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Photonics Research, Volume. 6, Issue 8, 800(2018)

Generation of 84-fs pulses from a mode-locked Tm:CNNGG disordered garnet crystal laser

Zhongben Pan1,2、†,*, Yicheng Wang1、†, Yongguang Zhao1,3, Hualei Yuan2, Xiaojun Dai2, Huaqiang Cai2, Ji Eun Bae4, Sun Young Choi4, Fabian Rotermund4, Xavier Mateos5, Josep Maria Serres5, Pavel Loiko6, Uwe Griebner1, and Valentin Petrov1
Author Affiliations
  • 1Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy, Max-Born-Str. 2a, D-12489 Berlin, Germany
  • 2Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, China
  • 3Jiangsu Key Laboratory of Advanced Laser Materials and Devices, Jiangsu Normal University, Xuzhou 221116, China
  • 4Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), 34141 Daejeon, South Korea
  • 5Física i Cristal·lografia de Materials i Nanomaterials (FiCMA-FiCNA)-EMaS, Departament de Química Física i Inòrganica, Universitat Rovira i Virgili (URV), Campus Sescelades, E-43007 Tarragona, Spain
  • 6ITMO University, 49 Kronverkskiy Pr., 197101 St. Petersburg, Russia
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    Gain cross-section σg=βσe−(1−β)σa for the F43→H63 transition of Tm3+ in CNNGG for different inversion levels β.

    Fig. 1. Gain cross-section σg=βσe−(1−β)σa for the F43→H63 transition of Tm3+ in CNNGG for different inversion levels β.

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    Scheme of the mode-locked Tm:CNNGG laser (L, lens; M1 and M2, dichroic folding mirrors; M3, plane mirror; CM1–CM4, chirped mirrors; OC, output coupler).

    Fig. 2. Scheme of the mode-locked Tm:CNNGG laser (L, lens; M1 and M2, dichroic folding mirrors; M3, plane mirror; CM1–CM4, chirped mirrors; OC, output coupler).

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    (a) Output power versus absorbed pump power with different OCs in CW operation, and (b) wavelength tuning using a Lyot filter and OC with transmission T=0.2%. In (a), η denotes the slope efficiency with respect to the absorbed pump power.

    Fig. 3. (a) Output power versus absorbed pump power with different OCs in CW operation, and (b) wavelength tuning using a Lyot filter and OC with transmission T=0.2%. In (a), η denotes the slope efficiency with respect to the absorbed pump power.

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    Total round trip GDD introduced by chirped mirrors, Tm:CNNGG, and fused silica substrate of the SA.

    Fig. 4. Total round trip GDD introduced by chirped mirrors, Tm:CNNGG, and fused silica substrate of the SA.

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    Recorded autocorrelation traces (raw data and fits) and optical spectra with (a), (b) T=1.5%, (c), (d) T=0.5%, and (e), (f) T=0.2% (e–f).

    Fig. 5. Recorded autocorrelation traces (raw data and fits) and optical spectra with (a), (b) T=1.5%, (c), (d) T=0.5%, and (e), (f) T=0.2% (e–f).

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    Radio frequency spectra of the mode-locked Tm:CNNGG laser with the 1.5% OC: (a) fundamental beat note and (b) 1.0 GHz wide-span (RBW: resolution bandwidth).

    Fig. 6. Radio frequency spectra of the mode-locked Tm:CNNGG laser with the 1.5% OC: (a) fundamental beat note and (b) 1.0 GHz wide-span (RBW: resolution bandwidth).

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    Zhongben Pan, Yicheng Wang, Yongguang Zhao, Hualei Yuan, Xiaojun Dai, Huaqiang Cai, Ji Eun Bae, Sun Young Choi, Fabian Rotermund, Xavier Mateos, Josep Maria Serres, Pavel Loiko, Uwe Griebner, Valentin Petrov, "Generation of 84-fs pulses from a mode-locked Tm:CNNGG disordered garnet crystal laser," Photonics Res. 6, 800 (2018)

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Apr. 6, 2018

    Accepted: Jun. 8, 2018

    Published Online: Aug. 1, 2018

    The Author Email: Zhongben Pan (pzb8625@126.com)

    DOI:10.1364/PRJ.6.000800

    Topics

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