American Journal of Optics and Photonics

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Monolithic Integration of a Multiwavelength Laser Array Associated with SBG Semiconductor Lasers

Received: Nov. 06, 2022    Accepted: Nov. 21, 2022    Published: Nov. 29, 2022
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Abstract

There are strong demands of monolithically integrated photonic components for future high capacity optical networks such as those for data center, fifth-generation fronthaul or wavelength-division multiplexing systems. Monolithically integrated multiwavelength laser array (MLA) is a potential photonic component used in the above applications. The monolithically integrated MLA associated with sampled Bragg grating (SBG) semiconductor lasers is proposed and studied here. It is shown in the results that a controllable phase shift can be introduced into the central part of the cavity to tune the lasing wavelength. The effective refractive index along the phase-shift-controlled (PSC) parts was different from those of the side parts with the different currents injected into the PSC parts and the side parts. So the optical path length along the PSC part changed for the lasing wavelength. In other words, an appropriate distributed phase shift along the PSC part could be introduced accordingly. Besides, it is found in the results that the longitudinal photon density distribution of the proposed structure is much flatter than that of the λ/4 phase-shift structure. Hence, the longitudinal spatial hole burning (SHB) is reduced more effectively. The single longitudinal mode (SLM) stability is better than that of the common λ/4 phase-shift structure at high injection currents accordingly. A twelve-channel SBG MLA with 50-GHz wavelength spacing was fabricated in the experiment. The channel frequency ranges from 192.70 THz to 192.15 THz. Its operation at designed wavelengths was demonstrated. High side mode suppression ratios (SMSRs) of all channels over 57 dB were observed as well. This paves the way for a compact and cost-efficient light source for large-scale photonic integrated circuit devices.

DOI 10.11648/j.ajop.20221004.11
Published in American Journal of Optics and Photonics ( Volume 10, Issue 4, December 2022 )
Page(s) 23-28
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This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Multiwavelength Laser Array, Sampled Bragg Grating, Spatial Hole Burning

References
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  • APA Style

    Renjia Guo, Jing Wu, Dikui Mei, Ping Wang, Lili Liu, et al. (2022). Monolithic Integration of a Multiwavelength Laser Array Associated with SBG Semiconductor Lasers. American Journal of Optics and Photonics, 10(4), 23-28. https://doi.org/10.11648/j.ajop.20221004.11

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    ACS Style

    Renjia Guo; Jing Wu; Dikui Mei; Ping Wang; Lili Liu, et al. Monolithic Integration of a Multiwavelength Laser Array Associated with SBG Semiconductor Lasers. Am. J. Opt. Photonics 2022, 10(4), 23-28. doi: 10.11648/j.ajop.20221004.11

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    AMA Style

    Renjia Guo, Jing Wu, Dikui Mei, Ping Wang, Lili Liu, et al. Monolithic Integration of a Multiwavelength Laser Array Associated with SBG Semiconductor Lasers. Am J Opt Photonics. 2022;10(4):23-28. doi: 10.11648/j.ajop.20221004.11

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  • @article{10.11648/j.ajop.20221004.11,
      author = {Renjia Guo and Jing Wu and Dikui Mei and Ping Wang and Lili Liu and Jichu Dong},
      title = {Monolithic Integration of a Multiwavelength Laser Array Associated with SBG Semiconductor Lasers},
      journal = {American Journal of Optics and Photonics},
      volume = {10},
      number = {4},
      pages = {23-28},
      doi = {10.11648/j.ajop.20221004.11},
      url = {https://doi.org/10.11648/j.ajop.20221004.11},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.ajop.20221004.11},
      abstract = {There are strong demands of monolithically integrated photonic components for future high capacity optical networks such as those for data center, fifth-generation fronthaul or wavelength-division multiplexing systems. Monolithically integrated multiwavelength laser array (MLA) is a potential photonic component used in the above applications. The monolithically integrated MLA associated with sampled Bragg grating (SBG) semiconductor lasers is proposed and studied here. It is shown in the results that a controllable phase shift can be introduced into the central part of the cavity to tune the lasing wavelength. The effective refractive index along the phase-shift-controlled (PSC) parts was different from those of the side parts with the different currents injected into the PSC parts and the side parts. So the optical path length along the PSC part changed for the lasing wavelength. In other words, an appropriate distributed phase shift along the PSC part could be introduced accordingly. Besides, it is found in the results that the longitudinal photon density distribution of the proposed structure is much flatter than that of the λ/4 phase-shift structure. Hence, the longitudinal spatial hole burning (SHB) is reduced more effectively. The single longitudinal mode (SLM) stability is better than that of the common λ/4 phase-shift structure at high injection currents accordingly. A twelve-channel SBG MLA with 50-GHz wavelength spacing was fabricated in the experiment. The channel frequency ranges from 192.70 THz to 192.15 THz. Its operation at designed wavelengths was demonstrated. High side mode suppression ratios (SMSRs) of all channels over 57 dB were observed as well. This paves the way for a compact and cost-efficient light source for large-scale photonic integrated circuit devices.},
     year = {2022}
    }
    

