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1. 发明授权

US06205273B1 Waveguide grating router having a predetermined composite amplitude spectrum 有权
标题翻译：具有预定复合幅度谱的波导光栅路由器
公开(公告)号：US06205273B1
公开(公告)日：2001-03-20
申请号：US09260635
申请日：1999-03-02
申请人： Jerry Chia-yung Chen
发明人： Jerry Chia-yung Chen
IPC分类号： G02B634
CPC分类号： G02B6/12016 , G02B6/12019 , G02B6/12033
摘要： In a waveguide grating router, a predetermined composite transmission spectrum output is achieved by eliminating loss imbalances through the use of variable loss elements. The variable loss elements are introduced to the waveguide grating router's waveguide ports, such that the loss of a transmitted signal is independent of wavelength. The waveguide grating router includes at least one input waveguide and a plurality of output waveguides. The variable loss element is introduced to a predetermined group of output waveguides to produce a predetermined composite amplitude spectrum of the output signals. To provide a predetermined composite amplitude output spectrum, the variable loss elements may be implemented in a variety of ways, including a method of varying the cross-sectional areas of the router's waveguide ports to introduce more loss.
摘要翻译：在波导光栅路由器中，通过使用可变损耗元件消除损耗不平衡来实现预定的复合透射光谱输出。可变损耗元件被引入波导光栅路由器的波导端口，使得发射信号的损耗与波长无关。波导光栅路由器包括至少一个输入波导和多个输出波导。可变损耗元件被引入预定的一组输出波导以产生输出信号的预定复合振幅谱。为了提供预定的复合幅度输出频谱，可以以各种方式实现可变损耗元件，包括改变路由器的波导端口的横截面积以引入更多损耗的方法。

2. 发明授权

US06118909A Athermal optical devices 失效
标题翻译：光热器件
公开(公告)号：US06118909A
公开(公告)日：2000-09-12
申请号：US22338
申请日：1998-02-11
申请人： Jerry Chia-yung Chen , Corrado Dragone , Yuan P. Li
发明人： Jerry Chia-yung Chen , Corrado Dragone , Yuan P. Li
IPC分类号： G02B6/13 , G02B6/10 , G02B6/12 , G02B6/34 , G02B6/26
CPC分类号： G02B6/12011 , G02B6/10 , G02B6/12028
摘要： Optical devices, such as wavelength routers, having a plurality of waveguides of differing lengths, with improved independence to temperature fluctuations. Improved temperature independence is achieved by varying the cross-section of the device waveguides. Cross-section variation can be implemented in one or more of the following ways: selectively applying a temperature-compensating material (e.g., a polymer) over portions of the waveguides, and/or varying the dimensions and/or compositions of the materials used in the waveguides, either along each waveguide or between waveguides or both. By carefully designing the devices, the temperature effects resulting from the different lengths of the different waveguides can be compensated to produce a relatively temperature-independent device. The index of refraction of the temperature-compensating material changes with temperature in the same direction as the indices of refraction of the rest of the waveguide materials, and the effective length of the portion of a waveguide covered by the temperature-compensating material is inversely proportional to the effective length of the waveguide.
摘要翻译：具有多个不同长度的波导的诸如波长路由器的光学装置具有改进的对温度波动的独立性。通过改变器件波导的横截面来实现改善的温度独立性。横截面变化可以以以下一种或多种方式实现：在波导的部分上选择性地施加温度补偿材料（例如，聚合物），和/或改变所使用的材料的尺寸和/或组成波导，沿着每个波导，或在波导之间或两者。通过仔细设计这些器件，可以补偿由不同波长的不同长度产生的温度效应以产生相对温度无关的器件。温度补偿材料的折射率随着温度与其余波导材料的折射率相同的方向变化，并且由温度补偿材料覆盖的波导部分的有效长度成反比到波导的有效长度。

3. 发明授权

US6108469A Wavelength selective resonant gratings 有权
标题翻译：波长选择谐振光栅
公开(公告)号：US6108469A
公开(公告)日：2000-08-22
申请号：US201174
申请日：1998-11-30
申请人： Jerry Chia-yung Chen
发明人： Jerry Chia-yung Chen
IPC分类号： G02B6/00 , G02B6/12 , G02B6/293 , G02F1/01 , G02F1/21 , G02F1/313 , G02B6/28
CPC分类号： G02F1/21 , G02B6/12007 , G02B2006/12107 , G02B2006/12159 , G02B2006/12164 , G02F2201/307 , G02F2203/055
摘要： A wavelength selective resonant grating exhibits transmission resonances when a single gap between two sections of a split gratings is used to provide a phase shift which is not a quarter wavelength in length or .pi./2 in phase. When the phase is changed to non - .pi./2 values (or the gap differs from a quarter wave), the transmission resonance moves from the center of the stop band. Appropriate adjustments of the phase over a .pi. interval allow tuning of the resonance across the entire stop band. The resonant optical wavelength grating can, illustratively, be used as wavelength filter, wavelength monitor, or as part of an Add/Drop arrangement.
摘要翻译：当使用分裂光栅的两个部分之间的单个间隙来提供相位不是长度上的四分之一波长或π/ 2相位的相移时，波长选择性谐振光栅显示出传输谐振。当相位改变为非pi / 2值（或间隙与四分之一波）不同时，传输谐振从阻带的中心移动。在π间隔上适当地调整相位允许调谐整个阻带的谐振。示例性地，谐振光波长光栅可以用作波长滤波器，波长监视器或者作为加/减布置的一部分。

