| タイトル | Low Power Consumption Laser for Next Generation Miniature Optical Spectrometers for Trace Gas Analysis |
| 著者（英） | Chen, J.; Frez, C.; Ksendzov, A.; Kipshidze, G.; Forouhar, S.; Belenky, G.; Hosoda, T.; Franz, K. J.; Soibel, K. A.; Shterengas, L.; Qiu, Y. |
| 著者所属（英） | Jet Propulsion Lab., California Inst. of Tech. |
| 発行日 | 2011-01-23 |
| 言語 | eng |
| 内容記述 | The air quality of any manned spacecraft needs to be continuously monitored in order to safeguard the health of the crew. Air quality monitoring grows in importance as mission duration increases. Due to the small size, low power draw, and performance reliability, semiconductor laser-based instruments are viable candidates for this purpose. Achieving a minimum instrument size requires lasers with emission wavelength coinciding with the absorption of the fundamental absorption lines of the target gases, which are mostly in the 3.0-5.0 mu m wavelength range. In this paper we report on our progress developing high wall plug efficiency type-I quantum-well GaSb-based diode lasers operating at room temperatures in the spectral region near 3.0-3.5 mu m and quantum cascade (QC) lasers in the 4.0-5.0 mu m range. These lasers will enable the development of miniature, low-power laser spectrometers for environmental monitoring of the spacecraft |
| NASA分類 | Spacecraft Design, Testing and Performance |
| 権利 | Copyright |
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