IEEE Photonics Journal (Jan 2020)

Watt-Level Continuous-Wave Mode-Locked Nd:YVO<sub>4</sub> Laser With ReSe<sub>2</sub> Saturable Absorber

  • Yuchen Xue,
  • Li Li,
  • Bin Zhang,
  • Ruoxing Wang,
  • Jinhui Cui,
  • Fengjun Tian,
  • Jianzhong Zhang

DOI
https://doi.org/10.1109/JPHOT.2020.3022800
Journal volume & issue
Vol. 12, no. 5
pp. 1 – 10

Abstract

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We report a ReSe2 passively mode-locked composite YVO4/Nd:YVO4 laser at 1.06 μm, which can stably generate pure continuous-wave mode-locking (CWML) operation at watt-level output. ReSe2, as a new type of 2-D transition metal dichalcogenides (TMDs), has the features of weak-layered dependence, broadband saturable absorption, low modulation depth and saturation intensity, which is beneficial to initiate robust CWML mechanism via nonlinear saturable absorption. By employing few-layered ReSe2 as saturable absorber, the nanosecond mode-locked pulses at fundamental repetition rate of 90.37 MHz was obtained experimentally in a composite YVO4/Nd:YVO4 laser. The maximum output power in pure CWML operation was as high as 1.1 W. The high-power CWML laser source shows potential applications in time-resolved spectroscopy, telecommunication and detection.

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