ crystal^[24]

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Fig. 3. Fluorescence spectra of Er^3＋∶PbF₂, Ho^3＋∶PbF₂, Er^3＋/Ho^3＋∶PbF₂, Er^3＋/Ho^3＋/Pr^3＋∶PbF₂ crystals^[24]

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Fig. 4. Energy level transitions among Yb^3＋，Er^3＋ and Dy^3＋ ions in Yb^3＋/Er^3＋/Dy^3＋∶PbF₂ crystal^[31]

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Fig. 5. Fluorescence spectra of Er^3＋∶PbF₂, Dy^3＋∶PbF_2, Er^3＋/Dy^3＋∶PbF₂, Yb^3＋/Er^3＋/Dy^3＋∶PbF₂ crystals^[31]

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Fig. 6. Energy level transitions among Yb^3＋，Ho^3＋ and Dy^3＋ ions in Yb^3＋/Ho^3＋/Dy^3＋∶PbF₂ crystal^[37]

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Fig. 7. Fluorescence spectra of Yb^3＋/Ho^3＋∶PbF₂, Yb^3＋/Dy^3＋∶PbF₂, Yb^3＋/Ho^3＋/Dy^3＋∶PbF₂ crystals^[37]

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Crystal	β /%		τ / ms
Crystal	Er^3＋∶⁴I_11/2 →⁴I_13/2	Ho^3＋∶⁵I₆ →⁵I₇	Er^3＋∶⁴I_11/2	Er^3＋∶⁴I_13/2	Ho^3＋∶⁵I₆	Ho^3＋∶⁵I₇
Er^3＋∶PbF₂	14.9	-	6.03	14.30	-	-
Ho^3＋∶PbF₂	-	13.6	-	-	1.82	9.71
Er^3＋/Ho^3＋∶PbF₂	20.1	11.5	4.85	2.36	2.13	11.60
Er^3＋/Ho^3＋/Pr^3＋∶PbF₂	21.4	19.8	3.46	0.08	2.86	1.43

Table 1. Spectral parameters of Er^3＋∶PbF₂, Ho^3＋∶PbF₂, Er^3＋/Ho^3＋∶PbF₂, Er^3＋/Ho^3＋/Pr^3＋∶PbF₂ crystals^[24]

Crystal	β(Er^3＋∶⁴I_11/2 →⁴I_13/2) /%	τ /ms		$\frac{τ ({Er}^{3+} :^{4} I_{11/2})}{τ ({Er}^{3 +} ：^{4} I_{13 / 2})} / %$
Crystal	β(Er^3＋∶⁴I_11/2 →⁴I_13/2) /%	Er^3＋∶⁴I_11/2	Er^3＋∶⁴I_13/2
Er^3＋∶PbF₂	14.5	6.029	14.291	42.19
Er^3＋/Dy^3＋∶PbF₂	15.7	0.238	0.286	83.22
Yb^3＋/Er^3＋/Dy^3＋∶PbF₂	15.8	0.278	0.307	90.55

Table 2. Spectral parameters of Er^3＋∶PbF₂, Er^3＋/Dy^3＋∶PbF₂, Yb^3＋/Er^3＋/Dy^3＋∶PbF₂ crystals^[31]

Crystal	β(Ho^3＋∶⁵I₆ →⁵I₇) /%	τ / ms		$\frac{τ ({Ho}^{3 +} ：^{5} I_{6})}{τ ({Ho}^{3 +} :^{5} I_{7})} / %$
Crystal	β(Ho^3＋∶⁵I₆ →⁵I₇) /%	Ho^3＋∶⁵I₆	Ho^3＋∶⁵I₇
Ho^3＋∶PbF₂	14.5	2.036	4.449	45.8
Yb^3＋/Ho^3＋∶PbF₂	14.6	2.288	4.613	49.6
Yb^3＋/Ho^3＋/Dy^3＋∶PbF₂	5.7	0.998	0.095	105.1

Table 3. Spectral parameters of Ho^3＋∶PbF₂, Yb^3＋/Ho^3＋∶PbF₂, Yb^3＋/Ho^3＋/Dy^3＋∶PbF₂ crystals^[37]

Peixiong Zhang, Zhen Li, Hao Yin, Zhenqiang Chen. Properties of Mid-Infrared Broadband Emission Lead Fluoride Laser Crystals[J]. Chinese Journal of Lasers, 2022, 49(1): 0101011

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