Laser device and extreme ultraviolet light generation device

A laser device, comprising:

• a plurality of optical shutters disposed in series with each other on an optical path of a laser beam and configured to open and close in response to application of high voltage;
• a power source device configured to generate the high voltage to be applied to the optical shutters;
• a high-voltage side wire connecting the power source device and each optical shutter;
• a ground-side wire grounding each optical shutter;
• and
• a high-voltage side shared wire and a ground-side shared wire electrically connecting the optical shutters in parallel with each other,
• one of the high-voltage side wire and the ground-side wire being connected with an optical shutter disposed on a most upstream side in a traveling direction of the laser beam among the optical shutters, and
• another of the high-voltage side wire and the ground-side wire being connected with an optical shutter disposed on a most downstream side in the traveling direction of the laser beam among the optical shutters.