公开(公告)号：EP1602963A4

公开(公告)日：2007-11-07

申请号：EP04719592

申请日：2004-03-11

申请人： NIPPON TELEGRAPH & TELEPHONE

发明人： TSUZUKI KEN ,  ITO TSUYOSHI ,  IGA RYUZO

IPC分类号： G02F1/017 ,  G02F1/025 ,  G02F1/225

CPC分类号： G02F1/01708 ,  B82Y20/00 ,  G02F1/2257

摘要： A semiconductor optical converter for use principally in an optical communication system or an optical information processing system. The semiconductor optical converter comprises an n-InP clad layer (12), an optical waveguide layer (13), an SI-InP clad layer (14), and an n-InP clad layer (15) formed sequentially on an SI-InP substrate (11), characterized in that a voltage is applied from an electrode (16) connected with the n-InP clad layer (15) and a ground electrode (17) connected with the n-InP clad layer (12). The semiconductor optical converter is especially applicable as a semiconductor phase modulator or a semiconductor Mach-Zehnder phase modulator operating at low voltages and having a low waveguide loss.

公开(公告)号：EP1750336A4

公开(公告)日：2010-08-11

申请号：EP05743820

申请日：2005-05-26

申请人： NIPPON TELEGRAPH & TELEPHONE

发明人： IGA RYUZO ,  KONDO YASUHIRO

IPC分类号： H01S5/227 ,  H01S5/026 ,  H01S5/12 ,  H01S5/22 ,  H01S5/30 ,  H01S5/343

CPC分类号： B82Y20/00 ,  H01S5/0265 ,  H01S5/12 ,  H01S5/2224 ,  H01S5/2226 ,  H01S5/227 ,  H01S5/2275 ,  H01S5/305 ,  H01S5/3072 ,  H01S5/3434