Diode-pumped Yb,Er:glass laser passively Q switched with a V<sup>3+</sup>:YAG crystal

Svetlana A. Zolotovskaya; Konstantin V. Yumashev; Nikolay V. Kuleshov; Alexander V. Sandulenko

doi:10.1364/AO.44.001704

Applied Optics
Vol. 44,
Issue 9,
pp. 1704-1708
(2005)
•https://doi.org/10.1364/AO.44.001704

Diode-pumped Yb,Er:glass laser passively Q switched with a V³⁺:YAG crystal

Svetlana A. Zolotovskaya, Konstantin V. Yumashev, Nikolay V. Kuleshov, and Alexander V. Sandulenko

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Svetlana A. Zolotovskaya, Konstantin V. Yumashev, Nikolay V. Kuleshov, and Alexander V. Sandulenko, "Diode-pumped Yb,Er:glass laser passively Q switched with a V³⁺:YAG crystal," Appl. Opt. 44, 1704-1708 (2005)

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Abstract

Saturable-absorber Q switching of a diode-pumped erbium-doped glass laser at 1.54 μm with a V:YAG crystal has been demonstrated. An average output power of 30 mW with Q-switching efficiency of 37% and pulse duration of 350 ns have been obtained. Results of the numerical simulation of the laser have been presented.

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Q Switch	Relaxation Time (ns)	σ_GSA^a (cm²)	σ_Eda/σ_Gsa^a	Ref.
SESAM^b	0.1 … 10	E_S^c = 100 μJ/cm²	—	13
Co:LaMgAl₁₁O₁₉	220	1.2 × 10⁻¹⁹	~0.07	7
Co:MgAl₂O₄	350	3.5 × 10⁻¹⁹	~0.03	8
Co:ZnSe	2.9 × 10⁵	5.0 … 5.7 × 10⁻¹⁹	0.05 … 0.22	5, 12
Cr:ZnSe	8 × 10³	2.7 × 10⁻¹⁹	~0.075	5
U:CaF₂	4.7 × 10³	7 … 9 × 10⁻²⁰	~0.4	11, 12
V:YAG	20 … 30	~ 7.2 × 10⁻¹⁸ (at 1.34 μm)	0.1 (at 1.34 μm)	16, 17

Output Coupler Transmittance (%)	1.1	2
Pulse duration (ns)	350	470
Pulse repetition rate (kHz)	107	100
Average output power (mW)	30	25
Slope efficiency (%)	10	10
Peak power (W)	0.8	0.5

Q Switch	Relaxation Time (ns)	σ_GSA^a (cm²)	σ_Eda/σ_Gsa^a	Ref.
SESAM^b	0.1 … 10	E_S^c = 100 μJ/cm²	—	13
Co:LaMgAl₁₁O₁₉	220	1.2 × 10⁻¹⁹	~0.07	7
Co:MgAl₂O₄	350	3.5 × 10⁻¹⁹	~0.03	8
Co:ZnSe	2.9 × 10⁵	5.0 … 5.7 × 10⁻¹⁹	0.05 … 0.22	5, 12
Cr:ZnSe	8 × 10³	2.7 × 10⁻¹⁹	~0.075	5
U:CaF₂	4.7 × 10³	7 … 9 × 10⁻²⁰	~0.4	11, 12
V:YAG	20 … 30	~ 7.2 × 10⁻¹⁸ (at 1.34 μm)	0.1 (at 1.34 μm)	16, 17

Output Coupler Transmittance (%)	1.1	2
Pulse duration (ns)	350	470
Pulse repetition rate (kHz)	107	100
Average output power (mW)	30	25
Slope efficiency (%)	10	10
Peak power (W)	0.8	0.5

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Applied Optics