We report the design, growth, and characterization of an AlGaInP-based VECSEL, designed to be optically-pumped with an inexpensive high power blue InGaN diode laser, for emission around 689 nm. Up to 140 mW output power is achieved in a circularly-symmetric single transverse (TEM00) and single longitudinal mode, tunable from 683 to 693 nm. With intensity stabilization of the pump diode and frequency-stabilization of the VECSEL resonator to a reference cavity via the Pound-Drever-Hall technique, we measure the power spectral density of the VECSEL frequency noise, reporting sub-kHz linewidth at 689 nm. The VECSEL relative intensity noise (RIN) is <-130 dBc/Hz for all frequencies above 100 kHz. This compact laser system is suitable for use in quantum technologies, particularly those based on laser-cooled and trapped strontium atoms.
Publication forum classification
- Publication forum level 1
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
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Moriya, P. (Creator), Casula, R. (Creator), Chappell, G. (Creator), Parrotta, D. C. (Creator), Ranta, S. (Creator), Kahle, H. (Creator), Guina, M. (Creator) & Hastie, J. (Creator), University of Strathclyde, 5 Jan 2021