High power 3-12 μm infrared lasers: Recent improvements and future trends

Manijeh Razeghi; Steven Boyd Slivken; A. Tahraoui; A. Matlis; Y. S. Park

doi:10.1016/S1386-9477(01)00210-7

High power 3-12 μm infrared lasers: Recent improvements and future trends

Manijeh Razeghi, Steven Boyd Slivken, A. Tahraoui, A. Matlis, Y. S. Park

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

In this paper, we discuss the progress of quantum cascade lasers (QCLs) grown by gas-source molecular beam epitaxy. Room temperature QCL operation has been reported for lasers emitting between 5-11 μm, with 9-11 μm lasers operating up to 425 K. Laser technology for the 3-5 μm range takes advantage of a strain-balanced active layer design. We also demonstrate record room temperature peak output powers at 9 and 11 μm (2.5 and 1 W, respectively) as well as record low 80 K threshold current densities (250 A/cm²) for some laser designs. Preliminary distributed feedback (DFB) results are also presented and exhibit single mode operation for 9 μm lasers at room temperature.

Original language	English (US)
Pages (from-to)	233-239
Number of pages	7
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	11
Issue number	2-3
DOIs	https://doi.org/10.1016/S1386-9477(01)00210-7
State	Published - Jan 1 2001

Keywords

Gas-source molecular beam epitaxy
InP-based material
Quantum cascade laser
Wavefunction engineering

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics

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10.1016/S1386-9477(01)00210-7

Cite this

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abstract = "In this paper, we discuss the progress of quantum cascade lasers (QCLs) grown by gas-source molecular beam epitaxy. Room temperature QCL operation has been reported for lasers emitting between 5-11 μm, with 9-11 μm lasers operating up to 425 K. Laser technology for the 3-5 μm range takes advantage of a strain-balanced active layer design. We also demonstrate record room temperature peak output powers at 9 and 11 μm (2.5 and 1 W, respectively) as well as record low 80 K threshold current densities (250 A/cm2) for some laser designs. Preliminary distributed feedback (DFB) results are also presented and exhibit single mode operation for 9 μm lasers at room temperature.",

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AU - Park, Y. S.

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High power 3-12 μm infrared lasers: Recent improvements and future trends

Abstract

Keywords

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