PLANAR WAVEGUIDE LASER AMPLIFIER

摘要

The invention concerns a power optical amplifier with planar waveguide optically pumped and a power laser using said amplifier. The amplifier planar waveguide comprises layers (14, 16, 18) forming a multimode guide with large numerical aperture for the pump light (4) and a monomode guide (16) for the light to be amplified (2). The latter is amplified in said guide by the optical pumping.