公开(公告)号：WO1996024180A1

公开(公告)日：1996-08-08

申请号：PCT/US1996001018

申请日：1996-01-23

Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN ,  SQUIER, Jeffrey, A. ,  KANE, Steven, J.

Inventor： THE REGENTS OF THE UNIVERSITY OF MICHIGAN

IPC: H01S03/00

CPC classification number: H01S3/0057 ,  H01S3/0812 ,  H01S3/1106

Abstract: The invention provides a method an apparatus for imparting phase shift in one or more pulses. The apparatus comprises at least one optical diffraction grating element; where each one of the grating elements comprises a grating having a constant line spacing (d) and a dielectric body in light coupling arrangement with the grating. The dielectric body has a side through which the pulse traverses. The side is at an angle alpha (alpha) with respect to the grating. Alpha alpha defines a path of the pulse in the dielectric body corresponding to an incident angle THETA i (theta incident) between the path and a plane normal to the grating. The incident angle theta i and grating line spacing (d) cooperate to provide negative second-order dispersion (SOD) and negative third-order dispersion (TOD) so as to compensate for any positive SOD and any positive TOD initially present in the pulse.

Abstract translation: 本发明提供一种用于在一个或多个脉冲中施加相移的装置的方法。 该装置包括至少一个光学衍射光栅元件; 其中每个光栅元件包括具有恒定线间距（d）的光栅和与光栅的光耦合布置的电介质体。 介电体具有脉冲穿过的一侧。 侧面相对于光栅为α（α）角。 Alpha alpha定义介质体中的脉冲的路径，其对应于路径和垂直于光栅的平面之间的入射角度THETA i（θ入射）。 入射角θi和光栅线间距（d）协同提供负二阶色散（SOD）和负三阶色散（TOD），以补偿脉冲中最初存在的任何正SOD和任何正TOD。

公开(公告)号：WO0101189A9

公开(公告)日：2002-07-11

申请号：PCT/US0016976

申请日：2000-06-16

Applicant: REVEO INC ,  FARIS SADEG M ,  MA KELVIN ,  LU D T GEORGE ,  TRIPATHI SANJAY ,  KANE STEVEN J

Inventor： FARIS SADEG M ,  MA KELVIN ,  LU D T GEORGE ,  TRIPATHI SANJAY ,  KANE STEVEN J

IPC: G02F1/315 ,  H04Q11/00 ,  G02F1/01 ,  G02B6/00 ,  G02B6/26 ,  G02F1/035 ,  G02F1/295 ,  G02F1/335

CPC classification number: G02F1/315 ,  G02F2203/07 ,  G02F2203/50 ,  H04Q11/0005 ,  H04Q2011/0035 ,  H04Q2011/005 ,  H04Q2011/0073 ,  H04Q2011/0081

Abstract: The present invention includes a switch element (100) which utilizes a single polarizer (110) to couple two discreet inputs to any combination of two discreet outputs (1, 2, 3, 4) along non-blocking optical paths. This switch element (100) may be conveniently networked to additional switch elements (100) for scaling to switches having larger numbers (N) of inputs and outputs such as shown as switches (150) and (150'). The present invention is relatively robust and insensitive to environmental disturbances and has a reconfiguration time which is an order of magnitude faster than conventional optomechanical switches which generally require tens of milliseconds before reconfiguration. It further provides for convenient scaling to a non-blocking NxN configuration using N (log2 N-1) 2x2 switches rather than conventional approaches which require N (log2 N) switches, for a simple and compact configuration.

Abstract translation: 本发明包括开关元件（100），该开关元件（100）利用单个偏振器（110）将两个离散输入耦合到沿着非阻塞光学路径的两个离散输出（1,2,3,4）的任何组合。 该开关元件（100）可以方便地与额外的开关元件（100）联网，以便缩放到具有诸如开关（150）和（150'）所示的具有较大数量（N）个输入和输出的开关。 本发明是相对鲁棒的并且对环境干扰不敏感，并且具有重新配置时间，其比在重新配置之前通常需要几十毫秒的常规光机械开关快一个数量级。 它还提供了使用N *（log2 N-1）2x2开关的方便的非阻塞NxN配置的扩展，而不是需要N（log2 N）个开关的常规方法，用于简单紧凑的配置。