title: Hermetic optical-fiber iodine frequency standard.
abstract: We have built an optical-frequency standard based on interrogating iodine vapor that has been trapped within the hollow core of a hermetically sealed kagome-lattice photonic crystal fiber. A frequency-doubled Nd:YAG laser locked to a hyperfine component of the P(142)37-0 I2127 transition using modulation transfer spectroscopy shows a frequency stability of 3×10(-11) at 100 s. We discuss the impediments in integrating this all-fiber standard into a fully optical-fiber-based system, and suggest approaches that could improve performance of the frequency standard substantially.
authors.forename: Philip S
authors.initials: PS
authors.lastname: Light
authors.forename: James D
authors.initials: JD
authors.lastname: Anstie
authors.forename: Fetah
authors.initials: F
authors.lastname: Benabid
authors.forename: Andre N
authors.initials: AN
authors.lastname: Luiten