公开(公告)号：US20080050063A1

公开(公告)日：2008-02-28

申请号：US11791982

申请日：2004-12-15

申请人： Marco Arioli ,  Mario Martinelli ,  Andrea Melloni ,  Davide Piccinin

发明人： Marco Arioli ,  Mario Martinelli ,  Andrea Melloni ,  Davide Piccinin

IPC分类号： G02B6/35

CPC分类号： G02B6/3504 ,  G02B6/30 ,  G02B6/3546 ,  G02B6/3564

摘要： An optical switching system includes a two-dimensional arrangement of a plurality of switching elements. Each switching element includes an optical guiding structure which includes two pairs of waveguides; a driving arrangement for individually moving the switching elements between at least a first and a second position; and a first and a second input and a second output. When a generic switching element is moved in the first position, the first pair of waveguides connects a first input with a first output, and a second input with a second output; when a generic switching element is moved in the second position, the second pair of waveguides connects the first input with the second output, and the second input with the first output. In a first embodiment, the waveguides are provided on a disc shaped carrier and lie in the same plane, which disc is rotated. In a second embodiment, the two pairs of waveguides lie in different planes and the waveguide carrier plate is moved up and down for switching.

摘要翻译： 光交换系统包括多个开关元件的二维布置。 每个开关元件包括包括两对波导的光导结构; 用于在至少第一和第二位置之间单独移动所述开关元件的驱动装置; 以及第一和第二输入和第二输出。 当通用开关元件在第一位置移动时，第一对波导将第一输入与第一输出连接，第二输入与第二输出连接; 当通用开关元件在第二位置移动时，第二对波导将第一输入与第二输出连接，第二输入与第一输出相连。 在第一实施例中，波导设置在盘形载体上并且位于相同的平面中，该盘旋转。 在第二实施例中，两对波导位于不同的平面中，并且波导载体板上下移动用于切换。

公开(公告)号：US20060140636A1

公开(公告)日：2006-06-29

申请号：US10536807

申请日：2002-11-29

申请人： Lucia Marazzi ,  Mario Martinelli ,  Andrea Melloni ,  Livio Paradiso ,  Paola Parolari

发明人： Lucia Marazzi ,  Mario Martinelli ,  Andrea Melloni ,  Livio Paradiso ,  Paola Parolari

IPC分类号： H04B10/12

CPC分类号： H04B10/25137 ,  H04B10/25253

摘要： An optical communication system has a transmitter generating a phase-modulated optical signal (Sa, Sb, . . . , Sk); a receiver for receiving the phase-modulated optical signal; an optical communication link between the transmitter section and the receiver section. The optical communication link is a dispersion-managed optical communication link having dispersion-compensating elements propagating the phase-modulated optical signal at substantially constant optical power. The receiver has a dispersive element having a prescribed dispersion, the dispersive element receiving and converting the phase-modulated optical signal into a corresponding intensity-modulated optical signal, and an optical intensity detector fed with the intensity-modulated optical signal.

摘要翻译： 光通信系统具有产生相位调制光信号（Sa，Sb ...，Sk）的发射机; 用于接收相位调制光信号的接收机; 在发射机部分和接收机部分之间的光通信链路。 光通信链路是色散管理的光通信链路，其色散补偿元件以基本恒定的光功率传播相位调制的光信号。 接收器具有具有规定色散的色散元件，色散元件接收并将相位调制光信号转换为对应的强度调制光信号，以及馈送有强度调制光信号的光强度检测器。

公开(公告)号：US07324267B2

公开(公告)日：2008-01-29

申请号：US10518855

申请日：2002-06-28

申请人： Andrea Melloni ,  Francesco Morichetti ,  Silvia Maria Pietralunga ,  Mario Martinelli

发明人： Andrea Melloni ,  Francesco Morichetti ,  Silvia Maria Pietralunga ,  Mario Martinelli

IPC分类号： G02F1/35 ,  G02F2/02

CPC分类号： G02F1/3536 ,  G02F1/3534 ,  G02F1/3538 ,  G02F2/004 ,  G02F2001/3542 ,  G02F2201/15 ,  G02F2201/16 ,  G02F2201/17 ,  G02F2201/307 ,  G02F2202/32 ,  G02F2203/15

摘要： A wavelength converter device is provided for generating a converted radiation at frequency ωg through interaction between at least one signal radiation at frequency ωs and at least one pump radiation at frequency ωp, including an input for the at least one signal radiation at frequency ωs, a pump light source for generating the at least one pump radiation at frequency ωp, an output for taking out the converted radiation at frequency ωg, a structure for transmitting the signal radiation, including two optical resonators having a non-linear material, having an optical length of at least 40*λ/2, λ being the wavelength of the pump radiation, and resonating at the pump, signal and converted frequencies ωp, ωs and ωg, wherein by propagating through the structure, the pump and signal radiation generate the converted radiation by non-linear interaction within the optical resonators.

