High-brightness tapered quantum cascade lasers

被引：24

作者：

Goekden, Burc ^{[1
]}

Mansuripur, Tobias S. ^{[2
]}

Blanchard, Romain ^{[1
]}

Wang, Christine ^{[3
]}

Goyal, Anish ^{[3
]}

Sanchez-Rubio, Antonio ^{[3
]}

Turner, George ^{[3
]}

Capasso, Federico ^{[1
]}

机构：

[1] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA

[2] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA

[3] MIT Lincoln Lab, Lexington, MA 02420 USA

来源：

APPLIED PHYSICS LETTERS | 2013年 / 102卷 / 05期

关键词：

BEAM QUALITY; AMPLIFIER; EMISSION; POWER; DEPENDENCE;

D O I：

10.1063/1.4791557

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

An index-guided tapered quantum cascade laser emitting near 9.5 mu m with sloped sidewalls and no anti-reflection coating is presented, and the performance for devices with taper half-angles of 1 degrees and 2 degrees is investigated. The 1 degrees device delivers up to 2.5 W of peak optical power at room temperature with beam quality-factor M-2 = 2.08, while the two-degree device outputs 3.8 W with M-2 = 2.25 for a maximum brightness of 1.87 MW cm(-2) sr(-1). (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4791557]

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页数：4

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