Title :
Electro-optic modulator for remote sensing in mid-infrared ozone detection
Author :
Shahnazi, K. ; Lynds, L. ; Cheo, P.K.
Author_Institution :
Dept. of Electr. Eng., Connecticut Univ., Storrs, CT, USA
Abstract :
Under the program sponsored by NSF- Atmospheric Science division, a heterodyne spectrometer for remote sensing of vertical stratospheric ozone is being developed. In the 10 /spl mu/m region, a microwave-sideband CO/sub 2/ laser spectrometer has been used to find absorption spectra of NH/sub 3/, a resolution of .0002 cm/sup -1/ has been successfully demonstrated on selected transitions. In addition, tunability and performance of the modulator has been reported. The modulator can be tuned from 8-18 GHz with minimum input power of 18 watts.
Keywords :
atmospheric composition; atmospheric techniques; electro-optical modulation; ozone; remote sensing by laser beam; spectrochemical analysis; stratosphere; 10 micron; 18 W; 8 to 18 GHz; CO/sub 2/; NH/sub 3/; O/sub 3/; ammonia absorption spectra; electro-optic modulator; heterodyne spectrometer; microwave-sideband CO/sub 2/ laser; mid-infrared ozone detection; remote sensing; stratosphere; tunability; Electromagnetic wave absorption; Laser theory; Laser transitions; Laser tuning; Masers; Microstrip; Optical waveguides; Remote sensing; Spectroscopy; Waveguide lasers;
Conference_Titel :
Lasers and Electro-Optics Society Annual Meeting, 1996. LEOS 96., IEEE
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-3160-5
DOI :
10.1109/LEOS.1996.565123
