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1. 发明申请

WO2009022361A8 ELECTRICALLY DRIVEN OPTICAL FREQUENCY SHIFTER 审中-公开
公开(公告)号：WO2009022361A8
公开(公告)日：2009-02-19
申请号：PCT/IT2007/000587
申请日：2007-08-14
申请人： SELEX SISTEMI INTEGRATI S.P.A. , DISPENZA, Massimiliano , FIORELLO, Anna Maria , VARASI, Mauro
发明人： DISPENZA, Massimiliano , FIORELLO, Anna Maria , VARASI, Mauro
IPC分类号： G02F1/225 , G02F2/02
摘要： Disclosed herein is an optical frequency shifter (1) provided with: an electro-optical substrate (3) having a main surface (3a); an optical waveguide structure (2) formed in the substrate (3) and having two waveguide portions (7), which are spaced apart by a distance (S) such as to ensure mutual optical coupling therebetween; and an electrode structure (10) arranged above the main surface (3a) of the substrate (3) and having at least a first electrode (11). The substrate (3) has a Z-cut crystalline structure with Z crystal axis orthogonal to the main surface (3a) and comprises two oppositely poled portions (20, 21) having opposite orientations of the Z crystal axis; the two waveguide portions (7) are arranged underneath the first electrode (11), each in a respective one of the two oppositely poled portions (20, 21).

2. 发明申请

WO2009022362A8 ELECTRICALLY-DRIVEN, HIGH EXTINCTION RATIO OPTICAL MODULATOR 审中-公开
标题翻译：电动驱动，高放电比例光学调制器
公开(公告)号：WO2009022362A8
公开(公告)日：2009-09-17
申请号：PCT/IT2007000588
申请日：2007-08-14
申请人： SELEX SISTEMI INTEGRATI SPA , DISPENZA MASSIMILIANO , VARASI MAURO
发明人： DISPENZA MASSIMILIANO , VARASI MAURO
IPC分类号： G02F1/225 , G02B6/125
CPC分类号： G02F1/225 , G02B6/4227 , G02F2201/05
摘要： Disclosed herein is an optical modulator (1) coupled to an optical fiber (7) and providing a modulated optical signal based on the input optical signal received from the optical fiber; the optical modulator (1) is provided with an electro-optical substrate (3) and an optical waveguide structure (2) formed in the substrate (3) and having an input branch (6) coupled to the optical fiber (7), an output branch (10) outputting the modulated optical signal, and a first and a second arms (12a, 12b) branching off from the input branch (6) and merging into the output branch (10). In particular, the input branch (6) is configured so as to be at least bimodal, and the optical fiber (7) is so arranged with respect to the input branch (6) to excite a first and at least a second optical propagation mode and to provide the first and second optical propagation modes with respective given amounts of optical power, to compensate for different optical losses of the first and second arms (12a, 12b).
摘要翻译：本文公开了一种光调制器（1），其耦合到光纤（7）并且基于从光纤接收的输入光信号提供调制的光信号; 光调制器（1）设置有形成在基板（3）中并且具有耦合到光纤（7）的输入支路（6）的电光基板（3）和光波导结构（2）输出调制光信号的输出分支（10）和从输入分支（6）分支出并合并到输出分支（10）中的第一和第二臂（12a，12b）。特别地，输入分支（6）被配置为至少是双模的，并且光纤（7）相对于输入分支（6）被布置成这样来激发第一和至少第二光传播模式并且提供具有各自给定量的光功率的第一和第二光传播模式，以补偿第一和第二臂（12a，12b）的不同光学损耗。

