PhotoniX, Volume. 4, Issue 1, 36(2023)

Ultrafast dissipative soliton generation in anomalous dispersion achieving high peak power beyond the limitation of cubic nonlinearity

Jinhwa Gene1, Seung Kwan Kim2, Sun Lim2、*, and Min Yong Jeon3,4、**
Author Affiliations
  • 1Artificial Intelligence Research Laboratory, Electronics and Telecommunications Research Institute, Daejeon 34129, Republic of Korea
  • 2Division of Physical Metrology, Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea
  • 3Institute of Quantum Systems (IQS), Chungnam National University, Daejeon 34134, Republic of Korea
  • 4Department of Physics, College of Natural Sciences, Chungnam National University, Daejeon 34134, Republic of Korea
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    The maximum peak power of ultrafast mode-locked lasers has been limited by cubic nonlinearity, which collapses the mode-locked pulses and consequently leads to noisy operation or satellite pulses. In this paper, we propose a concept to achieve mode-locked pulses with high peak power beyond the limitation of cubic nonlinearity with the help of dissipative resonance between quintic nonlinear phase shifts and anomalous group velocity dispersion. We first conducted a numerical study to investigate the existence of high peak power ultrafast dissipative solitons in a fiber cavity with anomalous group velocity dispersion (U-DSAD) and found four unique characteristics. We then built long cavity ultrafast thulium-doped fiber lasers and verified that the properties of the generated mode-locked pulses match well with the U-DSAD characteristics found in the numerical study. The best-performing laser generated a peak power of 330 kW and a maximum pulse energy of 80 nJ with a pulse duration of 249 fs at a repetition rate of 428 kHz. Such a high peak power exceeds that of any previous mode-locked pulses generated from a single-mode fiber laser without post-treatment. We anticipate that the means to overcome cubic nonlinearity presented in this paper can give insight in various optical fields dealing with nonlinearity to find solutions beyond the inherent limitations.

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    Jinhwa Gene, Seung Kwan Kim, Sun Lim, Min Yong Jeon. Ultrafast dissipative soliton generation in anomalous dispersion achieving high peak power beyond the limitation of cubic nonlinearity[J]. PhotoniX, 2023, 4(1): 36

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    Paper Information

    Category: Research Articles

    Received: Jul. 14, 2023

    Accepted: Sep. 27, 2023

    Published Online: Dec. 14, 2023

    The Author Email: Lim Sun (sdlim@kriss.re.kr), Jeon Min Yong (myjeon@cnu.ac.kr)

    DOI:10.1186/s43074-023-00112-5

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