| タイトル | All-Solid-State UV Transmitter Development for Ozone Sensing Applications |
| 本文（外部サイト） | http://hdl.handle.net/2060/20090025866 |
| 著者（英） | Armstrong, Darrell Jr.; Prasad, Narasimha S.; Singh, Upendra N. |
| 著者所属（英） | NASA Langley Research Center |
| 発行日 | 2009-06-22 |
| 言語 | eng |
| 内容記述 | In this paper, recent progress made in the development of an all-solid-state UV transmitter suitable for ozone sensing applications from space based platforms is discussed. A nonlinear optics based UV setup based on Rotated Image Singly Resonant Twisted Rectangle (RISTRA) optical parametric oscillator (OPO) module was effectively coupled to a diode pumped, single longitudinal mode, conductively cooled, short-pulsed, high-energy Nd:YAG laser operating at 1064 nm with 50 Hz PRF. An estimated 10 mJ/pulse with ~10% conversion efficiency at 320 nm has been demonstrated limited only by the pump pulse spatial profile. The current arrangement has the potential for obtaining greater than 200 mJ/pulse. Previously, using a flash-lamp pumped Nd:YAG laser with round, top-hat profile, up to 24% IR-UV conversion efficiency was achieved with the same UV module. Efforts are underway to increase the IR-UV conversion efficiency of the all solid-state setup by modifying the pump laser spatial profile along with incorporating improved OPO crystals. |
| NASA分類 | Communications and Radar |
| レポートNO | LF99-8751 |
| 権利 | No Copyright |
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