公开(公告)号：US20070092194A1

公开(公告)日：2007-04-26

申请号：US10595991

申请日：2004-11-16

申请人： Peter Smith ,  Corin Gawith ,  Lu Ming

发明人： Peter Smith ,  Corin Gawith ,  Lu Ming

IPC分类号： G02B6/10

CPC分类号： G02F1/3558 ,  G02B2006/121 ,  G02B2006/12107

摘要： A method of fabricating an optical waveguide (18) comprises providing a sample of lithium niobate (10) that has one or more periodically poled gratings made by electric field poling, applying a patterned surface layer of metallic zinc (16) to a z-face of the sample so that the layer (16) has a pattern corresponding to an intended pattern of waveguides (18) to be written into the lithium niobate, and heating the sample to diffuse the metallic zinc (16) into the lithium niobate so as to form an optical waveguiding structure (18) within the sample.

摘要翻译： 一种制造光波导（18）的方法包括提供具有由电场极化制成的一个或多个周期性极化光栅的铌酸锂（10）样品，将金属锌（16）的图案化表面层施加到z面 使得层（16）具有对应于要写入铌酸锂的波导（18）的期望图案的图案，并且加热样品以将金属锌（16）扩散到铌酸锂中，从而 形成样品内的光波导结构（18）。

公开(公告)号：US20060127024A1

公开(公告)日：2006-06-15

申请号：US10535010

申请日：2003-05-19

申请人： Peter Smith ,  Richard Williams ,  Vassilios Albanis ,  Corin Gawith ,  Samuel Watts ,  Gregory Emmerson

发明人： Peter Smith ,  Richard Williams ,  Vassilios Albanis ,  Corin Gawith ,  Samuel Watts ,  Gregory Emmerson

IPC分类号： G02B6/34

CPC分类号： G02B6/13 ,  G02B6/02152 ,  G02B6/12007 ,  G02B6/124

摘要： A method of simultaneously defining a waveguide and grating in a sample of photosensitive material comprises providing a sample of material (24) having a region which is photosensitive to light of a specific wavelength, generating a spot of light (22) at the specific wavelength, the spot having a periodic intensity pattern of high and low intensity fringes, and a width which is related to the width of the channel, positioning the spot within the photosensitive region and causing relative movement between the sample and the light spot along the desired path of the waveguide/grating define a channel of altered refractive index by exposing parts of the photosensitive region to the light spot. Modulation of the light spot to produce multiple exposures produces a grating, while continuous exposure results in a uniform waveguide. These structures can be written in straight lines or around curves, and can be accurately overwritten, so that complex optical devices can be produced in a single fabrication step.

摘要翻译： 在感光材料的样本中同时限定波导和光栅的方法包括提供具有对特定波长的光敏感的区域的材料样品（24），产生特定波长的光点（22） 具有高强度条纹和低强度条纹的周期性强度图案的斑点以及与通道宽度相关的宽度，将斑点定位在感光区域内，并引起样品和光点之间沿着期望路径的相对移动 波导/光栅通过将光敏区域的一部分暴露于光点来限定改变的折射率的通道。 调制光斑以产生多次曝光产生光栅，而连续曝光导致均匀的波导。 这些结构可以以直线或曲线周围的方式写入，并且可以被精确地覆盖，使得可以在单个制造步骤中生成复杂的光学器件。