Title :
Dual tunable wavelength Er,Yb:glass laser for terahertz beat frequency generation
Author :
Alouini, Mehdi ; Brunel, Marc ; Bretenaker, Fabien ; Vallet, Marc ; Le Floch, Albert
Author_Institution :
Lab. d´´Electron. Quantique-Phys. des Lasers, Rennes I Univ., France
Abstract :
Dual tunable wavelength operation of Er,Yb:phosphate glass laser is reported. The spatial separation of the laser eigenstates and the use of two properly designed intracavity etalons permit one to tune the two wavelengths independently from 1540.5 to 1562.7 nm. The generated beat note, monitored using a Michelson interferometer, is experimentally shown to be adjustable from dc to 2.7 THz. The linewidth of this beat note is found to be less than 10 kHz. Several applications are discussed.
Keywords :
Michelson interferometers; eigenvalues and eigenfunctions; erbium; laser transitions; laser tuning; microwave generation; optical communication equipment; solid lasers; submillimetre wave devices; ytterbium; 1540.5 to 1562.7 nm; Er,Yb:phosphate glass laser; Michelson interferometer; beat note; dual tunable wavelength Er,Yb:glass laser; dual tunable wavelength operation; generated beat note; intracavity etalons; laser eigenstates; laser tuning; sub mm wave generation; terahertz beat frequency generation; Erbium; Frequency; Glass; Laser excitation; Laser radar; Laser tuning; Mirrors; Optical interferometry; Solid lasers; Tunable circuits and devices;
Journal_Title :
Photonics Technology Letters, IEEE
