Patent ID: 8110422

Claim:
A method of manufacturing a semiconductor laser element having a stripe structure, the method comprising the steps of: forming in an object to be processed having a plurality of two-dimensionally arranged semiconductor laser parts configured to become semiconductor laser elements a first starting point region for cutting along at least a part of a first cutting line extending orthogonal to a stripe direction between the semiconductor laser parts and irradiating the object with laser light while locating a converging point within the object, so as to form a second starting point region for cutting having a modified region along the stripe direction between the semiconductor laser parts; cutting the object along the first cutting line from the first starting point region with the first starting point region acting as a start point, so as to yield a plurality of bars that are arranged one-dimensionally from a plurality of semiconductor laser parts, by cutting the object along the first cutting line at the first starting point region, after forming the first starting point region and the second starting point region; and cutting the bars along the second cutting line from the second starting point region with the second starting point region acting as a start point, so as to yield a plurality of semiconductor laser parts by cutting the bars along the second cutting line starting at the second starting point region, after yielding the plurality of bars.