Epitaxially re-grown quantum dot-based photonic crystal surface emitting laser

Aye S. M. Kyaw; Ben C. King; Adam F. McKenzie; Neil D. Gerrard; Zijun Bian; Daehyun Kim; Jingzhao Liu; Xingyu Zhao; Kenichi Nishi; Keizo Takemasa; Mitsuru Sugawara; I. M. Butler; David T. D. Childs; Calum H. Hill; Richard J. E. Taylor; Richard A. Hogg

doi:10.1117/12.2649087

15 March 2023 Epitaxially re-grown quantum dot-based photonic crystal surface emitting laser

Aye S. M. Kyaw, Ben C. King, Adam F. McKenzie, Neil D. Gerrard, Zijun Bian, Daehyun Kim, Jingzhao Liu, Xingyu Zhao, Kenichi Nishi, Keizo Takemasa, Mitsuru Sugawara, I. M. Butler, David T. D. Childs, Calum H. Hill, Richard J. E. Taylor, Richard A. Hogg

Author Affiliations +

Proceedings Volume 12440, Novel In-Plane Semiconductor Lasers XXII; 124400F (2023) https://doi.org/10.1117/12.2649087
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

We report epitaxially regrown Photonic Crystal Surface-Emitting Lasers (PCSELs) utilizing self-assembled InAs quantum dots (QDs) exhibiting lasing at room temperature. The ability to utilize both the ground-state (GS) and excited-state (ES) of the QDs allows multiple emission wavelengths from one heterostructure. The choice of the grating periods of the photonic crystal allows lasing from neighbouring devices at the GS (~1230 nm) or ES (~1140 nm) of the QDs, 90 nm apart in wavelength. The threshold current densities are 0.69 kA/cm² and 1.05 kA/cm² for GS and ES respectively. The effect of PC structures, specifically etch depth of the PC on lasing performance is also discussed.

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Aye S. M. Kyaw, Ben C. King, Adam F. McKenzie, Neil D. Gerrard, Zijun Bian, Daehyun Kim, Jingzhao Liu, Xingyu Zhao, Kenichi Nishi, Keizo Takemasa, Mitsuru Sugawara, I. M. Butler, David T. D. Childs, Calum H. Hill, Richard J. E. Taylor, and Richard A. Hogg "Epitaxially re-grown quantum dot-based photonic crystal surface emitting laser", Proc. SPIE 12440, Novel In-Plane Semiconductor Lasers XXII, 124400F (15 March 2023); https://doi.org/10.1117/12.2649087

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