Abstract
A synchronously dual self-mode-locked (SML) operation at 946 and 1064nm is experimentally accomplished by using a compact coupling scheme to obtain the optical beating frequency up to 35.2THz. The SML emissions at 946 and 1064nm are established by a monolithic Nd:YAG cavity and a Nd:YVO<sub>4</sub> crystal in a flat-flat cavity, respectively. Two gain media are butt adjoined to be longitudinally pumped by a single laser diode. The monolithic Nd:YAG crystal is used not only as the 946nm laser cavity, but also as the output coupler of the Nd:YVO<sub>4</sub> 1064nm laser. More importantly, the output surface of the monolithic Nd:YAG laser is coated to generate the optical feedback for the synchronization of the dual SML operation. At a pump power of 10.7W, the output powers at 1064 and 946nm can simultaneously reach 1.5W by controlling the focal position of the pump waist.
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