A single-mode external cavity diode laser using an intra-cavity atomic Faraday filter with short-term linewidth $<400$ kHz and long-term stability of $<1$ MHz

Abstract

We report on the development of a diode laser system - the `Faraday laser' - using an atomic Faraday filter as the frequency-selective element. In contrast to typical external-cavity diode laser systems which offer tunable output frequency but require additional control systems in order to achieve a stable output frequency, our system only lases at a single frequency, set by the peak transmission frequency of the internal atomic Farady filter. Our system has both short-term and long-term stability of less than 1~MHz, which is less than the natural linewidth of alkali-atomic D-lines, making similar systems suitable for use as a `turn-key' solution for laser cooling experiments.

References in corpus (7)

• The cooperative Lamb shift in an atomic nanolayer
• Absolute absorption on the rubidium D lines: comparison between theory and experiment
• Modulation transfer spectroscopy in atomic rubidium
• ElecSus: A program to calculate the electric susceptibility of an atomic ensemble
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• Absolute absorption on rubidium D1 line: including resonant dipole-dipole interactions
• Effect of line broadening on the performance of Faraday filters

Cited by in corpus (9)

• ElecSus: Extension to arbitrary geometry magneto-optics
• Nano-structured alkali-metal vapor cells
• Four-wave mixing in a non-degenerate four-level diamond configuration in the hyperfine Paschen-Back regime
• Optimized ultra-narrow atomic bandpass filters via magneto-optic rotation in an unconstrained geometry
• Absorption spectroscopy and Stokes polarimetry in a ${}^{87}$Rb vapour in the Voigt geometry with a 1.5 T external magnetic field
• Quantitative optical spectroscopy of ${}^{87}$Rb vapour in the Voigt geometry in DC magnetic fields up to 0.4T
• Simultaneous two-photon resonant optical laser locking (STROLLing) in the hyperfine Paschen--Back regime
• Atomic line versus lens cavity filters: A comparison of their merits
• Voigt transmission windows in optically thick atomic vapours: a method to create single-peaked line centre filters