• Chinese Optics Letters
  • Vol. 19, Issue 9, 091407 (2021)
Hongkun Nie1, Feifei Wang1, Junting Liu1, Kejian Yang1、2, Baitao Zhang1、2、*, and Jingliang He1、2
Author Affiliations
  • 1State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
  • 2Key Laboratory of Laser & Infrared System, Ministry of Education, Shandong University, Qingdao 266237, China
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    Abstract

    Mid-infrared (MIR) laser sources operating in the 2.7–3 µm spectral region have attracted extensive attention for many applications due to the unique features of locating at the atmospheric transparency window, corresponding to the “characteristic fingerprint” spectra of several gas molecules, and strong absorption of water. Over the past two decades, significant developments have been achieved in 2.7–3 µm MIR lasers benefiting from the sustainable innovations in laser technology and the great progress in material science. Here, we mainly summarize and review the recent progress of MIR bulk laser sources based on the rare-earth ions-doped crystals in the 2.7–3 µm spectral region, including Er3+-, Ho3+-, and Dy3+-doped crystalline lasers. The outlooks and challenges for future development of rare-earth-doped MIR bulk lasers are also discussed.
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    Hongkun Nie, Feifei Wang, Junting Liu, Kejian Yang, Baitao Zhang, Jingliang He. Rare-earth ions-doped mid-infrared (2.7–3 µm) bulk lasers: a review [Invited][J]. Chinese Optics Letters, 2021, 19(9): 091407
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    Category: Lasers, Optical Amplifiers, and Laser Optics
    Received: Apr. 27, 2021
    Accepted: May. 21, 2021
    Published Online: Aug. 26, 2021
    The Author Email: Baitao Zhang (btzhang@sdu.edu.cn)