Injectorless quantum-cascade lasers

Michael C. Wanke; Federico Capasso; Claire Gmachl; Alessandro Tredicucci; Deborah L. Sivco; Albert L. Hutchinson; S. N.George Chu; Alfred Y. Cho

doi:10.1063/1.1378805

Injectorless quantum-cascade lasers

Michael C. Wanke, Federico Capasso, Claire Gmachl, Alessandro Tredicucci, Deborah L. Sivco, Albert L. Hutchinson, S. N.George Chu, Alfred Y. Cho

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

48 Scopus citations

Abstract

An "injectorless" quantum-cascade (QC) laser is presented. The requirement of using injector regions to transport electrons from the lower laser level and other low-lying energy levels of one active region to the upper laser level of the next electron-downstream active region was eliminated by using an appropriately designed double-quantum-well "chirped" superlattice active region. The major advantage of the "injectorless" QC laser is the close packing of the active regions and the concomitant large optical confinement factor. Using a cascade of 75 consecutive active regions, designed for emission at λ = 11.5 μm, a pulsed peak output power of 270 mW is achieved at 7 K and approximately 10 mW at the maximum operating temperature of 195 K.

Original language	English (US)
Pages (from-to)	3950-3952
Number of pages	3
Journal	Applied Physics Letters
Volume	78
Issue number	25
DOIs	https://doi.org/10.1063/1.1378805
State	Published - Jun 18 2001
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.1378805

Cite this

@article{dfab6ce03fed4905b4b51cab34037824,

title = "Injectorless quantum-cascade lasers",

abstract = "An {"}injectorless{"} quantum-cascade (QC) laser is presented. The requirement of using injector regions to transport electrons from the lower laser level and other low-lying energy levels of one active region to the upper laser level of the next electron-downstream active region was eliminated by using an appropriately designed double-quantum-well {"}chirped{"} superlattice active region. The major advantage of the {"}injectorless{"} QC laser is the close packing of the active regions and the concomitant large optical confinement factor. Using a cascade of 75 consecutive active regions, designed for emission at λ = 11.5 μm, a pulsed peak output power of 270 mW is achieved at 7 K and approximately 10 mW at the maximum operating temperature of 195 K.",

author = "Wanke, \{Michael C.\} and Federico Capasso and Claire Gmachl and Alessandro Tredicucci and Sivco, \{Deborah L.\} and Hutchinson, \{Albert L.\} and Chu, \{S. N.George\} and Cho, \{Alfred Y.\}",

year = "2001",

month = jun,

day = "18",

doi = "10.1063/1.1378805",

language = "English (US)",

volume = "78",

pages = "3950--3952",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "25",

}

TY - JOUR

T1 - Injectorless quantum-cascade lasers

AU - Wanke, Michael C.

AU - Capasso, Federico

AU - Gmachl, Claire

AU - Tredicucci, Alessandro

AU - Sivco, Deborah L.

AU - Hutchinson, Albert L.

AU - Chu, S. N.George

AU - Cho, Alfred Y.

PY - 2001/6/18

Y1 - 2001/6/18

N2 - An "injectorless" quantum-cascade (QC) laser is presented. The requirement of using injector regions to transport electrons from the lower laser level and other low-lying energy levels of one active region to the upper laser level of the next electron-downstream active region was eliminated by using an appropriately designed double-quantum-well "chirped" superlattice active region. The major advantage of the "injectorless" QC laser is the close packing of the active regions and the concomitant large optical confinement factor. Using a cascade of 75 consecutive active regions, designed for emission at λ = 11.5 μm, a pulsed peak output power of 270 mW is achieved at 7 K and approximately 10 mW at the maximum operating temperature of 195 K.

AB - An "injectorless" quantum-cascade (QC) laser is presented. The requirement of using injector regions to transport electrons from the lower laser level and other low-lying energy levels of one active region to the upper laser level of the next electron-downstream active region was eliminated by using an appropriately designed double-quantum-well "chirped" superlattice active region. The major advantage of the "injectorless" QC laser is the close packing of the active regions and the concomitant large optical confinement factor. Using a cascade of 75 consecutive active regions, designed for emission at λ = 11.5 μm, a pulsed peak output power of 270 mW is achieved at 7 K and approximately 10 mW at the maximum operating temperature of 195 K.

UR - https://www.scopus.com/pages/publications/0040753033

UR - https://www.scopus.com/inward/citedby.url?scp=0040753033&partnerID=8YFLogxK

U2 - 10.1063/1.1378805

DO - 10.1063/1.1378805

M3 - Article

AN - SCOPUS:0040753033

SN - 0003-6951

VL - 78

SP - 3950

EP - 3952

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 25

ER -

Injectorless quantum-cascade lasers

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this