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1. 发明申请

US20050135728A1 Planar lightwave circuit variable optical attenuator 有权
标题翻译：平面光波电路可变光衰减器
公开(公告)号：US20050135728A1
公开(公告)日：2005-06-23
申请号：US11015223
申请日：2004-12-17
申请人： Anca Sala , Duncan Harwood , Barthelemy Fondeur , Anantharaman Vaidyanathan , Robert Brainard , Sanjay Thekdi , Thomas Nguyen , Ian Hutagalung
发明人： Anca Sala , Duncan Harwood , Barthelemy Fondeur , Anantharaman Vaidyanathan , Robert Brainard , Sanjay Thekdi , Thomas Nguyen , Ian Hutagalung
IPC分类号： G02B6/12 , G02B6/26 , G02F1/01 , G02F1/21
CPC分类号： G02F1/0147 , G02B6/12007 , G02B6/266 , G02F1/21 , G02F2001/0113 , G02F2001/212 , G02F2203/06
摘要： The invention relates to a variable optical attenuator constructed as a Mach Zehnder planar lightwave circuit, particularly including a channel waveguide support structure for heat isolation and stress relief to reduce polarization dependent loss (PDL) and power consumption in the device. Power reduction trenches comprise longitudinal segments having small stress relief pillars of cladding material left in between them in the etching process. The waveguides of the MZI are supported by a main pillar structure and integral stress relief pillars which remain after removal of the trenches. The waveguide is surrounded by air on three sides for improved heat isolation. The performance of the present invention shows substantial improvement in PDL and extinction ratio over the prior art continuous trench design, and also, to a smaller degree, over the case where power reduction trenches are not used at all. Segmented trenches appear to allow for the lowest stress on the two waveguide arms of all the cases including no trench and trenched devices.
摘要翻译：本发明涉及一种构成马赫曾德平面光波回路的可变光衰减器，特别是包括用于隔热和应力释放的通道波导支撑结构，以减少器件中的偏振相关损耗（PDL）和功耗。功率减小沟槽包括在蚀刻工艺中在它们之间具有小的应力消除柱的包层材料的纵向段。 MZI的波导由主柱结构和消除沟槽后保留的积分应力消除柱支撑。波导三面被空气包围，以改善热隔离。与现有技术的连续沟槽设计相比，本发明的性能显示出PDL和消光比的显着改善，并且在更少的程度上，在完全不使用功率降低沟槽的情况下。分段沟槽似乎允许在所有情况下的两个波导臂上的最小应力，包括没有沟槽和沟槽的器件。

2. 发明申请

US20050031968A1 Planar circuit optimization 有权
标题翻译：平面电路优化
公开(公告)号：US20050031968A1
公开(公告)日：2005-02-10
申请号：US10736295
申请日：2003-12-15
申请人： Barthelemy Fondeur , Anca Sala , Robert Brainard , David Nakamoto , Tom Truong , Sanjay Thekdi , Anantharaman Vaidyanathan
发明人： Barthelemy Fondeur , Anca Sala , Robert Brainard , David Nakamoto , Tom Truong , Sanjay Thekdi , Anantharaman Vaidyanathan
IPC分类号： G03C5/00 , G03F1/14 , G03F7/20 , G03F9/00
CPC分类号： G03F7/70466 , G03F1/50 , G03F1/70
摘要： The present application relates to a method of fabricating planar circuits using a photolithographic mask set, to the photolithographic mask set, and to a planar circuit fabricated with the photolithographic mask set. The instant invention involves separating a photolithographic mask into two parts, namely, a master mask and one or more slave masks. The master mask and the one or more slave masks form a photolithographic mask set that is used iteratively to fabricate the planar circuits. In particular, the master mask is used as a template to provide the general layout for the planar circuit, while each slave mask is varied to tune and/or tailor the planar circuit. Since only a small portion of the planar circuit is redesigned and/or rewritten as a new mask (i.e., the slave mask), the instant invention provides a simple and cost effective method for optimizing planar circuits. Furthermore, since most mask errors will originate from the master mask, the instant invention provides an efficient method of correcting errors on planar circuits using the one or more slave masks.
摘要翻译：本申请涉及使用光刻掩模组，光刻掩模组以及用光刻掩模组制造的平面电路来制造平面电路的方法。本发明涉及将光刻掩模分为两部分，即主掩模和一个或多个从属掩模。主掩模和一个或多个从属掩模形成用于迭代地制造平面电路的光刻掩模组。特别地，主掩模用作模板以提供用于平面电路的总体布局，而每个从屏蔽被改变以调谐和/或定制平面电路。由于只有一小部分平面电路被重新设计和/或重写为新的掩模（即，从属掩模），本发明提供了一种用于优化平面电路的简单且成本有效的方法。此外，由于大多数掩模错误将源自主掩模，本发明提供了使用一个或多个从属掩码来校正平面电路上的误差的有效方法。

