作者
Manijeh Razeghi, Neelanjan Bandyopadhyay, Yanbo Bai, Quanyong Lu, Steven Slivken
发表日期
2013/11/1
来源
Optical Materials Express
卷号
3
期号
11
页码范围
1872-1884
出版商
Optica Publishing Group
简介
Quantum cascade laser (QCL) is an important source of electromagnetic radiation in mid infrared region. Recent research in mid-IR QCLs has resulted in record high wallplug efficiency (WPE), high continuous wave (CW) output power, single mode operation and wide tunability. CW output power of 5.1 W with 21% WPE has been achieved at room temperature (RT). A record high WPE of 53% at 40K has been demonstrated. Operation wavelength of QCL in CW at RT has been extended to as short as 3µm. Very high peak power of 190 W has been obtained from a broad area QCL of ridge width 400µm. 2.4W RT, CW power output has been achieved from a distributed feedback (DFB) QCL. Wide tuning based on dual section sample grating DFB QCLs has resulted in individual tuning of 50cm^−1 and 24 dB side mode suppression ratio with continuous wave power greater than 100mW.
引用总数
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学术搜索中的文章
M Razeghi, N Bandyopadhyay, Y Bai, Q Lu, S Slivken - Optical Materials Express, 2013