Gain-guided broad area quantum cascade lasers emitting 23.5 W peak power at room temperature

Gain-guided broad area quantum cascade lasers emitting 23.5 W peak power at room temperature

We report gain-guided broad area quantum cascade lasers at 4.55 μm. The devices were processed in a buried heterostructure configuration with a current injector section much narrower than the active region. They demonstrate 23.5 W peak power at a temperature of 20°C and duty cycle of 1%, while their...

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Veröffentlicht in:Optics express 2016-08, Vol.24 (17), p.19063-19071
Hauptverfasser: Sergachev, Ilia, Maulini, Richard, Bismuto, Alfredo, Blaser, Stephane, Gresch, Tobias, Muller, Antoine
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container_end_page 19071
container_issue 17
container_start_page 19063
container_title Optics express
container_volume 24
creator Sergachev, Ilia
Maulini, Richard
Bismuto, Alfredo
Blaser, Stephane
Gresch, Tobias
Muller, Antoine
description We report gain-guided broad area quantum cascade lasers at 4.55 μm. The devices were processed in a buried heterostructure configuration with a current injector section much narrower than the active region. They demonstrate 23.5 W peak power at a temperature of 20°C and duty cycle of 1%, while their far field consists of a single symmetric lobe centered on the optical axis. These experimental results are supported well by 2D numerical simulations of electric currents and optical fields in a device cross-section.
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title Gain-guided broad area quantum cascade lasers emitting 23.5 W peak power at room temperature
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