Temperature-independent optical cavities for laser frequency stabilization

Abstract

We propose a method for thermal expansion compensation of reference monolithic optical cavities for laser frequency stabilization. Two schemes of optical cavities are considered: a Fabry-Perot interferometer with a crimp ring and a whispering-gallery-mode cavity with a clamp. In each scheme, thermal expansion compensation is achieved due to the strained connection of the cavity with an element made of a material with a high coefficient of thermal expansion. The temperature region of the cavities' optical length stabilization is estimated.

arXiv comment10 pages, 6 figures

References in corpus (6)

• 1.5 $\mu$m lasers with sub 10 mHz linewidth
• Sub-Hz line width diode lasers by stabilization to vibrationally and thermally compensated ULE Fabry-Perot cavities
• 8E-17 fractional laser frequency instability with a long room-temperature cavity
• Chasing the thermodynamical noise limit in whispering-gallery-mode resonators for ultrastable laser frequency stabilization
• Tuning the Thermal Expansion Properties of Optical Reference Cavities with Fused Silica Mirrors
• Long 48-cm ULE cavities in vertical and horizontal orientations for Sr optical clock