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Photonic Crystal Surface Emitting GaSb-Based Type-I Quantum Well Diode Lasers

Journal Article · · IEEE Journal of Selected Topics in Quantum Electronics
The GaSb-based epitaxially regrown monolithic diode PCSELs operating near 2 μm at room temperature in continuous wave regime and generating 30 mW of output power from 200 μm diameter aperture have been designed and fabricated. Here, the devices demonstrated CW threshold current density of about 500 A/cm 2. The laser output power was enhanced thanks to increased buried void area fill-factor in the photonic crystal layer with multiple voids per unit cell. The PCSEL generated ultra-low divergence donut shape beams at the currents near threshold. At higher injection currents, the device brightness was limited by excitation of the higher order lateral modes. Generation of the vector-vortex beams of different types by different band edge states of the buried photonic crystal was observed.
Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); US Army Research Office (ARO)
Grant/Contract Number:
SC0012704
OSTI ID:
2452786
Report Number(s):
BNL--226211-2024-JAAM
Journal Information:
IEEE Journal of Selected Topics in Quantum Electronics, Journal Name: IEEE Journal of Selected Topics in Quantum Electronics Journal Issue: 2 Vol. 31; ISSN 1077-260X
Publisher:
IEEE Lasers and Electro-optics SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (12)

Electrically Pumped Epitaxially Regrown GaSb‐Based Type‐I Quantum‐Well Surface‐Emitting Lasers with Buried High‐Index‐Contrast Photonic Crystal Layer journal October 2021
Comparison of Thermal and Atomic-Hydrogen-Assisted Oxide Desorption Methods for Regrowth of GaSb-Based Cascade Diode Lasers journal July 2021
Watt-class high-power, high-beam-quality photonic-crystal lasers journal April 2014
Double-lattice photonic-crystal resonators enabling high-brightness semiconductor lasers with symmetric narrow-divergence beams journal December 2018
Wide-bandgap GaN-based watt-class photonic-crystal lasers journal October 2022
Void engineering in epitaxially regrown GaAs-based photonic crystal surface emitting lasers by grating profile design journal January 2021
Interband Cascade Lasers With Low Threshold Powers and High Output Powers journal July 2013
Cascade Pumping of 1.9–3.3 μm Type-I Quantum Well GaSb-Based Diode Lasers journal November 2017
High-power CW oscillation of 1.3-µm wavelength InP-based photonic-crystal surface-emitting lasers journal July 2022
High-power narrow spectrum GaSb-based DBR lasers emitting near 21  µm journal January 2021
Improved power and far-field pattern of surface-emitting quantum cascade lasers with strain compensation to operate at 4.3 μm journal April 2022
Air-Hole Retained Growth by Molecular Beam Epitaxy for Fabricating GaAs-Based Photonic-Crystal Lasers journal April 2013

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