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Continuous-wave interband cascade lasers operating above room temperature at λ = 4.7-5.6 µm.
Bewley, William W; Canedy, Chadwick L; Kim, Chul Soo; Kim, Mijin; Merritt, Charles D; Abell, Joshua; Vurgaftman, Igor; Meyer, Jerry R.
Afiliación
  • Bewley WW; Naval Research Laboratory, Washington, DC 20375, USA.
Opt Express ; 20(3): 3235-40, 2012 Jan 30.
Article en En | MEDLINE | ID: mdl-22330561
ABSTRACT
We have substantially improved the performance of interband cascade lasers emitting at λ = 4.7 and 5.6 µm, by applying the recently-pioneered approach of heavily doping the injector regions to rebalance the electron and hole concentrations in the active quantum wells. Ridges of ≈10 µm width, 4 mm length, and high-reflectivity back facets achieve maximum continuous wave operating temperatures of 60°C and 48°C, respectively. The threshold power density of ≈1 kW/cm2 at T = 25°C is over an order of magnitude lower than for state-of-the-art quantum cascade lasers emitting in this spectral range.
Asunto(s)

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Rayos Láser Idioma: En Revista: Opt Express Asunto de la revista: OFTALMOLOGIA Año: 2012 Tipo del documento: Article País de afiliación: Estados Unidos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Rayos Láser Idioma: En Revista: Opt Express Asunto de la revista: OFTALMOLOGIA Año: 2012 Tipo del documento: Article País de afiliación: Estados Unidos
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