Invention Grant
US08340148B2 Surface-emission laser devices, surface-emission laser array having the same, electrophotographic system and optical communication system
有权
表面发射激光器件,具有相同的表面发射激光器阵列,电子照相系统和光通信系统
- Patent Title: Surface-emission laser devices, surface-emission laser array having the same, electrophotographic system and optical communication system
- Patent Title (中): 表面发射激光器件,具有相同的表面发射激光器阵列,电子照相系统和光通信系统
-
Application No.: US12717713Application Date: 2010-03-04
-
Publication No.: US08340148B2Publication Date: 2012-12-25
- Inventor: Naoto Jikutani , Shunichi Sato
- Applicant: Naoto Jikutani , Shunichi Sato
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2005-346055 20051130; JP2006-126072 20060428; JP2006-299074 20061102
- Main IPC: H01S5/00
- IPC: H01S5/00

Abstract:
A surface-emission laser device comprises an active layer, cavity spacer layers provided at both sides of the active layer, reflection layers provided at respective sides of the cavity spacer layers, the reflection layers reflecting an oscillation light oscillated in the active layer and a selective oxidation layer. The selective oxidation layer is provided between a location in the reflection layer corresponding to a fourth period node of the standing wave distribution of the electric field of the oscillating light and a location in the reflection layer adjacent to the foregoing fourth period node in the direction away from the active layer and corresponding to an anti-node of the standing wave distribution of the electric field of the oscillation light.
Public/Granted literature
Information query