Frequency locking of tunable diode lasers to a stabilized ring-cavity resonator

Abstract

We demonstrate a technique for locking the frequency of a tunable diode laser to a ring-cavity resonator. The resonator is stabilized to a diode laser which is in turn locked to an atomic transition, thus giving it absolute frequency calibration. The ring-cavity design has the principal advantage that there is no feedback destabilization of the laser. The cavity has a free-spectral range of 1.3 GHz and $Q$ of about 35, which gives robust locking of the laser. The locked laser is able to track large scans of the cavity.

6 pages, 3 figures

References in corpus (2)

• High-accuracy wavemeter based on a stabilized diode laser
• Precise frequency measurements of atomic transitions using a Rb-stabilized resonator

Cited by in corpus (3)

• Absolute frequency measurements of the $D_2$ line and fine-structure interval in ${}^{39}$K
• Probing the dynamics of an optically trapped particle by phase sensitive back focal plane interferometry
• Two-beam nonlinear Kerr effect to stabilize laser frequency with sub-Doppler resolution