4. 发明授权

US5926587A Optical passband filters 失效
标题翻译：光通滤波器
公开(公告)号：US5926587A
公开(公告)日：1999-07-20
申请号：US925515
申请日：1997-09-08
申请人： Jerry Chia-yung Chen , Corrado Dragone
发明人： Jerry Chia-yung Chen , Corrado Dragone
IPC分类号： G02B6/12 , G02B6/293 , G02B6/34 , H04J14/00 , H04J14/02
CPC分类号： G02B6/12021
摘要： Two or more wavelength routers are cascaded together to form a passband filter with low levels of crosstalk between different channels of a wavelength division multiplexing (WDM) stream. Cascading wavelength routers is a technique that can be used to efficiently realize wide and flat passbands, but high levels of cross-talk may result from multi-path interference caused by grating lobes, which produce unwanted transmission paths between the two routers. Spatial filtering can be applied to inhibit the propagation of light-energy along the unwanted paths, and it can be implemented using any suitable techniques including pinholes, reflectors, waveguides, and multi-mode interferometers (MMIs). The resulting passband filter can be designed to generate levels of crosstalk similar to those of conventional passband filters that rely on a single waveguide router.
摘要翻译：两个或多个波长路由器级联在一起以形成波分复用（WDM）流的不同信道之间具有低水平串扰的通带滤波器。级联波长路由器是一种可用于有效实现宽而平坦的通带的技术，但高级别的串扰可能是由于两个路由器之间产生不必要的传输路径的光栅引起的多径干扰。可以应用空间滤波来抑制沿着不需要的路径的光能的传播，并且可以使用包括针孔，反射器，波导和多模干涉仪（MMI）的任何合适的技术来实现空间滤波。所得到的通带滤波器可被设计成产生与依赖于单个波导路由器的传统通带滤波器类似的串扰水平。

5. 发明授权

US5889906A Signal router with coupling of multiple waveguide modes for provicing a shaped multi-channel radiation pattern 失效
标题翻译：具有多个波导模式耦合的信号路由器，用于提供成形的多通道辐射图案
公开(公告)号：US5889906A
公开(公告)日：1999-03-30
申请号：US864053
申请日：1997-05-28
申请人： Jerry Chia-yung Chen
发明人： Jerry Chia-yung Chen
IPC分类号： G02B6/28 , G02B6/34 , G02B6/26 , H04J14/00
CPC分类号： G02B6/12011 , G02B6/12016 , G02B6/2813
摘要： A signal router includes a free space region with input and output sides. A number of input and output waveguide arms extend from the respective input and output sides of the free space region. At least a subset of the input or output waveguide arms are configured such that a signal applied to one of the waveguide arms excites multiple modes of that waveguide arm. Coupling between the multiple modes of the various waveguide arms is used to shape a multi-channel output radiation pattern of the router. The excitation of multiple modes may be provided by configuring a given waveguide arm to include a first portion and a second portion, with the second portion arranged between the first portion and a side of the free space region and having a width which is greater than a width of the first portion. Alternatively, the excitation of multiple modes may be provided by including one or more auxiliary waveguide arms between a given pair of main input or output waveguide arms. In either case, a desired multi-channel radiation pattern for a given router may be provided by altering characteristics of the waveguide arms.
摘要翻译：信号路由器包括具有输入和输出侧的自由空间区域。多个输入和输出波导臂从自由空间区域的相应输入和输出侧延伸。输入或输出波导臂的至少一个子集被配置为使得施加到一个波导臂的信号激发该波导臂的多个模式。使用各种波导臂的多种模式之间的耦合来形成路由器的多通道输出辐射图案。可以通过将给定的波导臂配置为包括第一部分和第二部分来提供多种模式的激励，其中第二部分布置在自由空间区域的第一部分和侧面之间，并且具有大于第一部分的宽度。或者，可以通过在给定的一对主输入或输出波导臂之间包括一个或多个辅助波导臂来提供多个模式的激励。在任一情况下，可以通过改变波导臂的特性来提供用于给定路由器的期望的多通道辐射图。

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