Bruno Chanteau, Olivier Lopez, Wei Zhang, Daniele Nicolodi, Bérengère Argence, Frédéric Auguste, Michel Abgrall, Christian Chardonnet, Giorgio Santarelli, Benoît Darquié, Yann Le Coq, Anne Amy-Klein
We present a new method for accurate mid-infrared frequency measurements and stabilization to a near-infrared ultra-stable frequency reference, transmitted with a long-distance fibre link and continuously monitored against state-of-the-art atomic fountain clocks. As a first application, we measure the frequency of an OsO4 rovibrational molecular line around 10 $\mu$m with a state-of-the-art uncertainty of 8x10-13. We also demonstrate the frequency stabilization of a mid-infrared laser with fractional stability better than 4x10-14 at 1 s averaging time and a line-width below 17 Hz. This new stabilization scheme gives us the ability to transfer frequency stability in the range of 10-15 or even better, currently accessible in the near-infrared or in the visible, to mid-infrared lasers in a wide frequency range.
View original:
http://arxiv.org/abs/1304.7568
No comments:
Post a Comment