Laser apparatus and output control method of laser apparatus

A method of controlling an output of a laser apparatus in which a laser light flux outputted by a laser light source enters into an output member and a laser light flux outputted from the output member is emitted to an outside of the laser apparatus, the method comprising:

• detecting an intensity of the laser light flux outputted from the output member;
• changing relative positions of the output member and a laser light flux entering into the output member;
• changing a power of the laser light flux emitted by the laser light source by changing an input signal to the laser light source;
• and
• selecting one of
• the step of changing the relative positions of the output member and the laser light flux entering into the output member and
• the step of changing the power of the laser light flux emitted by the laser light source,
• based on the intensity of the laser light flux outputted from the output member.

A laser apparatus comprising:

• a laser light source for generating a laser light flux with a different intensity corresponding to an input signal;
• an output member for receiving and transmitting the laser light flux generated by the laser light source, and outputting a laser light flux;
• an optical aligning member for positioning the laser light flux generated by the laser light source to the output member;
• a drive for driving the optical aligning member;
• an output detector for outputting a detected output representing an intensity of a laser light flux outputted from the output member;
• and
• a controller for switching a drive control of the drive for driving the optical aligning member and an output control of the laser light source for changing the power of the laser light flux emitted from the laser light source, based on a signal from the output detector.