公开(公告)号：WO2008153626A8

公开(公告)日：2009-06-11

申请号：PCT/US2008005279

申请日：2008-04-24

Applicant: KOTURA INC ,  FENG DAZENG ,  ASGHARI MEHDI ,  LUFF BRADLEY JONATHAN

Inventor： FENG DAZENG ,  ASGHARI MEHDI ,  LUFF BRADLEY JONATHAN

IPC: G02B6/34

CPC classification number: G02B6/12007 ,  G02B6/29308 ,  G02B6/2931 ,  G02B6/2938

Abstract: An optical device includes an echelle grating and input waveguide arranged such that the echelle grating receives an input signal that exits from a port of the input waveguide. The echelle grating is configured to reflect the input signal such that when the input signal has a plurality of channels, the input signal separates into output signals that each includes a different one of the channels. The device also includes a plurality of output waveguides that each includes a port positioned to receive one of the output signals. The output waveguides include central waveguides. The central waveguides are the three centermost output waveguides when the total number of output waveguides is odd and the two centermost output waveguides when the total number of output waveguides is even. The central waveguides are positioned such that the grating axis passes through the port associated with one of the central waveguides or passes between the ports associated with the central waveguides.

Abstract translation: 光学装置包括梯形光栅和输入波导，其布置成使得电梯格栅接收从输入波导的端口离开的输入信号。 层叠光栅被配置为反映输入信号，使得当输入信号具有多个通道时，输入信号被分离成每个包括不同通道的输出信号。 该装置还包括多个输出波导，每个输出波导包括定位成接收输出信号之一的端口。 输出波导包括中心波导。 当输出波导的总数为奇数时，中心波导是三个最中心的输出波导，当输出波导的总数为偶数时，中心波导是两个最中心的输出波导。 中心波导被定位成使得光栅轴线穿过与一个中心波导相关联的端口或者在与中心波导相关联的端口之间通过。