Active-region designs in quantum cascade lasers

Journal Article · Wed Oct 31 00:00:00 EDT 2012 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2012V042N10ABEH014910· OSTI ID:22066644

Zasavitskii, I I ^[1]

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1. P N Lebedev Physical Institute, Russian Academy of Sciences, Moscow (Russian Federation)

This paper analyses the development of active-region designs in quantum cascade lasers. Active-region designs have been demonstrated to date that employ various radiative transitions (vertical, diagonal, interminiband and interband). The lower laser level is depopulated through nonradiative transitions, such as one- or two-phonon (and even three-phonon) relaxation or bound state {yields} continuum transitions. Advances in active-region designs and energy diagram optimisation in the past few years have led to significant improvements in important characteristics of quantum cascade lasers, such as their output power, emission bandwidth, characteristic temperature and efficiency. (invited paper)

• OSTI ID: 22066644
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 42, Issue 10; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
47 OTHER INSTRUMENTATION
BOUND STATE
DESIGN
EFFICIENCY
EMISSION
LASERS
LEVEL WIDTHS
OPTIMIZATION
PHONONS
QUANTUM MECHANICS
RELAXATION