Title :
Rapidly tuneable external cavity diode laser
Author_Institution :
Dept. of Phys., Lund Inst. of Technol., Sweden
Abstract :
External cavity diode lasers are often tuned by letting a piezoelectric actuator move the grating, thereby changing the length of the cavity. In order to reach higher repeatability and tuning speeds one can incorporate an electro-optical crystal (EOC) into the cavity. The index of refraction of the EOC can be changed by applying an electric field across it, thereby accurately changing the effective optical length of the cavity. We have designed and built a laser using the ideas above for use in coherent transient spectroscopy on thulium doped inorganic crystals at 793 nm.
Keywords :
diffraction gratings; electro-optical devices; laser cavity resonators; laser tuning; optical materials; piezoelectric actuators; refractive index; semiconductor lasers; spectroscopy; thulium; 793 nm; coherent transient spectroscopy; effective optical length; electric field; electro-optical crystal; external cavity diode laser; grating; optical length; piezoelectric actuator; refractive index; thulium doped inorganic crystal; tuning speed; Diode lasers; Gratings; Laser tuning; Lasers and electrooptics; Optical design; Optical refraction; Optical tuning; Piezoelectric actuators; Spectroscopy; Tunable circuits and devices;
Conference_Titel :
Lasers and Electro-Optics Europe, 2003. CLEO/Europe. 2003 Conference on
Print_ISBN :
0-7803-7734-6
DOI :
10.1109/CLEOE.2003.1312255
