Tunable quantum-cascade VECSEL operating at 1.9 THz

We report a terahertz quantum-cascade vertical-external-cavity surface-emitting laser (QC-VECSEL) emitting around 1.9 THz with up to 10% continuous fractional frequency tuning of a single laser mode. The device shows lasing operation in pulsed mode up to 102 K in a high-quality beam, with the maximu...

Full description

Saved in:
Bibliographic Details
Published in:Optics express 2021-10, Vol.29 (21), p.34695-34706
Main Authors: Wu, Yu, Shen, Yue, Addamane, Sadhvikas, Reno, John L., Williams, Benjamin S.
Format: Article
Language:English
Subjects:
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We report a terahertz quantum-cascade vertical-external-cavity surface-emitting laser (QC-VECSEL) emitting around 1.9 THz with up to 10% continuous fractional frequency tuning of a single laser mode. The device shows lasing operation in pulsed mode up to 102 K in a high-quality beam, with the maximum output power of 37 mW and slope efficiency of 295 mW/A at 77 K. Challenges for up-scaling the operating wavelength in QC metasurface VECSELs are identified.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.438636