摘要翻译： 提供了一种波长转换器装置，用于通过至少一个频率ω1的信号辐射与至少一个频率ω的泵浦辐射之间的相互作用产生频率ωω的转换的辐射 包括用于频率ω3的至少一个信号辐射的输入，泵浦光源，用于产生频率ω2的至少一个泵浦辐射 ，用于取出频率ωga转换的辐射的输出，用于传输信号辐射的结构，包括具有非线性材料的两个光学谐振器，光学长度为 至少40 *λ/ 2，λ是泵浦辐射的波长，并且在泵谐振，信号和转换频率ωω，ωω和ωω 其中通过传播通过结构，泵和信号辐射通过非线性相互作用产生转换的辐射 在光谐振器内。

公开(公告)号：US20060092500A1

公开(公告)日：2006-05-04

申请号：US10518855

申请日：2002-06-28

申请人： Andrea Melloni ,  Francesco Morichetti ,  Silvia Pietralunga ,  Mario Martinelli

发明人： Andrea Melloni ,  Francesco Morichetti ,  Silvia Pietralunga ,  Mario Martinelli

IPC分类号： G02F2/02

CPC分类号： G02F1/3536 ,  G02F1/3534 ,  G02F1/3538 ,  G02F2/004 ,  G02F2001/3542 ,  G02F2201/15 ,  G02F2201/16 ,  G02F2201/17 ,  G02F2201/307 ,  G02F2202/32 ,  G02F2203/15

摘要： Wavelength converter device for generating a converted radiation at frequency Ωg through interaction between at least one signal radiation at frequency Ωg and at least one pump radiation at frequency Ωg, with an input for the at least one signal radiation at frequency Ωg; a pump light source for generating the at least one pump radiation at frequency Ωg, an output for taking out the converted radiation at frequency Ωg, a structure for transmitting the signal radiation, the structure including one optical resonator having a non-linear material, having an optical length of at least 40*η/2, wavelength η being the wavelength of the pump radiation, and resonating at the pump, signal and converted frequencies Ωp, Ωs, and Ωg. The structure has a further optical resonator coupled in series to the optical resonator, the further optical resonator having a non-linear material, having an optical length of at least 40*η/2, wherein η is the wavelength of the pump radiation, and resonating at the pump, signal and converted Ωp, Ωs and Ωg, wherein by propagating through the structure, the pump and signal radiation generate the converted radiation by non-linear interaction within the optical resonators.

摘要翻译： 波长转换器装置，用于通过至少一个频率ω1的信号辐射与至少一个频率ωω的泵浦辐射之间的相互作用产生频率为ωm的转换的辐射， 具有用于频率为ωm的至少一个信号辐射的输入; 泵浦光源，用于产生频率为Ωm的至少一个泵浦辐射，用于以频率ω1取出转换的辐射的输出，用于传输信号的结构 辐射，该结构包括具有非线性材料的一个光学谐振器，其光学长度至少为40 *η/ 2，波长eta是泵浦辐射的波长，并且在泵谐振，信号和转换频率ω 。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。 该结构具有与光学谐振器串联耦合的另外的光学谐振器，该另一个光学谐振器具有非线性材料，其光学长度至少为40 *η/ 2，其中eta是泵浦辐射的波长，以及 在泵上谐振，信号和转换的欧米茄，欧米茄和欧米茄，其中通过传播通过该结构的泵和信号辐射 在光学谐振器内通过非线性相互作用产生转换的辐射。

公开(公告)号：US06583917B2

公开(公告)日：2003-06-24

申请号：US10022255

申请日：2001-12-20

申请人： Andrea Melloni ,  Mario Martinelli

发明人： Andrea Melloni ,  Mario Martinelli

IPC分类号： G02F103

CPC分类号： G02F1/225 ,  G02F1/0121 ,  G02F1/2255

摘要： An optical intensity modulator for high-speed RZ and NRZ data modulation based on a balanced three-arm Mach-Zehnder interferometer. The three arms are joined at the input and output sides of the device by three-way couplers. The input coupler is structured to couple approximately equal powers into the first and third arms and no more than 50% power into the second arm. In the straight sections of the arms, there is arranged an AC electrode structure for applying an RF modulation signal and a DC electrode structure for biasing the device at a working point. The AC electrode structure is arranged so that an applied modulation signal induces a negative phase shift (−&Dgr;&phgr;) in the first arm in relation to the second arm and a positive phase shift (+&Dgr;&phgr;) in the third arm in relation to the second arm.

