The absolute frequency of an acetylene-stabilized laser at 1542 nm is measured at its second harmonic (771 nm) by use of a femtosecond optical comb based on a mode-locked Ti:sapphire laser. Frequency stability and reproducibility of the acetylene-stabilized laser are evaluated by the femtosecond comb with a H maser as a frequency reference. The absolute frequency of a laser diode stabilized on the P(16) transition of <sup>13</sup>C<sub>2</sub>H<sub>2</sub> is determined to be 194 369 569 383.6(1.3) kHz. The acetylene-stabilized laser serves as an important optical frequency standard for telecommunication applications.
© 2003 Optical Society of America
(120.3930) Instrumentation, measurement, and metrology : Metrological instrumentation
(120.3940) Instrumentation, measurement, and metrology : Metrology
(300.6360) Spectroscopy : Spectroscopy, laser
(320.7110) Ultrafast optics : Ultrafast nonlinear optics
Feng-Lei Hong, Atsushi Onae, Jie Jiang, Ruixiang Guo, Hajime Inaba, Kaoru Minoshima, Thomas R. Schibli, Hirokazu Matsumoto, and Ken’ichi Nakagawa, "Absolute frequency measurement of an acetylene-stabilized laser at 1542 nm," Opt. Lett. 28, 2324-2326 (2003)