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Quantum cascade superluminescent light emitters with high power and compact structure

Publication ,  Journal Article
Sun, J; Hou, C; Chen, H; Zhang, J; Zhuo, N; Ning, J; Zheng, C; Wang, Z; Liu, F; Zhang, Z
Published in: Journal of Semiconductors
January 1, 2020

Quantum cascade (QC) superluminescent light emitters (SLEs) have emerged as desirable broadband mid-infrared (MIR) light sources for growing number of applications in areas like medical imaging, gas sensing and national defense. However, it is challenging to obtain a practical high-power device due to the very low efficiency of spontaneous emission in the intersubband transitions in QC structures. Herein a design of ∼5 μm SLEs is demonstrated with a two-phonon resonance-based QC active structure coupled with a compact combinatorial waveguide structure which comprises a short straight part adjacent to a tilted stripe and to a J-shaped waveguide. The as-fabricated SLEs achieve a high output power of 1.8 mW, exhibiting the potential to be integrated into array devices without taking up too much chip space. These results may facilitate the realization of SLE arrays to attain larger output power and pave the pathway towards the practical applications of broadband MIR light sources.

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Published In

Journal of Semiconductors

DOI

ISSN

1674-4926

Publication Date

January 1, 2020

Volume

41

Issue

1

Related Subject Headings

  • Applied Physics
  • 4009 Electronics, sensors and digital hardware
  • 0906 Electrical and Electronic Engineering
 

Citation

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Sun, J., Hou, C., Chen, H., Zhang, J., Zhuo, N., Ning, J., … Zhang, Z. (2020). Quantum cascade superluminescent light emitters with high power and compact structure. Journal of Semiconductors, 41(1). https://doi.org/10.1088/1674-4926/41/1/012301
Sun, J., C. Hou, H. Chen, J. Zhang, N. Zhuo, J. Ning, C. Zheng, Z. Wang, F. Liu, and Z. Zhang. “Quantum cascade superluminescent light emitters with high power and compact structure.” Journal of Semiconductors 41, no. 1 (January 1, 2020). https://doi.org/10.1088/1674-4926/41/1/012301.
Sun J, Hou C, Chen H, Zhang J, Zhuo N, Ning J, et al. Quantum cascade superluminescent light emitters with high power and compact structure. Journal of Semiconductors. 2020 Jan 1;41(1).
Sun, J., et al. “Quantum cascade superluminescent light emitters with high power and compact structure.” Journal of Semiconductors, vol. 41, no. 1, Jan. 2020. Scopus, doi:10.1088/1674-4926/41/1/012301.
Sun J, Hou C, Chen H, Zhang J, Zhuo N, Ning J, Zheng C, Wang Z, Liu F, Zhang Z. Quantum cascade superluminescent light emitters with high power and compact structure. Journal of Semiconductors. 2020 Jan 1;41(1).
Journal cover image

Published In

Journal of Semiconductors

DOI

ISSN

1674-4926

Publication Date

January 1, 2020

Volume

41

Issue

1

Related Subject Headings

  • Applied Physics
  • 4009 Electronics, sensors and digital hardware
  • 0906 Electrical and Electronic Engineering