摘要翻译： 一种基于平衡三臂马赫 - 曾德干涉仪的高速RZ和NRZ数据调制的光强度调制器。 三个臂通过三通耦合器在设备的输入和输出侧连接。 输入耦合器被构造成将大致相等的功率耦合到第一和第三臂中，并且不超过50％的功率进入第二臂。 在臂的直线部分中，布置有用于施加RF调制信号的AC电极结构和用于在工作点处偏置该装置的DC电极结构。 AC电极结构被布置成使得所施加的调制信号相对于第二臂在第一臂中引起负相移（-DELTAFT），并且相对于第二臂在第三臂中产生正相移（+ DELTAphi） 。

公开(公告)号：US08023822B2

公开(公告)日：2011-09-20

申请号：US11883943

申请日：2005-02-10

申请人： Raffaella Costa ,  Giuseppe Cusmai ,  Andrea Melloni

发明人： Raffaella Costa ,  Giuseppe Cusmai ,  Andrea Melloni

IPC分类号： H04J14/00

CPC分类号： G02B6/29352 ,  G02B6/12011 ,  G02B6/12021

摘要： A three-arm-Mach-Zehnder interferometer for splitting/combining a first and a second wavelength band, wherein the optical device includes: a first and second optical splitting/combining element; a differential optical delay device comprising a first, a second and a third optical path; each of the first and second optical splitting/combining elements, is of the (25-50-25%)λx(0-0-100%)λy type, wherein λx is a wavelength with the first optical band and λy is a wavelength with the second optical band, and the first, second and third optical paths of the differential optical delay device are configured to introduce, at a wavelength λz within the first optical band, a phase delay Δφ of 2πm.

摘要翻译： 一种用于分割/组合第一和第二波长带的三臂马赫 - 曾德干涉仪，其中所述光学装置包括：第一和第二光学分离/组合元件; 差分光学延迟装置，包括第一，第二和第三光路; 第一和第二光分路/组合元件中的每一个具有（25-50-25％）λx（0-0-100％）λy类型，其中λx是具有第一光带的波长，λy是波长 所述差分光学延迟装置的第一，第二和第三光路被配置为在所述第一光学带内的波长λz处引入相位延迟＆Dgr; 的2＆pgr; m。

公开(公告)号：US20090041462A1

公开(公告)日：2009-02-12

申请号：US11883943

申请日：2005-02-10

申请人： Raffaella Costa ,  Giuseppe Cusmai ,  Andrea Melloni

发明人： Raffaella Costa ,  Giuseppe Cusmai ,  Andrea Melloni

IPC分类号： G02B6/28 ,  H04B10/00 ,  H04J14/02

CPC分类号： G02B6/29352 ,  G02B6/12011 ,  G02B6/12021

摘要： A three-arm-Mach-Zehnder interferometer for splitting/combining a first and a second wavelength band, wherein the optical device includes: a first and second optical splitting/combining element; a differential optical delay device comprising a first, a second and a third optical path; each of the first and second optical splitting/combining elements, is of the (25-50-25%)λx(0-0-100%)λy type, wherein λx is a wavelength with the first optical band and λy is a wavelength with the second optical band, and the first, second and third optical paths of the differential optical delay device are configured to introduce, at a wavelength λz within the first optical band, a phase delay Δφ of 2πm.

摘要翻译： 一种用于分割/组合第一和第二波长带的三臂马赫 - 曾德干涉仪，其中所述光学装置包括：第一和第二光学分离/组合元件; 差分光学延迟装置，包括第一，第二和第三光路; 第一和第二光分裂/组合元件中的每一个具有（25-50-25％）羊羔（0-0-100％）羊羔类型，其中羔羊是具有第一光学带的波长，而蓝天是波长 所述差分光学延迟装置的第一，第二和第三光路被配置为在所述第一光学波段内的波长兰德兹引入2pim的相位延迟Deltaphi。

