Saturable absorber based polarization-maintaining pulse laser

摘要

The polarization maintaining saturable absorber based pulse laser according to an embodiment of the present invention includes a polarization maintaining saturable absorber forming a section of a laser resonator provided as a closed loop optical waveguide and provided as an asymmetric optical waveguide; And a wavelength division multiplexed optical coupler for supplying light generated from the pump light source into the laser resonator. According to the embodiment of the present invention, the polarization maintaining saturable absorber has a structure in which the asymmetric optical waveguide is coated with the saturated specific absorption material, so that the polarization maintaining property can be provided due to the high birefringence, So that the laser output can be stabilized.