457-nm radiation source based on a diode laser for precision spectroscopy of magnesium atoms. (March 2020)

• Record Type: Journal Article
• Authors: Goncharov, A.N.; Baraulya, V.I.; Bonert, A.E.; Tropnikov, M.A.
• Is Part Of: Quantum electronics. Volume 50:Number 3(2020)
• Page Start: 272
• Page End: 276
• Publication Date: 2020-03
• Subjects: frequency standards -- magnesium -- diode laser -- tapered amplifier -- magneto-optical trap -- precision spectroscopy; Quantum electronics -- Periodicals; 537.5
• DOI: 10.1070/QEL17215
• Languages: English
• ISSNs: 1063-7818

Abstract

Abstract: We report on the development of a highly stable source of 457-nm radiation based on a diode laser and a tapered amplifier operating in a double-pass scheme. The diode laser frequency was stabilised by a high- Q reference Fabry – Perot interferometer and doubled in a PPSLT nonlinear crystal placed in an enhancement cavity. At a maximum output power of 200 mW at a wavelength of 457 nm, the laser linewidth was less than 5 kHz. The radiation source operation was demonstrated in experiments on precision spectroscopy of cold magnesium atoms in a magneto-optical trap.