Modulation of MXene Nb2CTx saturable absorber for passively Q-switched 2.85 µm Er:Lu2O3laser

Chenyang Feng; Wenchao Qiao; Yizhou Liu; Yizhou Liu; Jiacheng Huang; Yangyang Liang; Yuefeng Zhao; Yuzhi Song; Yuzhi Song; Tao Li; Tao Li

doi:10.1364/OL.416644

Optics Letters
Vol. 46,
Issue 6,
pp. 1385-1388
(2021)
•https://doi.org/10.1364/OL.416644

Modulation of MXene Nb₂CT_x saturable absorber for passively Q-switched 2.85 µm Er:Lu₂O₃laser

Chenyang Feng, Wenchao Qiao, Yizhou Liu, Jiacheng Huang, Yangyang Liang, Yuefeng Zhao, Yuzhi Song, and Tao Li

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Chenyang Feng, Wenchao Qiao, Yizhou Liu, Jiacheng Huang, Yangyang Liang, Yuefeng Zhao, Yuzhi Song, and Tao Li, "Modulation of MXene Nb₂CT_x saturable absorber for passively Q-switched 2.85 µm Er:Lu₂O₃laser," Opt. Lett. 46, 1385-1388 (2021)

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Abstract

We proposed a passively stabilized Q-switched ${\rm Er}:{{\rm Lu}_2}{{\rm O}_3}$ laser at 2845 nm, applying a MXene ${{\rm Nb}_2}{{\rm CT}_x}$ nanosheets saturable absorber prepared by the liquid-phase exfoliation method. The surface morphology and nonlinear properties of this nanosheet were systematically characterized. Average output power of 542 mW for the Q-switched laser was obtained under 7.26 W of absorbed pump power. Meanwhile, the Q-switched pulse duration was measured to be 223.7 ns with 142.9 kHz repetition rate corresponding to a peak power of 16.96 W.

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Gain Medium	MM	WL (µm)	PW (ns)	OP (mW)
$E r : {L u}_{2} O_{3}$ [6]	${T i}_{4} N_{3} T_{x}$	2.85	278.4	778
$E r : Y_{2} O_{3}$ [18]	${T i}_{3} C_{2} T_{x}$	2.72	58.1	67.6
$T m, G d : {C a F}_{2}$ [27]	${T i}_{3} C_{2} T_{x}$	1.9	2390	200
Nd:YAG [28]	${M o}_{2} C$	1.064	136	547
$N d : {Y V O}_{4}$ [28]	${M o}_{2} C$	1.342	222	236
$E r : {L u}_{2} O_{3}$ ^b	${N b}_{2} {C T}_{x}$	2.845	223.7	542

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Optics Letters