8E-17 fractional laser frequency instability with a long room-temperature cavity

Abstract

We present a laser system based on a 48 cm long optical glass resonator. The large size requires a sophisticated thermal control and optimized mounting design. A self balancing mounting was essential to reliably reach sensitivities to acceleration of below $\Delta \nu /\nu$ < 2E-10 /g in all directions. Furthermore, fiber noise cancellations from a common reference point near the laser diode to the cavity mirror and to additional user points (Sr clock and frequency comb) are implemented. Through comparison to other cavity-stabilized lasers and to a strontium lattice clock an instability of below 1E-16 at averaging times from 1 s to 1000 s is revealed.

References in corpus (4)

• Interference-filter-stabilized external-cavity diode lasers
• Tuning the Thermal Expansion Properties of Optical Reference Cavities with Fused Silica Mirrors
• Ultra-stable laser with average fractional frequency drift rate below $5\times 10^{-19}/\mathrm{s}$
• Narrow bandwidth interference filter-stabilized diode laser systems for the manipulation of neutral atoms

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