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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