公开(公告)号：US09625628B2

公开(公告)日：2017-04-18

申请号：US14608356

申请日：2015-01-29

Applicant: JDS Uniphase Corporation

Inventor： Curtis R. Hruska ,  Benjamin F. Catching ,  Paula Smith

IPC: G01J3/28 ,  G02B5/28 ,  G01J3/26 ,  G01J3/02 ,  G01J3/12

CPC classification number: G01J3/0229 ,  G01J3/0208 ,  G01J3/0259 ,  G01J3/0262 ,  G01J3/12 ,  G01J3/26 ,  G01J3/2803 ,  G01J2003/1213 ,  G01J2003/1221 ,  G01J2003/1234 ,  G01J2003/2813 ,  G02B5/285

Abstract: An optical filter is disclosed including two laterally variable bandpass filters stacked at a fixed distance from each other, so that the upstream filter functions as a spatial filter for the downstream filter. This happens because an oblique beam transmitted by the upstream filter is displaced laterally when impinging on the downstream filter. The lateral displacement causes a suppression of the oblique beam when transmission passbands at impinging locations of the oblique beam onto the upstream and downstream filters do not overlap.

公开(公告)号：US20150219494A1

公开(公告)日：2015-08-06

申请号：US14608356

申请日：2015-01-29

Applicant: JDS Uniphase Corporation

Inventor： Curtis R. HRUSKA ,  Benjamin F. Catching ,  Paula Smith

IPC: G01J3/12 ,  G01J3/02 ,  G02B5/28 ,  G01J3/28

CPC classification number: G01J3/0229 ,  G01J3/0208 ,  G01J3/0259 ,  G01J3/0262 ,  G01J3/12 ,  G01J3/26 ,  G01J3/2803 ,  G01J2003/1213 ,  G01J2003/1221 ,  G01J2003/1234 ,  G01J2003/2813 ,  G02B5/285

Abstract: An optical filter is disclosed including two laterally variable bandpass filters stacked at a fixed distance from each other, so that the upstream filter functions as a spatial filter for the downstream filter. This happens because an oblique beam transmitted by the upstream filter is displaced laterally when impinging on the downstream filter. The lateral displacement causes a suppression of the oblique beam when transmission passbands at impinging locations of the oblique beam onto the upstream and downstream filters do not overlap.

Abstract translation: 公开了一种滤光器，其包括彼此以固定距离堆叠的两个横向可变带通滤光器，使得上游滤光器用作下游滤光器的空间滤光器。 这是因为当上游滤波器发射的倾斜波束在撞击下游滤波器时横向偏移。 当倾斜光束的入射位置在上游和下游滤波器上的传输通带不重叠时，横向位移导致倾斜光束的抑制。