We report on a method for characterizing the tuning capabilities of small-bandwidth external-cavity diode lasers. The step response of a piezo-driven Littman-Metcalf external-cavity diode laser and the compensation of its optoelectromechanical frequency response is investigated. When an approximately 50-V compensated Gaussian pulse is applied to the piezo element, a detuning of 13.6 GHz is observed. This modification of the laser is useful for several spectroscopical applications and as a tunable seed laser for lidar applications.
© 2002 Optical Society of America
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(140.3600) Lasers and laser optics : Lasers, tunable
(300.6260) Spectroscopy : Spectroscopy, diode lasers
Peter Mahnke, Hans H. Klingenberg, and Werner Zirnig, "Fast Tuning of External-Cavity Diode Lasers," Appl. Opt. 41, 6380-6384 (2002)