Saturation spectroscopy of iodine in hollow-core optical fiber.
We present high-resolution spectroscopy of I(2) vapor that is loaded and trapped within the core of a hollow-core photonic crystal fiber (HC-PCF). We compare the observed spectroscopic features to those observed in a conventional iodine cell and show that the saturation characteristics differ significantly. Despite the confined geometry it was still possible to obtain sub-Doppler features with a spectral width of ~6 MHz with very high contrast. We provide a simple theory which closely reproduces all the key observations of the experiment.
School of Physics, The University of Western Australia, Crawley, Western Australia 6009, Australia.
Anna
A
Lurie
Philip S
PS
Light
James
J
Anstie
Thomas M
TM
Stace
Paul C
PC
Abbott
Fetah
F
Benabid
Andre N
AN
Luiten
D004867:Equipment Design; D019544:Equipment Failure Analysis; D007455:Iodine / Q000032:analysis*; D055100:Optical Fibers; D013057:Spectrum Analysis / Q000379:methods*
D007455:Iodine