Room temperature continuous wave operation of quantum cascade laser atλ~ 9.4μm
| Autor: | Lijun Wang, Shenqiang Zhai, Fengqi Liu, Chuncai Hou, Zhanguo Wang, Jinchuan Zhang, Ning Zhuo, Yue Zhao, Junqi Liu, Shu-Man Liu |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
business.industry Heterojunction 02 engineering and technology Atmospheric temperature range 021001 nanoscience & nanotechnology Condensed Matter Physics Laser 01 natural sciences Electronic Optical and Magnetic Materials law.invention 010309 optics Wavelength law Cascade 0103 physical sciences Materials Chemistry Optoelectronics Continuous wave Wafer Electrical and Electronic Engineering 0210 nano-technology business Quantum cascade laser |
| Zdroj: | Journal of Semiconductors. 39:034001 |
| ISSN: | 1674-4926 |
| DOI: | 10.1088/1674-4926/39/3/034001 |
| Popis: | Continuous wave (CW) operation of long wave infrared (LWIR) quantum cascade lasers (QCLs) is achieved up to a temperature of 303 K. For room temperature CW operation, the wafer with 35 stages was processed into buried heterostructure lasers. For a 2-mm-long and 10-μm-wide laser with high-reflectivity (HR) coating on the rear facet, CW output power of 45 mW at 283 K and 9 mW at 303 K is obtained. The lasing wavelength is around 9.4 μm locating in the LWIR spectrum range. |
| Databáze: | OpenAIRE |
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