公开(公告)号：US06345135B1

公开(公告)日：2002-02-05

申请号：US09306449

申请日：1999-05-06

申请人： Douglas Charles John Reid ,  David James Robbins ,  Gert Jaak Anna Sarlet

发明人： Douglas Charles John Reid ,  David James Robbins ,  Gert Jaak Anna Sarlet

IPC分类号： G02B634

CPC分类号： G02B6/122 ,  G02B6/02085 ,  G02B2006/12104 ,  G02B2006/12107 ,  H01S5/12 ,  H01S5/1209 ,  H01S5/1246

摘要： A multi-wavelength optical reflector comprises a diffraction grating structure (18) which comprises a plurality of repeat grating units (20) in which each grating unit (20) comprises a series of adjacent diffraction gratings (22, 24, 26) having the same pitch. The grating units (20) and adjacent gratings within a grating unit are separated by a phase change (28) of substantially pi (&pgr; radians). The lengths of the gratings (22, 24, 26), which are different for each grating within a grating unit, are selected so as to provide a predetermined comb reflection spectrum which comprises a plurality of reflection maxima of substantially equal reflectivity.

摘要翻译： 多波长光学反射器包括衍射光栅结构（18），其包括多个重复光栅单元（20），其中每个光栅单元（20）包括一系列具有相同光栅单元的相邻衍射光栅（22,24,26） 沥青。 光栅单元（20）和光栅单元内的相邻光栅被基本上为pi（pi弧度）的相变（28）分开。 选择光栅单元内的每个光栅不同的光栅（22,24,26）的长度，以便提供预定的梳状反射光谱，其包括基本相等的反射率的多个反射最大值。