A fiber coupled high-finesse external cavity diode laser for cavity ringdown spectroscopy was successfully demonstrated. The sensitivity of 1x 10<sup>-7</sup>cm<sup>-1</sup>was achieved in a 1 cm<sup>3</sup>remotely located ringdown cavity as a sensor head.
© 2008 Optical Society of America
J. Sato, K. Nemoto, S. Yamaguchi, M. Endo, K. Nanri, and T. Fujioka, "Compact Diode Laser Trace Gas System with an Optical Fiber Coupled High-Finesse External Cavity Based on Cavity Ringdown Spectroscopy," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, OSA Technical Digest (CD) (Optical Society of America, 2008), paper JTuA98.
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