Title :
Methane detection in ambient air by difference frequency generation using a direct-bonded periodically poled LiNbO3 ridge waveguide
Author :
Yanagawa, Tsutomu ; Tadanaga, Osamu ; Nishida, Yoshiki ; Miyazawa, Hiroshi ; Magari, Katsuaki ; Asobe, Masaki ; Suzuki, Hiroyuki
Author_Institution :
NTT Photonics Labs., Atsugi
Keywords :
Bragg gratings; chemical variables measurement; gas sensors; infrared spectroscopy; laser cavity resonators; laser stability; lithium compounds; measurement by laser beam; optical waveguides; ridge waveguides; semiconductor lasers; spectrochemical analysis; DFG mid-IR output; Hanst configuration; LiNbO3; NIR external cavity laser diode; difference frequency generation; direct-bonded periodically poled LiNbO3 ridge waveguide; fiber Bragg gratings; laser diode oscillation mode stabilization; methane gas detection; spectroscopic resolution; trace gas concentration; Absorption; Bragg gratings; Erbium-doped fiber amplifier; Fiber gratings; Frequency; Optical filters; Optical noise; Optical pumping; Phase noise; Spectroscopy;
Conference_Titel :
Lasers and Electro-Optics Society, 2006. LEOS 2006. 19th Annual Meeting of the IEEE
Conference_Location :
Montreal, QC, Canada
Print_ISBN :
0-7803-9555-7
Electronic_ISBN :
0-7803-9555-7
DOI :
10.1109/LEOS.2006.278989