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Compact, Ti:sapphire-based, methane-stabilized optical molecular frequency comb and clock

By Dmitry Tyurikov, Ruth Shewmon, Andrew J. Benedick, Franz X. Kaertner, Mikhail Gubin and Isaac L. Chuang


A compact optical clock and frequency comb system is presented, based on a 1 GHz octave spanning Ti:sapphire laser referenced to the F2[superscript(2)](P(7),v[subscript 3]) optical transition in methane at 3.39 μm. The reference methane transition is accessed by a stabilized HeNe laser in a compact transportable format. The output from the octave spanning Ti:sapphire laser is used to generate a mid-IR comb at the reference wavelength 3.39 μm. Direct comparison of the stabilized optical frequency comb with a ULE cavity stabilized diode laser at 674 nm shows an Allan Deviation of the frequency comb of 3x10[superscript -14] in 20 s

Publisher: 'The Optical Society'
Year: 2009
DOI identifier: 10.1364/OL.34.002168
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Provided by: DSpace@MIT
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