High power, continuous wave, quantum cascade ring laser

被引：53
|
作者：
Bai, Y. [1 ]
Tsao, S. [1 ]
Bandyopadhyay, N. [1 ]
Slivken, S. [1 ]
Lu, Q. Y. [1 ]
Caffey, D. [2 ]
Pushkarsky, M. [2 ]
Day, T. [2 ]
Razeghi, M. [1 ]
机构：
[1] Northwestern Univ, Dept Elect Engn & Comp Sci, Ctr Quantum Devices, Evanston, IL 60208 USA
[2] Daylight Solut Inc, San Diego, CA 92128 USA
来源：
APPLIED PHYSICS LETTERS | 2011年 / 99卷 / 26期
关键词：
SEMICONDUCTOR-LASERS; PERFORMANCE;
D O I：
10.1063/1.3672049
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We demonstrate a quantum cascade ring laser with high power room temperature continuous wave operation. A second order distributed feedback grating buried inside the waveguide provides both in-plane feedback and vertical power outcoupling. Total output power reaches 0.51 W at an emission wavelength around 4.85 mu m. Single mode operation persists up to 0.4 W. The far field analysis indicates that the device operates in a high order mode. The magnetic and electric components of the ring-shaped lasing beam are in radial and azimuthal directions, respectively. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3672049]
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页数：3
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