Waveguide-confining layer with gain medium to emit subwavelength lasers, and method to form same
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United States of America Patent
Stats
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Jul 5, 2022
Grant Date -
Jun 24, 2021
app pub date -
Dec 18, 2019
filing date -
Dec 18, 2019
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Embodiments of the disclosure provide a waveguide-confining layer, a photonic integrated circuit (PIC) die with embodiments of a waveguide-confining layer, and methods to form the same. The waveguide-confining layer may include an oxide layer over a buried insulator layer, a silicon-based optical confinement structure embedded within or positioned on the oxide layer, and first and second blocking layers over the oxide layer and separated from each other by a horizontal slot. The first and second blocking layers include a metal or an oxide. A gain medium is positioned on the oxide layer and within the horizontal slot between the first and second blocking layers, and has a lower refractive index than each of the first and second blocking layers. The gain medium is vertically aligned with the silicon-based optical confinement structure, and a portion of the oxide layer separates the gain medium from the silicon-based optical confinement structure.
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International Classification(s)
- 2019 Application Filing Year
- H01S Class
- 1484 Applications Filed
- 1111 Patents Issued To-Date
- 74.87 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- H01S Class
- 0 % this patent is cited more than
- 3 Age
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