3. 发明授权

US06882778B2 Chromatic dispersion compensation in waveguide arrays 失效
标题翻译：波导阵列中的色散补偿
公开(公告)号：US06882778B2
公开(公告)日：2005-04-19
申请号：US10412856
申请日：2003-04-14
申请人： Barthelemy Fondeur , Anca Sala
发明人： Barthelemy Fondeur , Anca Sala
IPC分类号： G02B6/34
CPC分类号： G02B6/12011 , G02B6/12021 , G02B6/29394
摘要： A flat-top arrayed waveguide grating with a Hyper-Gaussian distribution function and a modified sinc design exhibits a very low chromatic dispersion, low loss and requires a relatively small number of waveguides. Controlled loss is introduced into certain waveguides of the array by creating gaps (unguided regions) between the waveguides to produce a desired predetermined amplitude distribution. The gaps are preferably arranged in the middle of the array.
摘要翻译：具有超高斯分布函数和改进的sinc设计的平顶阵列波导光栅表现出非常低的色散，低损耗并且需要相对较少数量的波导。通过在波导之间产生间隙（非导向区域）以产生期望的预定幅度分布，将受控损耗引入到阵列的某些波导中。间隙优选地布置在阵列的中间。

4. 发明申请

US20050018965A1 Dynamic optical demultiplexer/multiplexer formed within a PLC 有权
标题翻译：在PLC内形成的动态光解复用器/多路复用器
公开(公告)号：US20050018965A1
公开(公告)日：2005-01-27
申请号：US10878935
申请日：2004-06-28
申请人： Jinxi Shen , Anca Sala , David Dougherty , David Funk , Douglas Crafts , Barthelemy Fondeur , Pang-Chen Sun
发明人： Jinxi Shen , Anca Sala , David Dougherty , David Funk , Douglas Crafts , Barthelemy Fondeur , Pang-Chen Sun
IPC分类号： G02B6/34 , H04J14/02 , G02B6/28
CPC分类号： G02B6/12019 , H04J14/02
摘要： A demultiplexer/multiplexer is disclosed wherein an arrayed waveguide grating having a reflector at an end includes selectable signal path blockers. The arrayed waveguide device has a common input/output port for launching radiation in the form of an input signal having n wavelengths therein and for receiving back via the reflector at the input/output port a selected channel of the input signal. In operation a multiplexed signal have n channels is launched therein and a selected channel is output for analysis or further processing.
摘要翻译：公开了一种解复用器/多路复用器，其中在一端具有反射器的阵列波导光栅包括可选择的信号路径阻挡器。阵列波导器件具有用于以其中具有n个波长的输入信号的形式发射辐射的公共输入/输出端口，并且用于经由反射器在输入/输出端口处接收输入信号的选定通道的反射。在操作中，多路复用信号在其中发射n个信道，并且输出所选择的信道用于分析或进一步处理。

5. 发明授权

US06728442B2 Controlling the dispersion and passband characteristics of an arrayed waveguide grating 有权
标题翻译：控制阵列波导光栅的色散和通带特性
公开(公告)号：US06728442B2
公开(公告)日：2004-04-27
申请号：US09965677
申请日：2001-09-27
申请人： Mark Missey , Bart Fondeur , Anca Sala
发明人： Mark Missey , Bart Fondeur , Anca Sala
IPC分类号： G02B634
CPC分类号： G02B6/12016
摘要： A method for designing an arrayed waveguide grating that includes input and output couplers, input and output slabs, and a plurality of arms connecting the input and output slabs includes steps of determining a desired amplitude response for the arrayed waveguide grating. A desired dispersion response for the arrayed waveguide grating is determined. Input and output couplers are designed to produce the desired amplitude response. The lengths of the arms of the arrayed waveguide grating are perturbed to produce a flat or linear dispersion. In addition, the polarity of a group delay, dispersion and dispersion slope response of an arrayed waveguide grating can also be changed by adjusting Individual lengths of the waveguide arms. The group delay, dispersion and dispersion slope of a multiplexer and a demultiplexer can be matched to substantially cancel.
摘要翻译：一种用于设计包括输入和输出耦合器，输入和输出板以及连接输入和输出板的多个臂的阵列波导光栅的方法包括确定阵列波导光栅所需幅度响应的步骤。确定阵列波导光栅所需的色散响应。输入和输出耦合器设计用于产生所需的幅度响应。阵列波导光栅的臂的长度被扰动以产生平坦或线性色散。此外，阵列波导光栅的群延迟，色散和色散斜率响应的极性也可以通过调整波导臂的单独长度来改变。可以匹配多路复用器和解复用器的组延迟，色散和色散斜率以基本上消除。

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