title: Acetylene frequency references in gas-filled hollow optical fiber and photonic microcells.
abstract: Gas-filled hollow optical fiber references based on the P(13) transition of the ν1+ν3 band of 12C2H2 promise portability with moderate accuracy and stability. Previous realizations are corrected (<1σ) by using proper modeling of a shift due to line-shape. To improve portability, a sealed photonic microcell is characterized on the 12C2H2 ν1+ν3 P(23) transition with somewhat reduced accuracy and stability. Effects of the photonic crystal fiber, including surface modes, are explored. Both polarization-maintaining (PM) and non-PM 7-cell photonic bandgap fiber are shown to be unsuitable for kilohertz-level frequency references.
authors.affiliation: Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA.
authors.forename: Chenchen
authors.initials: C
authors.lastname: Wang
authors.forename: Natalie V
authors.initials: NV
authors.lastname: Wheeler
authors.forename: Coralie
authors.initials: C
authors.lastname: Fourcade-Dutin
authors.forename: Michael
authors.initials: M
authors.lastname: Grogan
authors.forename: Thomas D
authors.initials: TD
authors.lastname: Bradley
authors.forename: Brian R
authors.initials: BR
authors.lastname: Washburn
authors.forename: Fetah
authors.initials: F
authors.lastname: Benabid
authors.forename: Kristan L
authors.initials: KL
authors.lastname: Corwin