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  • TY  - JOUR
    T1  - Monolithic Integration of a Multiwavelength Laser Array Associated with SBG Semiconductor Lasers
    AU  - Renjia Guo
    AU  - Jing Wu
    AU  - Dikui Mei
    AU  - Ping Wang
    AU  - Lili Liu
    AU  - Jichu Dong
    Y1  - 2022/11/29
    PY  - 2022
    N1  - https://doi.org/10.11648/j.ajop.20221004.11
    DO  - 10.11648/j.ajop.20221004.11
    T2  - American Journal of Optics and Photonics
    JF  - American Journal of Optics and Photonics
    JO  - American Journal of Optics and Photonics
    SP  - 23
    EP  - 28
    PB  - Science Publishing Group
    SN  - 2330-8494
    UR  - https://doi.org/10.11648/j.ajop.20221004.11
    AB  - There are strong demands of monolithically integrated photonic components for future high capacity optical networks such as those for data center, fifth-generation fronthaul or wavelength-division multiplexing systems. Monolithically integrated multiwavelength laser array (MLA) is a potential photonic component used in the above applications. The monolithically integrated MLA associated with sampled Bragg grating (SBG) semiconductor lasers is proposed and studied here. It is shown in the results that a controllable phase shift can be introduced into the central part of the cavity to tune the lasing wavelength. The effective refractive index along the phase-shift-controlled (PSC) parts was different from those of the side parts with the different currents injected into the PSC parts and the side parts. So the optical path length along the PSC part changed for the lasing wavelength. In other words, an appropriate distributed phase shift along the PSC part could be introduced accordingly. Besides, it is found in the results that the longitudinal photon density distribution of the proposed structure is much flatter than that of the λ/4 phase-shift structure. Hence, the longitudinal spatial hole burning (SHB) is reduced more effectively. The single longitudinal mode (SLM) stability is better than that of the common λ/4 phase-shift structure at high injection currents accordingly. A twelve-channel SBG MLA with 50-GHz wavelength spacing was fabricated in the experiment. The channel frequency ranges from 192.70 THz to 192.15 THz. Its operation at designed wavelengths was demonstrated. High side mode suppression ratios (SMSRs) of all channels over 57 dB were observed as well. This paves the way for a compact and cost-efficient light source for large-scale photonic integrated circuit devices.
    VL  - 10
    IS  - 4
    ER  - 

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Author Information
  • School of Physics and Electronic Engineering, Jiangsu Intelligent Optoelectronic Devices and Measurement and Control Engineering Research Center, Yancheng Teachers University, Yancheng, China

  • School of Biological Science and Technology, Yangzhou University, Yangzhou, China

  • School of Physics and Electronic Engineering, Jiangsu Intelligent Optoelectronic Devices and Measurement and Control Engineering Research Center, Yancheng Teachers University, Yancheng, China

  • Yancheng Tongji Automotive Parts Limited Corporation, Yancheng, China

  • Jiangsu Tongji Analytical Instrument Limited Corporation, Yancheng, China

  • Yancheng Jinzhou Machinery Manufacturing Limited Corporation, Yancheng, China

  • Section