Room-temperature continuous-wave quantum cascade lasers grown by MOCVD without lateral regrowth

Zhijun Liu; Daniel Wasserman; Scott S. Howard; Anthony J. Hoffman; Claire F. Gmachl; Xiaojun Wang; Tawee Tanbun-Ek; Liwei Cheng; Fow Sen Choa

doi:10.1109/LPT.2006.877006

Room-temperature continuous-wave quantum cascade lasers grown by MOCVD without lateral regrowth

Zhijun Liu, Daniel Wasserman, Scott S. Howard, Anthony J. Hoffman, Claire F. Gmachl, Xiaojun Wang, Tawee Tanbun-Ek, Liwei Cheng, Fow Sen Choa

Biochemistry, Chemistry & Physics

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

123 Scopus citations

Abstract

We report on room-temperature continuous-wave (CW) operation of λ ∼ 8.2 μm quantum cascade lasers grown by metal-organic chemical vapor deposition without lateral re-growth. The lasers have been processed as double-channel ridge waveguides with thick electroplated gold. CW output power of 5.3 mW is measured at 300 K with a threshold current density of 2.63 kA/cm². The measured gain at room temperature is close to the theoretical design, which enables the lasers to overcome the relatively high waveguide loss.

Original language	English
Pages (from-to)	1347-1349
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	18
Issue number	12
DOIs	https://doi.org/10.1109/LPT.2006.877006
State	Published - Jun 15 2006

Scopus Subject Areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

Keywords

Continuous-wave (CW) lasers
Midinfrared
Quantum cascade (QC) lasers
Semiconductor lasers

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10.1109/LPT.2006.877006

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title = "Room-temperature continuous-wave quantum cascade lasers grown by MOCVD without lateral regrowth",

abstract = "We report on room-temperature continuous-wave (CW) operation of λ ∼ 8.2 μm quantum cascade lasers grown by metal-organic chemical vapor deposition without lateral re-growth. The lasers have been processed as double-channel ridge waveguides with thick electroplated gold. CW output power of 5.3 mW is measured at 300 K with a threshold current density of 2.63 kA/cm2. The measured gain at room temperature is close to the theoretical design, which enables the lasers to overcome the relatively high waveguide loss.",

keywords = "Continuous-wave (CW) lasers, Midinfrared, Quantum cascade (QC) lasers, Semiconductor lasers",

author = "Zhijun Liu and Daniel Wasserman and Howard, {Scott S.} and Hoffman, {Anthony J.} and Gmachl, {Claire F.} and Xiaojun Wang and Tawee Tanbun-Ek and Liwei Cheng and Choa, {Fow Sen}",

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doi = "10.1109/LPT.2006.877006",

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journal = "IEEE Photonics Technology Letters",

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T1 - Room-temperature continuous-wave quantum cascade lasers grown by MOCVD without lateral regrowth

AU - Liu, Zhijun

AU - Wasserman, Daniel

AU - Howard, Scott S.

AU - Hoffman, Anthony J.

AU - Gmachl, Claire F.

AU - Wang, Xiaojun

AU - Tanbun-Ek, Tawee

AU - Cheng, Liwei

AU - Choa, Fow Sen

PY - 2006/6/15

Y1 - 2006/6/15

N2 - We report on room-temperature continuous-wave (CW) operation of λ ∼ 8.2 μm quantum cascade lasers grown by metal-organic chemical vapor deposition without lateral re-growth. The lasers have been processed as double-channel ridge waveguides with thick electroplated gold. CW output power of 5.3 mW is measured at 300 K with a threshold current density of 2.63 kA/cm2. The measured gain at room temperature is close to the theoretical design, which enables the lasers to overcome the relatively high waveguide loss.

AB - We report on room-temperature continuous-wave (CW) operation of λ ∼ 8.2 μm quantum cascade lasers grown by metal-organic chemical vapor deposition without lateral re-growth. The lasers have been processed as double-channel ridge waveguides with thick electroplated gold. CW output power of 5.3 mW is measured at 300 K with a threshold current density of 2.63 kA/cm2. The measured gain at room temperature is close to the theoretical design, which enables the lasers to overcome the relatively high waveguide loss.

KW - Continuous-wave (CW) lasers

KW - Midinfrared

KW - Quantum cascade (QC) lasers

KW - Semiconductor lasers

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EP - 1349

JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

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ER -

Room-temperature continuous-wave quantum cascade lasers grown by MOCVD without lateral regrowth

Abstract

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