We have applied the frequency-modulation (FM) technique in the 1.5 ?m wavelength region to observe saturated absorption in ammonia in hollow-core photonic bandgap fibers (HC-PBFs). Previously blended lines have been resolved.
© 2008 Optical Society of America
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(300.0300) Spectroscopy : Spectroscopy
(300.6460) Spectroscopy : Spectroscopy, saturation
(060.5295) Fiber optics and optical communications : Photonic crystal fibers
A. M. Cubillas, J. Hald, and J. C. Petersen, "Optical Heterodyne Saturation Spectroscopy in Ammonia Filled Hollow-Core Photonic Bandgap Fibers," 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 JFA2.
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