公开(公告)号：EP1163542A1

公开(公告)日：2001-12-19

申请号：EP00907786.8

申请日：2000-03-03

申请人： Mears, Robert, Joseph

发明人： Mears, Robert Joseph ,  Parker, Michael Charles

IPC分类号： G02B5/18 ,  G02B6/16 ,  G02B27/44 ,  G02F1/35 ,  G02F1/377 ,  G02F1/383

CPC分类号： G02B6/02085 ,  G02B5/18 ,  G02B6/02057 ,  G02B6/122 ,  G02B2006/12107 ,  G02F1/225 ,  G02F1/2252 ,  G02F1/3136 ,  G02F1/3517 ,  G02F1/3521 ,  G02F1/3558 ,  G02F2001/212 ,  G02F2201/30 ,  G02F2201/307 ,  H01S5/1206 ,  H01S5/125 ,  H01S5/18361

摘要： The invention relates to the field of grating structures. The invention provides a longitudinal grating having an aperiodic structure, wherein the grating has a selected response characteristic and any repeated unit cell in the structure is significantly longer than a characteristic length associated with the selected response characteristic.