| タイトル | Single Frequency, Pulsed Laser Diode Transmitter for Dial Water Vapor Measurements at 935nm |
| 著者（英） | Cornwell, Donald M., Jr.; Krainak, Michael A.; Rall, Johnathan A. R.; Abshire, James B.; Switzer, Gregg W. |
| 著者所属（英） | NASA Langley Research Center |
| 発行日 | 1998-07-01 |
| 言語 | eng |
| 内容記述 | We report a tunable, single frequency, narrow linewidth, pulsed laser diode transmitter at 935.68nm for remote sensing of atmospheric water vapor. The transmitter consists of a CW, tunable, external cavity diode laser whose output is amplified 2OdB using a tapered diode amplifier. The output is pulsed for range resolved DIAL lidar by pulsing the drive current to the diode amplifier at 4kHz with a .5% duty cycle. The output from the transmitter is 36OnJ/pulse and is single spatial mode. It maintains a linewidth of less than 25MHz as its wavelength is tuned across the water vapor absorption line at 935.68nm. The transmitter design and its use in a water vapor measurement will be discussed. |
| NASA分類 | Lasers and Masers |
| 権利 | No Copyright |
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