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Experimental Investigation of Ge1-XSnX Waveguide Amplified Spontaneous Emission and Theoretical Modeling Development

Li, Zairui
http://rave.ohiolink.edu/etdc/view?acc_num=dayton163949983378523

Abstract Details

2021, Doctor of Philosophy (Ph.D.), University of Dayton, Electro-Optics.
Ge1-xSnx alloys represent a new class of optically-active materials for integrated optoelectronics on-Si. In this work, rib waveguides were fabricated from highly n-type doped GeSn layers with Sn content at 4.4-7.0 % grown on Ge-buffered Si substrates. The waveguides were optically pumped using a 976 nm continuous wave laser, and the emission spectrum was collected experimentally and analyzed. The results indicate that population inversion was achieved, and optical gain via stimulated emission was observed from cavities despite the loss level in the cavity prevented the onset of lasing. Theoretical models for the waveguide emission power dependence were developed and the results were compared to the data. Several parameters were modeled to predict lasing conditions beyond experimental limits. The results show that achieving room temperature (RT) lasing from GeSn waveguides could be achieved with minor improvements in material quality and device design.
Mathews Jay, Dr. (Advisor)
136 p.
Materials Science; Optics
optical interconnects, on Si light source, GeSn, laser, amplified spontaneous emission, laser modeling

Recommended Citations

Citations

  • Li, Z. (2021). Experimental Investigation of Ge1-XSnX Waveguide Amplified Spontaneous Emission and Theoretical Modeling Development [Doctoral dissertation, University of Dayton]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=dayton163949983378523

    APA Style (7th edition)

  • Li, Zairui. Experimental Investigation of Ge1-XSnX Waveguide Amplified Spontaneous Emission and Theoretical Modeling Development. 2021. University of Dayton, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=dayton163949983378523.

    MLA Style (8th edition)

  • Li, Zairui. "Experimental Investigation of Ge1-XSnX Waveguide Amplified Spontaneous Emission and Theoretical Modeling Development." Doctoral dissertation, University of Dayton, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=dayton163949983378523

    Chicago Manual of Style (17th edition)

dayton163949983378523
187
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This open access ETD is published by University of Dayton and OhioLINK.