We propose a new astro-comb mode-filtering scheme composed of two Fabry–Perot cavities (coined “conjugate Fabry–Perot cavity pair”). Simulations indicate that this new filtering scheme makes the accuracy of astro-comb spectral lines more robust against systematic errors induced by nonlinear processes associated with power-amplifying and spectral-broadening optical fibers.
© 2012 Optical Society of America
Instrumentation, Measurement, and Metrology
Original Manuscript: May 10, 2012
Revised Manuscript: June 15, 2012
Manuscript Accepted: June 16, 2012
Published: July 19, 2012
Chih-Hao Li, Guoqing Chang, Alexander G. Glenday, Nicholas Langellier, Alexander Zibrov, David F. Phillips, Franz X. Kärtner, Andrew Szentgyorgyi, and Ronald L. Walsworth, "Conjugate Fabry–Perot cavity pair for improved astro-comb accuracy," Opt. Lett. 37, 3090-3092 (2012)