Cavity waveguide-output laser

We propose for the first time a laser configuration which couples the cavity standing wave field directly with an optical fibre or optical fibre taper using its polished face as an output coupling mirror. A method for direct, active and paraxial launching of laser emission into an optical fibre, adaptable for various laser active media, has been achieved on this basis. Some of the important parameters of this laser are expressed in analytical form. Experimental verification of the proposed idea has been conducted on the basis of a dye laser. Excellent intensity distribution has been obtained beyond the optical fibre output. Launching efficiency exceeding 80% has been predicted and measured experimentally.