Skin care device using multiple composite laser pulses and method thereof

A skin care device using a multiple composite laser pulse, comprising:

• a laser generating unit including an energy portion configured to supply energy, a light emitting portion configured to generate light by absorbing the energy supplied from the energy portion, a first mirror and a second mirror configured to form a resonance path in which the light generated from the light emitting portion is amplified, a polarizing portion disposed on an optical resonant path between the first mirror and the second mirror and configured to polarize the light, and a first switch and a second switch configured to convert a polarization component of an incident polarized light;
• and
• a control unit configured to control the energy portion, the first switch, and the second switch to output drive signals that are independently set for each of the first switch and the second switch such that the laser generating unit operates in a single laser pulse mode or a multiple laser pulse mode to output a composite multiple laser pulse,
• wherein the second switch operates to generate a laser pulse having a time width of several microseconds (μs) to several hundreds of microseconds (μs), and the first switch operates one or more times during a period in which the second switch is operating to generate one or more laser pulses having a time width of several nanoseconds (ns) to several tens of nanoseconds (ns).