In a part extending along a line to cut in an object to be processed, laser light is oscillated in {TAIL ~ a pulsing fashion} in an intermediate portion including an effective part, and is continuously oscillated in {HEAD ~ one end portion} and the other end portion on both sides of the intermediate portion 
In a part extending along a line to cut in an object to be processed , laser light is oscillated in { TAIL ~ a pulsing fashion } in an intermediate portion including an effective part , and is continuously oscillated in { HEAD ~ one end portion } and the other end portion on both sides of the intermediate portion
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH