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Chinese Optics Letters, Volume. 14, Issue 2, 021405(2016)

Highly efficient Nd:(LaxGd1−x)3Gd5O12 laser operation at 1.33  μm

Zhitai Jia1,2, Yanru Yin1, He Yang1, Baitao Zhang1, Jingliang He1,2, Mauro Tonelli3, and Xutang Tao1,2、*
Author Affiliations
  • 1State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
  • 2Key Laboratory of Functional Crystal Materials and Device (Shandong University, Ministry of Education), Jinan 250100, China
  • 3NEST-CNR and Dipartimento di Fisica, Università di Pisa, Largo Pontecorvo 3, 56127 Pisa, Italy
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    Experimental arrangement of diode-pumped Nd:LaGGG crystal at 1.33 μm.

    Fig. 1. Experimental arrangement of diode-pumped Nd:LaGGG crystal at 1.33 μm.

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    Room-temperature stimulated emission cross section of Nd:LGGG (Lu3+=0.66 at. %) and Nd:LaGGG at around 1.3 μm.

    Fig. 2. Room-temperature stimulated emission cross section of Nd:LGGG (Lu3+=0.66  at. %) and Nd:LaGGG at around 1.3 μm.

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    Relationship between the thermal focal length and absorbed pump power.

    Fig. 3. Relationship between the thermal focal length and absorbed pump power.

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    CW output power versus absorbed pump power.

    Fig. 4. CW output power versus absorbed pump power.

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    Q-switched output power versus absorbed pump power.

    Fig. 5. Q-switched output power versus absorbed pump power.

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    Variation of repetition and pulse width versus the absorbed pump power.

    Fig. 6. Variation of repetition and pulse width versus the absorbed pump power.

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    Pulse train with the repetition rate of 13.66 kHz. The upper left inset shows the pulse profile with the pulse width of 27.54 ns.

    Fig. 7. Pulse train with the repetition rate of 13.66 kHz. The upper left inset shows the pulse profile with the pulse width of 27.54 ns.

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    • Table 1. CW and PQS Laser Properties of Some Nd-doped Gallium-based Garnets at 1.3  μm

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      Table 1. CW and PQS Laser Properties of Some Nd-doped Gallium-based Garnets at 1.3  μm

       CWPQS
      Laser propertiesPout (W)ηoptηpPave (W)ΔT (ns)Ppeak (kW)E (μJ)Ref.
      Nd:GGG2.0819.0%20.5%0.4619.00.611.8[7]
      1.5019.4%21.5%0.1816.41.321.4[8]
      Nd:GAGG2.4521.8%23.3%0.3318.22.036.3[9]
      Nd:LGGG0.938.5%10.4%0.1715.61.116.7[10]
      3.7019.6%20.9%0.7525.91.743.6[11]
      Nd:YGG3.0916.7%21.3%––––[12]
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    Zhitai Jia, Yanru Yin, He Yang, Baitao Zhang, Jingliang He, Mauro Tonelli, Xutang Tao, "Highly efficient Nd:(LaxGd1−x)3Gd5O12 laser operation at 1.33  μm," Chin. Opt. Lett. 14, 021405 (2016)

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Oct. 12, 2015

    Accepted: Nov. 26, 2015

    Published Online: Sep. 21, 2018

    The Author Email: Xutang Tao (txt@sdu.edu.cn)

    DOI:10.3788/COL201614.021405

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology