公开(公告)号：US20040258357A1

公开(公告)日：2004-12-23

申请号：US10869882

申请日：2004-06-18

申请人： ALCATEL

发明人： Carlos De Barros ,  Marianne Molina ,  Isabelle Riant

IPC分类号： G02B006/34

CPC分类号： G02B6/02085 ,  G02B6/02095 ,  G02B6/14 ,  G02B6/29317

摘要： An optical filter comprises a first mode converter converting an incident light signal propagating in an incident mode into a signal propagating in a propagation mode LPnm of order higher than that of said incident mode; a second mode converter converting the light signal of higher propagation order LPnm into a signal propagating in the incident propagation mode; and a slanted Bragg grating disposed between said first and second mode converters and adapted to couple the higher propagation order light signal LPnm in back-propagation into said incident mode. The filter is applicable to flattening gain and to multiplexing DWDM signals.

摘要翻译： 光滤波器包括：将入射模式传播的入射光信号转换为以比所述入射模式高的传播模式LPnm传播的信号的第一模式转换器; 第二模式转换器将较高传播阶数LPnm的光信号转换为在入射传播模式中传播的信号; 以及设置在所述第一和第二模式转换器之间并适于将反向传播中的较高传播级光信号LPnm耦合到所述入射模式中的倾斜布拉格光栅。 滤波器适用于平坦化增益和复用DWDM信号。

公开(公告)号：US20040252943A1

公开(公告)日：2004-12-16

申请号：US10462385

申请日：2003-06-16

发明人： Harry Schilling

IPC分类号： G02B006/34

CPC分类号： G02B6/42 ,  G02B6/00 ,  G02B6/02 ,  G02B6/26 ,  G02B6/2817 ,  G02B6/2852 ,  G02B6/34 ,  G02B6/4202 ,  G02B6/4206 ,  G02B6/4214 ,  G02B6/43 ,  G02B2006/12107 ,  H05K1/0274

摘要： What is described here is a method of or a device for transferring optical signals. An optical conductor including a light-conducting core, which has at lest two parallel interfaces provided with coatings that result in a reflection of the light guided in the light-conducting core, comprises at least one means for coupling the emitter or the receiver, respectively, by diffraction, refraction or diffusion.

摘要翻译： 这里描述的是用于传送光信号的方法或设备。 包括导光芯的光导体，其具有至少两个平行的界面，其设置有导致在导光芯中引导的光的反射的涂层，分别包括用于分别耦合发射器或接收器的至少一个装置 ，通过衍射，折射或扩散。

公开(公告)号：US20040252364A1

公开(公告)日：2004-12-16

申请号：US10831338

申请日：2004-04-23

申请人： Teraxion Inc.

发明人： Yves Painchaud

IPC分类号： G02B006/34 ,  G02F001/33

CPC分类号： G02B6/02152 ,  G02B6/02123 ,  G02B6/02171 ,  G02B6/02185

摘要： Methods to improve the optical properties of Bragg gratings are disclosed. A first method includes a post correction of the refractive index profile by applying an average index correction thereto. The average index correction is obtained through an analysis of the defects of the refractive index profile characterised through a reconstruction thereof. A second method includes a pre-correction to the refractive index profile by characterising the defects of a test grating, and again calculating an average index correction based thereon. Further gratings are then made using a corrected refractive index profile.

摘要翻译： 公开了改善布拉格光栅的光学特性的方法。 第一种方法包括通过对其进行平均指数校正来对折射率分布进行后校正。 通过对通过其重建表征的折射率分布的缺陷的分析来获得平均指数校正。 第二种方法包括通过表征测试光栅的缺陷对折射率分布进行预校正，并且再次基于此计算平均折射率校正。 然后使用校正的折射率分布来制作另外的光栅。

公开(公告)号：US20040240788A1

公开(公告)日：2004-12-02

申请号：US10867949

申请日：2004-06-14

发明人： Jun-Fei Zheng ,  Kazumi Wada ,  Jurgen Michel ,  Donghwan Ahn ,  Lionel C. Kimerling

IPC分类号： G02B006/34

CPC分类号： G02B6/124 ,  G02B6/42

摘要： An optical grating is disposed on a waveguide to redirect light from the interior of the waveguide through the opposite side of the waveguide from the grating. In one embodiment the waveguide, the grating, and an optical sensor are combined in a single monolithic structure. In another embodiment, an absorbing layer is directly connected to the waveguide in the region of the grating. In still another embodiment, efficiency of the grating is improved by having a high index contrast between the refractive index of the grating and the refractive index of the cladding disposed over the grating, and by having an appropriately sized discontinuity in the grating.

摘要翻译： 光波导设置在波导上，以将来自波导内部的光通过波导的与光栅相反的一侧引导。 在一个实施例中，波导，光栅和光学传感器被组合成单个整体结构。 在另一个实施例中，吸收层在光栅的区域中直接连接到波导。 在另一个实施例中，通过在光栅的折射率和设置在光栅上的包层的折射率之间具有高折射率对比度，以及通过在光栅中具有适当尺寸的不连续性来提高光栅的效率。

公开(公告)号：US20040223695A1

公开(公告)日：2004-11-11

申请号：US10778897

申请日：2004-02-12

申请人： Avanex Corporation, a Delaware Corporation

发明人： Peter Kersten ,  Gerhard Schreiber ,  Roland Munzner

IPC分类号： G02B006/34

CPC分类号： G02B6/12004 ,  G02B6/124 ,  G02B2006/12107

摘要： An optical component comprising an optical waveguide and adjacent to it at least one grating array adapted to reflect stray light away from said optical waveguide. The use of a grating array with a plurality of structures like polygons or stripes gives the possibility to define a multiple of reflection directions. This is obtained by using polygons layed out in different orientations up to a random one or a Bragg grating preferably defined with a non-uniform period (chirped). Such grating arrays are usually structured within the same layer as the optical waveguide core layer.

摘要翻译： 一种光学部件，包括光波导并与其相邻的至少一个适于反射杂散光远离所述光波导的光栅阵列。 使用具有多个结构（诸如多边形或条纹）的光栅阵列给出了定义多个反射方向的可能性。 这是通过使用以不同方向布置的多边形直到随机的，或者优选地以非均匀周期（啁啾）限定的布拉格光栅获得的。 这种光栅阵列通常构成与光波导芯层相同的层。

公开(公告)号：US20040218863A1

公开(公告)日：2004-11-04

申请号：US10858306

申请日：2004-06-01

发明人： Paul Andrew Skull ,  Matthew Roy Hill

IPC分类号： G02B006/34

CPC分类号： G02B6/0218 ,  H01S3/06704 ,  H01S3/0675

摘要： An optical filter having at least one optical fiber component and a thermal compensation device which includes a first, second and third member in which the thermal compensation device has a first and a second fixing point, the first, second and third members are made from materials having first, second and third thermal expansion coefficients, the optical fiber component is attached to the thermal compensation device at the first and the second fixing points thus defining a composite thermal expansion. The optical filter is such that the composite thermal expansion compensates for thermal behavior of the optical fiber component.

摘要翻译： 一种具有至少一个光纤部件和热补偿装置的光学滤光器，其包括第一，第二和第三部件，其中热补偿装置具有第一和第二固定点，第一，第二和第三部件由材料制成 具有第一，第二和第三热膨胀系数，光纤部件在第一和第二固定点处附接到热补偿装置，从而限定复合热膨胀。 光学滤波器使得复合热膨胀补偿光纤部件的热行为。

公开(公告)号：US20040218860A1

公开(公告)日：2004-11-04

申请号：US10642573

申请日：2003-08-19

发明人： Chao-Ming Koh ,  Jia-Ching Doong ,  Hsien-Tzu Chang ,  Hao-Cheng Hung

IPC分类号： G02B006/34

CPC分类号： G02B6/02138 ,  G02B6/124

摘要： A method for fabricating Fiber Bragg Grating elements and planar light circuits made thereof. A mask having a predetermined pattern and a wafer are provided, wherein a light-guiding channel filled with light-guiding substance is formed on the wafer. A photoresist layer is then formed to cover the wafer. Magnification of a photolithography apparatus is adjusted to a first Mag., followed by transferring the pattern on the mask to the photoresist layer to form a first pattern. Light-guiding substance not covered by the photoresist layer is then removed so that the first pattern is transferred to the light-guiding channel. The light-guiding channel then forms a Fiber Bragg Grating element.