公开(公告)号：US20080044126A1

公开(公告)日：2008-02-21

申请号：US10566948

申请日：2003-08-04

申请人： Raffaella Costa ,  Giuseppe Cusmai ,  Andrea Melloni

发明人： Raffaella Costa ,  Giuseppe Cusmai ,  Andrea Melloni

IPC分类号： G02B6/12

CPC分类号： G02B6/1228 ,  G02B6/305 ,  G02B2006/12097

摘要： An integrated optical waveguide structure having a waveguide core for guiding an optical field, formed on a lower cladding layer. The waveguide core has a waveguide core layer substantially coextensive to the lower cladding layer and having a substantially uniform thickness, and a waveguide core rib of a substantially uniform height protruding from a surface of the waveguide core layer opposite to a surface thereof facing the lower cladding layer. A layout of the waveguide core rib defines a path for the guided optical field. The integrated optical waveguide structure has a circuit waveguide portion in which the waveguide core layer has a first width, adapted for guiding the optical field through an optical circuit, and at least one coupling waveguide portion adapted for coupling the circuit waveguide portion to an external optical field. The coupling portion has a terminal waveguide core rib portion having a second width lower than the first width and terminating in a facet, and a transition waveguide core rib portion optically joining to each other the circuit waveguide portion and the terminal waveguide portion, the transition waveguide core rib portion being laterally tapered so that a width thereof decreases from the first width to the second width. The waveguide structure allows an integrated optical device designer satisfying optical circuits needs and, at the same time, ensuring a satisfactory coupling efficiency with an external field.

摘要翻译： 一种集成光波导结构，其具有用于引导光场的波导芯，形成在下包层上。 波导芯具有与下包层基本共同延伸并且具有基本均匀的厚度的波导芯层，和从波导芯层的面向下包层的表面相反的表面突出的基本上均匀的高度的波导芯肋 层。 波导芯肋的布局限定了用于引导光场的路径。 集成光波导结构具有电路波导部分，其中波导芯层具有第一宽度，适于通过光电路引导光场;以及至少一个耦合波导部分，其适于将电路波导部分耦合到外部光 领域。 耦合部分具有端子波导芯肋部分，其具有低于第一宽度的第二宽度并且终止于小面;以及过渡波导芯肋部分，其彼此光学地接合电路波导部分和端子波导部分，过渡波导 芯肋部分是横向渐缩的，使得其宽度从第一宽度减小到第二宽度。 波导结构允许集成的光学器件设计者满足光电路的需要，并且同时确保与外部场的令人满意的耦合效率。

公开(公告)号：US08433196B2

公开(公告)日：2013-04-30

申请号：US13230454

申请日：2011-09-12

申请人： Raffaella Costa ,  Giuseppe Cusmai ,  Andrea Melloni

发明人： Raffaella Costa ,  Giuseppe Cusmai ,  Andrea Melloni

IPC分类号： H04J14/02

CPC分类号： G02B6/29352 ,  G02B6/12011 ,  G02B6/12021

摘要： A three-arm-Mach-Zehnder interferometer for splitting/combining first and second wavelength bands is provided, wherein the optical device includes first and second optical splitting/combining elements; a differential optical delay device comprising first, second and third optical paths; the first, second and third optical paths of the differential optical delay device are configured to introduce, at a wavelength λz within the first optical band, a phase delay of 2πm.

摘要翻译： 提供了用于分割/组合第一和第二波长带的三臂马赫 - 曾德干涉仪，其中光学装置包括第一和第二光学分离/组合元件; 差分光学延迟器件，包括第一，第二和第三光路; 差分光学延迟器件的第一，第二和第三光路被配置为在第一光学波段内的波长兰普达兹引入2pim的相位延迟。

公开(公告)号：US07302135B2

公开(公告)日：2007-11-27

申请号：US10479579

申请日：2002-05-28

申请人： Andrea Melloni ,  Raffaella Costa ,  Federico Carniel

发明人： Andrea Melloni ,  Raffaella Costa ,  Federico Carniel

IPC分类号： G02B6/02

CPC分类号： G02B6/125 ,  G02B2006/12038 ,  G02B2006/12147 ,  G02B2006/1215

摘要： Waveguide bends are specially designed according to a matching condition in order to suppress mode distortion and other undesirable effects. The bend is structured having regard to its length and curvature to ensure that at its end the first and second bend modes are substantially in phase with each other having completed approximately an integer number of beats. By being in phase at the end of the bend, the two modes are able to properly reconstruct the first mode of the straight waveguide and propagate on with a minimum of distortion, whether it be into a straight section, a further curved section of arbitrary curvature, into a free space propagation region and the like. This approach suppresses mode distortion, transition losses and other negative effects of waveguide bends. Device applications include couplers, Y-branches and Mach-Zehnder interferometers, all of which include waveguide bends.

摘要翻译： 波导弯曲根据匹配条件进行专门设计，以抑制模式失真和其他不良影响。 考虑到其长度和曲率来构造弯曲部，以确保在其端部处，第一和第二弯曲模式基本上彼此相位已经完成大约整数个节拍。 通过在弯曲结束时处于同相，两种模式能够适当地重建直波导的第一模式并且以最小的失真传播，无论其是直线部分，还是任意曲率的弯曲部分 ，进入自由空间传播区域等。 该方法抑制波导弯曲的模式失真，转变损耗和其他负面影响。 器件应用包括耦合器，Y分支和Mach-Zehnder干涉仪，所有这些都包括波导弯曲。