发明名称 SURFACE EMITTING LASER ELEMENT, SURFACE EMITTING LASER ARRAY, OPTICAL SCANNER, AND IMAGE FORMATION APPARATUS
摘要 PROBLEM TO BE SOLVED: To provide a surface emitting laser element capable of improving a manufacturing yield. SOLUTION: A resonator structure including a buffer layer 102, a lower semiconductor DBR 103 and an active layer 105, an upper semiconductor DBR 107, and a contact layer 109 are laminated on a substrate 101. On an injection surface where a laser beam is ejected, a p-side electrode 113 is provided by surrounding an injection area. In the injection area, a dielectric film is provided whose reflectivity of periphery is made to be lower than that of the center. Vicinity of the end of the dielectric film is tilted against the injection surface. COPYRIGHT: (C)2011,JPO&INPIT
申请公布号 JP2011135031(A) 申请公布日期 2011.07.07
申请号 JP20100156453 申请日期 2010.07.09
申请人 RICOH CO LTD 发明人 HANAOKA KATSUNARI
分类号 H01S5/183 主分类号 H01S5/183
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