High power surface emitting terahertz laser with hybrid second- and fourth-order Bragg gratings

Proper design of the gratings can enhance the efficiency of distributed-feedback and quantum cascade lasers. Here, Jin et al. use a hybrid grating system that superposes second- and fourth-order Bragg gratings and achieve high radiative efficiency and a single-lobe radiation pattern.

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Detalles Bibliográficos
Autores principales: Yuan Jin, Liang Gao, Ji Chen, Chongzhao Wu, John L. Reno, Sushil Kumar
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2018
Materias:
Q
Acceso en línea:https://doaj.org/article/86f750903414488e8f434f50cd50097e
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Descripción
Sumario:Proper design of the gratings can enhance the efficiency of distributed-feedback and quantum cascade lasers. Here, Jin et al. use a hybrid grating system that superposes second- and fourth-order Bragg gratings and achieve high radiative efficiency and a single-lobe radiation pattern.