Local spatial separation of laser eigenstates is shown to provide a convenient and reliable means for tuning several parameters of a two-frequency laser independently of one another, while the eigenbeams are kept degenerate on the resonator ends. The flexibility gained is illustrated by easy measurements of saturated dispersion in an intracavity absorber.
© 1993 Optical Society of America
Original Manuscript: July 6, 1993
Published: December 1, 1993
Nam Huu Tran, Thierry Foucher, Patrice Lagoutte, Christophe Migault, Fabien Bretenaker, and Albert Le Floch, "Heterodyne spectroscopy with spatially resolved laser eigenstates," Opt. Lett. 18, 2056-2058 (1993)