Article ID Journal Published Year Pages File Type
733373 Optics & Laser Technology 2016 5 Pages PDF
Abstract

•We obtained the highest output power and efficiency of Nd:GYSO laser at 1.07 µm.•We obtained the first 1058 nm Nd:GYSO laser in free-running mode.•We obtained the first wavelength tuning of Nd:GYSO laser.•We obtained the highest average output power of MoS2-based Q-switched Nd3+ laser.

We report diode-pumped continuous-wave (CW) and Q-switched Nd:GYSO lasers using a compact two-mirror linear laser cavity. Single-wavelength laser emissions at 1074.11 nm with 4.1-W power and at 1058.27 nm with 1.47-W power have been obtained in CW mode. The slope efficiencies with respect to the absorbed pump powers are 48.5% and 22.9%, respectively. Wavelength tunability is also demonstrated with range of about 8 nm. Using a MoS2 saturable absorber, maximum average output power up to 410 mW at 1074 nm can be yielded with absorbed pump power 6.41 W and the maximum pulse energy reaches 1.20 μJ with pulse repetition rate of 342.5 kHz and shortest pulse width of 810 ns. The CW laser results represent the best laser performance and the Q-switching also present the highest output power for Q-switched Nd3+ lasers with MoS2 as saturable absorber.

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Physical Sciences and Engineering Engineering Electrical and Electronic Engineering
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