Heterostructures of Quantum-Cascade Laser for the Spectral Range of 4.6 μm for Obtaining a Continuous-Wave Lasing Mode

被引：8
|
作者：
Babichev, A. V. [1 ]
Gladyshev, A. G. [1 ]
Dudelev, V. V. [2 ]
Karachinsky, L. Ya. [1 ,2 ,3 ]
Novikov, I. I. [1 ,2 ,3 ]
Denisov, D. V. [4 ]
Slipchenko, S. O. [2 ]
Lyutetskii, A. V. [2 ]
Pikhtin, N. A. [2 ]
Sokolovskii, G. S. [2 ]
Egorov, A. Yu. [3 ]
机构：
[1] Connector Opt LLC, St Petersburg 194292, Russia
[2] Ioffe Inst, St Petersburg 194021, Russia
[3] ITMO Univ, St Petersburg 197101, Russia
[4] St Petersburg Electrotech Univ LETI, St Petersburg 197022, Russia
来源：
TECHNICAL PHYSICS LETTERS | 2020年 / 46卷 / 05期
关键词：
superlattices; quantum-cascade laser; epitaxy; indium phosphide; WAVELENGTH; OPERATION; EMISSION;
D O I：
10.1134/S1063785020050028
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The method of molecular-beam epitaxy was used to fabricate an elastically balanced heterostructure of a quantum-cascade laser for the spectral range of 4.6 mu m based on a heteropair of solid alloys, In0.67Ga0.33As/In0.36Al0.64As, and indium phosphide layers serving as waveguide cladding layers. An X-ray diffraction analysis demonstrated the high uniformity of the composition and thickness of layers in cascades of the heterostructure over the substrate area. Lasers with four cleaved facets show lasing at room temperature at a wavelength close to 4.6 mu m with a comparatively low threshold current density of 1.1 kA/cm(2).
引用
收藏
页码：442 / 445
页数：4
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