摘要翻译： 一种制造光纤布拉格光栅元件的方法和由其制成的平面光电路。 提供具有预定图案的掩模和晶片，其中在晶片上形成填充有导光物质的导光通道。 然后形成光致抗蚀剂层以覆盖晶片。 将光刻设备的放大倍数调整到第一个Mag。然后将掩模上的图案转印到光致抗蚀剂层上以形成第一图案。 然后除去未被光致抗蚀剂层覆盖的导光物质，使得第一图案被转印到导光通道。 导光通道然后形成光纤布拉格光栅元件。

公开(公告)号：US20040208445A1

公开(公告)日：2004-10-21

申请号：US10683888

申请日：2003-10-10

申请人： RJ MEARS LLC

发明人： Robert J. Mears ,  Michael Charles Parker

IPC分类号： G02B006/34

CPC分类号： G02B6/02085 ,  G02B6/124 ,  H01S5/1206

摘要： A method for producing aperiodic gratings and waveguides with aperiodic gratings uses a simulated annealing process that starts with a random configuration of grating elements and iteratively computes a spectral response from a Fourier transform of the configuration of grating elements obtained in successive iterations. A cost function is computed as a convergence criterion. The aperiodic grating can be used, for example, as a filter in WDM applications.

摘要翻译： 用于制造具有非周期光栅的非周期性光栅和波导的方法使用从光栅元件的随机配置开始的模拟退火处理，并且从连续迭代中获得的光栅元件的配置的傅里叶变换迭代地计算光谱响应。 计算成本函数作为收敛标准。 非周期性光栅可用于例如WDM应用中的滤波器。

公开(公告)号：US20040202421A1

公开(公告)日：2004-10-14

申请号：US10485627

申请日：2004-02-02

发明人： Kazuo Iiduka ,  Toshiyuki Watanabe ,  Noriyuki Ikuta ,  Hisanobu Tanigawa ,  Takatsugu Yuasa

IPC分类号： G02B006/34

CPC分类号： G02B6/12026 ,  G02B2006/12135 ,  G05D23/1902 ,  G05D23/1917

摘要： In a temperature control device which maintains an object to be controlled at a preset constant temperature and an arrayed waveguide grating optical wavelength multiplexer/demultiplexer, the adverse effect of the junction temperature of the semiconductor control element is eliminated for the purpose of simplifying the overall structure and improving operation efficiency sufficiently without any trouble. The object 10 to be controlled, which is an arrayed waveguide grating optical wavelength multiplexing/demultiplexing element, is fixed on the soaking plate 2 which is made from a good heat conductive material. The semiconductor control element 3 with a control terminal which functions as a heat generator by using its-junction temperature and a temperature sensor 5 are fixed on the soaking plate 2. A negative feedback control is applied to the conduction condition of the semiconductor control element 3 in accordance with the error signal s3 which indicates the difference between the present temperature signal s2 obtained from the temperature detection signal s4 transmitted from the temperature sensor 5 and the preset target temperature signal s1. Consequently, the junction temperature of the semiconductor control element 3 is effectively used as a heating source not as a loss, thereby reducing the power consumption and stabilizing the performance.

摘要翻译： 在将待控制的物体保持在预定的恒定温度的温度控制装置和阵列波导光栅光学波长多路复用器/解复用器中，为了简化整体结构，省略了半导体控制元件的结温的不利影响 充分提高运行效率，无任何麻烦。 作为阵列波导光栅光波分复用/解复用元件的被控制物10被固定在由良好的导热材料制成的均热板2上。 具有通过使用其结温作为发热体的控制端子的半导体控制元件3和温度传感器5固定在均热板2上。对半导体控制元件3的导通状态施加负反馈控制 根据表示从温度传感器5发送的温度检测信号s4得到的当前温度信号s2与预先设定的目标温度信号s1之差的误差信号s3。 因此，半导体控制元件3的结温被有效地用作不是损耗的加热源，从而降低功耗并使性能稳定。

公开(公告)号：US20040202420A1

公开(公告)日：2004-10-14

申请号：US10410931

申请日：2003-04-10

发明人： John A. Rogers ,  Todd R. Salamon

IPC分类号： G02B006/34 ,  G02B006/26

CPC分类号： G02B6/02204

摘要： Wide range linear tuning of optical gratings is possible by selecting a thin film heater such that the temperature variation in heater's resistivity null matches the temperature variation in the heat transfer coefficient of air h. A tunable optical device, such as a fiber grating with such a grating heater, exhibits near linear tuning characteristics over a wide range of temperatures and tuning currents. The heater is useable in other heat tunable optical devices such as interferometers.

摘要翻译： 通过选择薄膜加热器使加热器的电阻率rho的温度变化与空气传热系数h的温度变化相匹配，可以实现光栅的宽范围线性调谐。 诸如具有这种光栅加热器的光纤光栅的可调谐光学器件在宽范围的温度和调谐电流下表现出接近的线性调谐特性。 加热器可用于其它热可调谐光学器件，如干涉仪。