Ultra-compact reference ULE cavity

Abstract

We present a first experimental characterization of our ultra-compact, ultra-stable laser. The heart of the apparatus is an original Fabry-Perot cavity with a 25 mm length and a pyramidal geometry, equipped with highly-reflective crystalline coatings. The cavity, along with its vacuum chamber and optical setup, fits inside a 30 L volume. We have measured the cavity thermal and vibration sensitivities, and present a first estimation of the cavity fractional frequency instability at ${\sigma }_y(1\mathrm{s})=7.5\times 10^{-15}$.

4 pages, 5 figures

References in corpus (8)

• Generation of Ultrastable Microwaves via Optical Frequency Division
• A sub-40 mHz linewidth laser based on a silicon single-crystal optical cavity
• Photonic microwave signals with zeptosecond level absolute timing noise
• 8E-17 fractional laser frequency instability with a long room-temperature cavity
• Tuning the Thermal Expansion Properties of Optical Reference Cavities with Fused Silica Mirrors
• A compact, robust, and transportable ultra-stable laser with a fractional frequency instability of $1\times 10^{-15}$
• A compact, thermal noise limited reference cavity for ultra-low noise microwave generation
• Ultra-low phase noise all-optical microwave generation setup based on commercial devices

Cited by in corpus (3)

• A transportable interrogation laser system with an instability of $\mathrm{mod}{\sigma }_{\mathrm{y}}=3\times 10^{-16}$
• Bow-Tie Cavity for Terahertz Radiation
• Digital Doppler-cancellation servo for ultra-stable optical frequency dissemination over fiber