The output of a grating-stabilized external-cavity diode laser was injected into a semiconductor tapered amplifier in a master-oscillator power amplifier configuration, producing as much as 500 mW of power with narrow linewidth. The additional linewidth that is due to the tapered amplifier is much smaller than the typical linewidth of grating-stabilized laser diodes. To demonstrate the usefulness of the narrow linewidth and high output power, we used the system to perform Doppler-free two-photon spectroscopy with rubidium.
© 1998 Optical Society of America
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3280) Lasers and laser optics : Laser amplifiers
(140.3600) Lasers and laser optics : Lasers, tunable
(140.4480) Lasers and laser optics : Optical amplifiers
(140.5960) Lasers and laser optics : Semiconductor lasers
Andrew C. Wilson, Johnathan C. Sharpe, Callum R. McKenzie, Peter J. Manson, and Donald M. Warrington, "Narrow-Linewidth Master-Oscillator Power Amplifier Based on a Semiconductor Tapered Amplifier," Appl. Opt. 37, 4871-4875 (1998)