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Micro-transfer printing of O-band InAs/GaAs quantum-dot SOAs on silicon photonic integrated circuits

Yang Liu (UGent) , Jing Zhang (UGent) , Laurens Bogaert (UGent) , Emadreza Soltanian (UGent) , Evangelia Delli (UGent) , Konstantin Morozov, Sergey Mikhrin, Johanna Rimboeck, Guy Lepage, Peter Verheyen, et al.
(2025) PHOTONICS RESEARCH. 13(5). p.1341-1352
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Organization
Abstract
Silicon photonics (SiPh) technology has become a key platform for developing photonic integrated circuits due to its CMOS compatibility and scalable manufacturing. However, integrating efficient on-chip optical sources and in-line amplifiers remains challenging due to silicon's indirect bandgap. In this study, we developed prefabricated standardized InAs/GaAs quantum-dot (QD) active devices optimized for micro-transfer printing and successfully integrated them on SiPh integrated circuits. By transfer-printing standardized QD devices onto specific regions of the SiPh chip, we realized O-band semiconductor optical amplifiers (SOAs), distributed feedback (DFB) lasers, and widely tunable lasers (TLs). The SOAs reached an on-chip gain of 7.5 dB at 1299 nm and maintained stable performance across a wide input power range. The integrated DFB lasers achieved waveguide (WG)-coupled output powers of up to 19.7 mW, with a side-mode suppression ratio (SMSR) of 33.3 dB, and demonstrated notable robustness against optical feedback, supporting error-free data rates of 30 Gbps without additional isolators. Meanwhile, the TLs demonstrated a wavelength tuning range exceeding 35 nm, and a WG-coupled output power greater than 3 mW. The micro-transfer printing approach effectively decouples the fabrication of non-native devices from the SiPh process, allowing back-end integration of the III-V devices. Our approach offers a viable path toward fully integrated III-V/SiPh platforms capable of supporting high-speed, high-capacity communication. (c) 2025 Chinese Laser Press
Keywords
OPTICAL FEEDBACK DYNAMICS, COHERENCE-COLLAPSE, RECOMBINATION PROCESSES, TEMPERATURE-DEPENDENCE, LASERS, PERFORMANCE, THRESHOLD, FREQUENCY, ISOLATOR, DIODES

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MLA
Liu, Yang, et al. “Micro-Transfer Printing of O-Band InAs/GaAs Quantum-Dot SOAs on Silicon Photonic Integrated Circuits.” PHOTONICS RESEARCH, vol. 13, no. 5, 2025, pp. 1341–52, doi:10.1364/PRJ.545946.
APA
Liu, Y., Zhang, J., Bogaert, L., Soltanian, E., Delli, E., Morozov, K., … Roelkens, G. (2025). Micro-transfer printing of O-band InAs/GaAs quantum-dot SOAs on silicon photonic integrated circuits. PHOTONICS RESEARCH, 13(5), 1341–1352. https://doi.org/10.1364/PRJ.545946
Chicago author-date
Liu, Yang, Jing Zhang, Laurens Bogaert, Emadreza Soltanian, Evangelia Delli, Konstantin Morozov, Sergey Mikhrin, et al. 2025. “Micro-Transfer Printing of O-Band InAs/GaAs Quantum-Dot SOAs on Silicon Photonic Integrated Circuits.” PHOTONICS RESEARCH 13 (5): 1341–52. https://doi.org/10.1364/PRJ.545946.
Chicago author-date (all authors)
Liu, Yang, Jing Zhang, Laurens Bogaert, Emadreza Soltanian, Evangelia Delli, Konstantin Morozov, Sergey Mikhrin, Johanna Rimboeck, Guy Lepage, Peter Verheyen, Joris Van Campenhout, Peter Ossieur, Geert Morthier, and Günther Roelkens. 2025. “Micro-Transfer Printing of O-Band InAs/GaAs Quantum-Dot SOAs on Silicon Photonic Integrated Circuits.” PHOTONICS RESEARCH 13 (5): 1341–1352. doi:10.1364/PRJ.545946.
Vancouver
1.
Liu Y, Zhang J, Bogaert L, Soltanian E, Delli E, Morozov K, et al. Micro-transfer printing of O-band InAs/GaAs quantum-dot SOAs on silicon photonic integrated circuits. PHOTONICS RESEARCH. 2025;13(5):1341–52.
IEEE
[1]
Y. Liu et al., “Micro-transfer printing of O-band InAs/GaAs quantum-dot SOAs on silicon photonic integrated circuits,” PHOTONICS RESEARCH, vol. 13, no. 5, pp. 1341–1352, 2025.
@article{01K0Y7DK7ZXDT4AV4CZHP3FEFB,
  abstract     = {{Silicon photonics (SiPh) technology has become a key platform for developing photonic integrated circuits due to its CMOS compatibility and scalable manufacturing. However, integrating efficient on-chip optical sources and in-line amplifiers remains challenging due to silicon's indirect bandgap. In this study, we developed prefabricated standardized InAs/GaAs quantum-dot (QD) active devices optimized for micro-transfer printing and successfully integrated them on SiPh integrated circuits. By transfer-printing standardized QD devices onto specific regions of the SiPh chip, we realized O-band semiconductor optical amplifiers (SOAs), distributed feedback (DFB) lasers, and widely tunable lasers (TLs). The SOAs reached an on-chip gain of 7.5 dB at 1299 nm and maintained stable performance across a wide input power range. The integrated DFB lasers achieved waveguide (WG)-coupled output powers of up to 19.7 mW, with a side-mode suppression ratio (SMSR) of 33.3 dB, and demonstrated notable robustness against optical feedback, supporting error-free data rates of 30 Gbps without additional isolators. Meanwhile, the TLs demonstrated a wavelength tuning range exceeding 35 nm, and a WG-coupled output power greater than 3 mW. The micro-transfer printing approach effectively decouples the fabrication of non-native devices from the SiPh process, allowing back-end integration of the III-V devices. Our approach offers a viable path toward fully integrated III-V/SiPh platforms capable of supporting high-speed, high-capacity communication. (c) 2025 Chinese Laser Press}},
  author       = {{Liu, Yang and Zhang, Jing and Bogaert, Laurens and Soltanian, Emadreza and Delli, Evangelia and Morozov, Konstantin and Mikhrin, Sergey and Rimboeck, Johanna and Lepage, Guy and Verheyen, Peter and Van Campenhout, Joris and Ossieur, Peter and Morthier, Geert and Roelkens, Günther}},
  issn         = {{2327-9125}},
  journal      = {{PHOTONICS RESEARCH}},
  keywords     = {{OPTICAL FEEDBACK DYNAMICS,COHERENCE-COLLAPSE,RECOMBINATION PROCESSES,TEMPERATURE-DEPENDENCE,LASERS,PERFORMANCE,THRESHOLD,FREQUENCY,ISOLATOR,DIODES}},
  language     = {{eng}},
  number       = {{5}},
  pages        = {{1341--1352}},
  title        = {{Micro-transfer printing of O-band InAs/GaAs quantum-dot SOAs on silicon photonic integrated circuits}},
  url          = {{http://doi.org/10.1364/PRJ.545946}},
  volume       = {{13}},
  year         = {{2025}},
}
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