Abstract
Abstract We show that the light of a commercially available Er : Yb :Cr :phosphate glass microchip laser end-pumped at 977 nm by an InGaAs laser diode can be switched between two linear polarization eigenstates when it is submitted to a polarized optical feedback. The flip occurs when the feedback phase is scanned by the external cavity length. In our experiments the laser diode light is confined to a fiber which is single-mode at pumping wavelength and the microchip laser operates in a single- longitudinal-and transverse mode. The microchip laser exhibits a self-pulsing behavior. Key words : Solid state laser, Optical switching, Optical polariza- tion, Microstructure, Glass, Phosphate, Feedback, Optical pumping, Experimental study. pompe et le microlaser est dgalement monomode trans- verse et longitudinal. On observe un comportement auto- impulsionnel du laser. Mots el~s : Laser solide, Commutation optique, Polarisation opti- que, Microstructure, Verre, Phosphate, R6troaction, Pompage optique, Etude exp6rimentale. Contents
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