公开(公告)号：JP2001203422A

公开(公告)日：2001-07-27

申请号：JP2001004591

申请日：2001-01-12

Applicant: XEROX CORP

Inventor： DANIEL HOFUSHUTETTAA ,  PAOLI THOMAS L ,  ROMANO LINDA T ,  SUN DECAI ,  DAVID P BARR ,  MICHAEL A KNEISEL ,  CHRIS G VAN DE WOORE ,  NOBLE M JOHNSON

IPC: H01S5/02 ,  H01S5/12 ,  H01S5/20 ,  H01S5/323 ,  H01S5/343

Abstract: PROBLEM TO BE SOLVED: To provide a gain combination type DFB GaN laser. SOLUTION: The distributed feedback laser 100 has a substrate 102, an active layer 110, comprising at least one from among aluminum, gallium, indium and nitrogen, a lower side clad layer 106 which has alloy comprising at least one from among aluminum, gallium, indium and nitrogen and is in the lower side of the active layer 110 and the upper side clad layer 123 which comprises at least one of the aluminum, gallium, indium and nitrogen and is in the upper side of the active layer 110, and periodical variations in at least either of the lower side and upper side clad layers 106, 123 provides distributed optical feedback.