公开(公告)号：EP1509977A4

公开(公告)日：2005-08-17

申请号：EP03728529

申请日：2003-04-24

申请人： FINISAR CORP

发明人： HSIEH JOHN

IPC分类号： H01S5/042 ,  H01S5/062 ,  H01S5/068

CPC分类号： H01S5/06209 ,  H01S5/042 ,  H01S5/06812

摘要： A method of biasing a laser (108) that includes determining a threshold current (Ith) of a laser (108) and setting a bias current for the laser (108) as a factor of the threshold current (Ith).

公开(公告)号：EP1485736A4

公开(公告)日：2006-01-11

申请号：EP03710985

申请日：2003-02-11

申请人： FINISAR CORP

发明人： CHIENG YEW-TAI ,  HSIEH JOHN ,  LIGHT GRETA L

IPC分类号： H01S5/06 ,  H01S5/062 ,  H01S5/068 ,  H01S5/40 ,  G02B6/12 ,  H04B10/00 ,  H04B10/04 ,  H04B10/155

CPC分类号： H01S5/06804 ,  H01S5/0617 ,  H01S5/06213 ,  H01S5/40

摘要： A method of maintaining desirable optical performance of an optoelectronic apparatus at extreme temperatures is disclosed. At a first temperature, a first bias current at which the laser generates optical signals at a first level is determined. At a second temperature outside of a predefined range of the first temperature, a second bias current at which the laser generates optical signals at a second level is determined. If the second temperature is greater than the higher end-point temperature of the predefined range, the second predefined level is defined to be less than the first predefined level. If the second temperature is less than the lower end-point temperature of the predefined range, the second predefined range is defined to be greater than the first predefined level.