Channeled spectrum of a fiber laser

Autor: Guy Stephan, Thierry Chartier, Patrice Le Boudec, Pierre-Luc François, Roland Leners, E. Delevaque, François Sanchez
Rok vydání: 1993
Předmět:
Zdroj: Optics Letters. 18:355
ISSN: 1539-4794
0146-9592
DOI: 10.1364/ol.18.000355
Popis: We describe the polarization properties of a long Nd(3+)-doped optical fiber laser. An intracavity prism acts as a dichroic element and fixes the polarization of the laser beam essentially in its plane of incidence. The slight birefringence of the fiber makes a wavelength-dependent phase plate that modifies the state of the polarization. In the laser output spectrum, the azimuth for the elliptically polarized field can thus rotate by several times pi/2 if the fiber is long enough. This gives a channeled spectrum when observed through a polarizer.
Databáze: OpenAIRE