Photonics Research, Volume. 12, Issue 9, 1991(2024)

Quantum dot fourth-harmonic colliding pulse mode-locked laser for high-power optical comb generation

Jing-Zhi Huang1...2, Bo Yang1,2, Jia-Jian Chen1,3, Jia-Le Qin1,2, Xinlun Cai4, Jie Yan5, Xi Xiao5, Zi-Hao Wang1,2,3,6, Ting Wang1,2,3,*, and Jian-Jun Zhang1,23 |Show fewer author(s)
Author Affiliations
  • 1Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • 2Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
  • 3Songshan Lake Materials Laboratory, Dongguan 523808, China
  • 4State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou 510275, China
  • 5National Information Optoelectronics Innovation Center, Wuhan 430074, China
  • 6e-mail: wangzihao@iphy.ac.cn
  • show less
    Figures & Tables(4)
    (a) Illustration of epitaxial layers of InAs QD lasers; (b) cross-sectional SEM image of fabricated QD-CPML; (c) schematic of this 200 GHz QD-CMPL (inset, the top-view microscopic image of 200 GHz QD-CPML); (d) photograph of device after wire-bonding and butterfly packaging.
    (a) L-I characteristics of 200 GHz fourth-order CPML under changed temperature from 20°C to 85°C at reverse bias of 0 V and (b) changed reverse bias from 0 to 5 V at room temperature; (c) optical spectrum with 12 channels within 3 dB optical bandwidth at I=237 mA, VR=4.1 V, T=23°C; (d) optical mapping of this device under current from 40 to 250 mA and reverse bias from 0 to 5 V at room temperature.
    (a) Experimental setup for the measurement of FROG (I), linewidth (II) and RIN (III); (b) optical spectrum of this QD-CPML at I=165 mA, VR=1.5 V, T=23°C; (c) time-resolved spectrum and autocorrelation curve measured by FROG; (d) RIN and (e) optical linewidth of four individual channels after optical bandpass filter; (c), (d), and (e) are characterized at the same set of working conditions as (b).
    (a) Experimental arrangement for transmission measurements, including optical bandpass filter, polarization controller, arbitrary waveform generator, RF amplifier, thin-film lithium niobate Mach–Zehnder modulator, and optical sampling oscilloscope; (b) 100 Gbaud PAM-4 and (c) 90 Gbaud PAM-8 optical eye diagrams with outer extinction ratio of four individual comb lines.
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    Jing-Zhi Huang, Bo Yang, Jia-Jian Chen, Jia-Le Qin, Xinlun Cai, Jie Yan, Xi Xiao, Zi-Hao Wang, Ting Wang, Jian-Jun Zhang, "Quantum dot fourth-harmonic colliding pulse mode-locked laser for high-power optical comb generation," Photonics Res. 12, 1991 (2024)

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Apr. 23, 2024

    Accepted: Jul. 3, 2024

    Published Online: Aug. 28, 2024

    The Author Email: Ting Wang (wangting@iphy.ac.cn)

    DOI:10.1364/PRJ.525382

    CSTR:32188.14.PRJ.525382

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