Optical transfer cavity stabilization using current-modulated injection-locked diode lasers

Abstract

It is demonstrated that RF current modulation of a frequency stabilized injection-locked diode laser allows the stabilization of an optical cavity to adjustable lengths, by variation of the RF frequency. This transfer cavity may be used to stabilize another laser at an arbitrary wavelength, in the absence of atomic or molecular transitions suitable for stabilization. Implementation involves equipment and techniques commonly used in laser cooling and trapping laboratories, and does not require electro- or acousto-optic modulators. With this technique we stabilize a transfer cavity using a RF current-modulated diode laser which is injection locked to a 780 nm reference diode laser. The reference laser is stabilized using polarization spectroscopy in a Rb cell. A Ti:sapphire ring laser at 960 nm is locked to this transfer cavity and may be precisely scanned by varying the RF modulation frequency. We demonstrate the suitability of this system for the excitation of laser cooled Rb atoms to Rydberg states.

References in corpus (3)

• Spectroscopic observation of resonant electric dipole-dipole interactions between cold Rydberg atoms
• Autler-Townes spectroscopy of the $5S_{1/2}-5P_{3/2}-44D$ cascade of cold ${}^{85}$Rb atoms
• Resonant electric dipole-dipole interactions between cold Rydberg atoms in a magnetic field

Cited by in corpus (4)

• Laser frequency stabilization to highly excited state transitions using electromagnetically induced transparency in a cascade system
• Determination of the Rb ng-series quantum defect by electric-field-induced resonant energy transfer between cold Rydberg atoms
• ac electric-field-induced resonant energy transfer between cold Rydberg atoms
• Single barium ion spectroscopy: light shifts, hyperfine structure, and progress on an optical frequency standard and atomic parity violation