This article is cited in 3 papers

Lasers

Stable Q-switched mode-locking of an in-band pumped Ho : Y₂O₃ ceramic laser at 2117 nm

Yajie Shen^a, Enhao Li^b, Jun Wang^a, Dingyuan Tang^a, Deyuan Shen<sup>a

a</sup> Jiangsu Key Laboratory of Advanced Laser Materials and Devices, Jiangsu Normal University, China
^b Jiangsu Collaborative Innovation Center of Advanced Laser Technology and Emerging Industry, Xuzhou, China

Abstract: We have demonstrated stable Q-switched mode-locked operation of an in-band pumped Ho : Y₂O₃ ceramic laser at 2117 nm by using an InGaAs/GaAs-based saturable absorber. An average output power of 330 mW is reached for 2.7 W of absorbed pump power with stable mode-locked pulses having a 98.9-MHz repetition rate and 100% modulation depth embedded inside Q-switched envelopes of ~1.7-μs duration. The duration of the mode-locked pulses is estimated to be less than 1.5 ns.

Keywords: Q-switched mode-locking, mid-IR range, laser ceramic, Ho : Y₂O₃; pulsed laser.

Received: 30.01.2021

 English version: Quantum Electronics, 2021, 51:5, 419–422

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