3. 发明申请

WO2009022362A1 ELECTRICALLY-DRIVEN, HIGH EXTINCTION RATIO OPTICAL MODULATOR 审中-公开
标题翻译：电动驱动，高放电比例光学调制器
公开(公告)号：WO2009022362A1
公开(公告)日：2009-02-19
申请号：PCT/IT2007/000588
申请日：2007-08-14
申请人： SELEX SISTEMI INTEGRATI S.P.A. , DISPENZA, Massimiliano , VARASI, Mauro
发明人： DISPENZA, Massimiliano , VARASI, Mauro
IPC分类号： G02F1/225 , G02B6/125
CPC分类号： G02F1/225 , G02B6/4227 , G02F2201/05
摘要： Disclosed herein is an optical modulatqr (1) coupled to an optical fiber (7) and providing a modulated optical signal based on the input optical signal received from the optical fiber; the optical modulator (1) is provided with an electro-optical substrate (3) and an optical waveguide structure (2) formed in the substrate (3) and having an input branch (6) coupled to the optical fiber (7), an output branch (10) outputting the modulated optical signal, and a first and a second arms (12a, 12b) branching off from the input branch (6) and merging into the output branch (10). In particular, the input branch (6) is configured so as to be at least bimodal, and the optical fiber (7) is so arranged with respect to the input branch (6) to excite a first and at least a second optical "propagation mode and to provide the first and second optical propagation modes with respective given amounts of optical power, to compensate for different optical losses of the first and second arms (12a, 12b).
摘要翻译：本文公开了一种耦合到光纤（7）的光学调制器（1），并且基于从光纤接收的输入光信号提供调制光信号; 光调制器（1）设置有形成在基板（3）中并且具有耦合到光纤（7）的输入支路（6）的电光基板（3）和光波导结构（2）输出调制光信号的输出分支（10）和从输入分支（6）分支出并合并到输出分支（10）中的第一和第二臂（12a，12b）。特别地，输入分支（6）被配置为至少是双模的，并且光纤（7）相对于输入分支（6）被布置得如此布置以激发第一和至少第二光学“传播并且提供具有各自给定量的光功率的第一和第二光传播模式，以补偿第一和第二臂（12a，12b）的不同的光学损耗。

4. 发明申请

WO2009022361A1 ELECTRICALLY DRIVEN OPTICAL FREQUENCY SHIFTER 审中-公开
标题翻译：电动驱动光学变频器
公开(公告)号：WO2009022361A1
公开(公告)日：2009-02-19
申请号：PCT/IT2007000587
申请日：2007-08-14
申请人： SELEX SISTEMI INTEGRATI SPA , DISPENZA MASSIMILIANO , FIORELLO ANNA MARIA , VARASI MAURO
发明人： DISPENZA MASSIMILIANO , FIORELLO ANNA MARIA , VARASI MAURO
IPC分类号： G02F1/225 , G02F2/02
CPC分类号： G02F1/225 , G02F1/0316 , G02F2/02 , G02F2202/07 , Y10T29/49117
摘要： Disclosed herein is an optical frequency shifter (1) provided with: an electro-optical substrate (3) having a main surface (3a); an optical waveguide structure (2) formed in the substrate (3) and having two waveguide portions (7), which are spaced apart by a distance (S) such as to ensure mutual optical coupling therebetween; and an electrode structure (10) arranged above the main surface (3a) of the substrate (3) and having at least a first electrode (11). The substrate (3) has a Z-cut crystalline structure with Z crystal axis orthogonal to the main surface (3a) and comprises two oppositely poled portions (20, 21) having opposite orientations of the Z crystal axis; the two waveguide portions (7) are arranged underneath the first electrode (11), each in a respective one of the two oppositely poled portions (20, 21).
摘要翻译：本文公开了一种光学移频器（1），其具有：具有主表面（3a）的电光基板（3）; 形成在所述基板（3）中并且具有两个间隔开距离（S）的两个波导部分（7）的光波导结构（2），以确保它们之间的相互光耦合; 以及布置在所述基板（3）的主表面（3a）上方并且具有至少第一电极（11）的电极结构（10）。所述基板（3）具有与所述主表面（3a）正交的Z晶轴的Z切割晶体结构，并且包括具有与所述Z晶轴相反取向的两个相对极化部分（20,21）。两个波导部分（7）被布置在第一电极（11）的下方，每个在两个相对极化部分（20,21）中的相应一个中。

5. 发明申请

WO2009022360A1 LOW SWITCHING VOLTAGE, FAST TIME RESPONSE DIGITAL OPTICAL SWITCH 审中-公开
标题翻译：低开关电压，快速响应数字光开关
公开(公告)号：WO2009022360A1
公开(公告)日：2009-02-19
申请号：PCT/IT2007/000586
申请日：2007-08-14
申请人： SELEX SISTEMI INTEGRATI S.P.A. , PIERNO, Luigi , DISPENZA, Massimiliano
发明人： PIERNO, Luigi , DISPENZA, Massimiliano
IPC分类号： G02F1/313 , G02F1/03
CPC分类号： G02F1/3137 , G02F1/0316 , G02F2201/07 , G02F2203/21
摘要： Disclosed herein is a digital electro-optical switch (1) comprising: - an electro-optical substrate (3); - a Y-shaped optical waveguide (2) formed in the substrate (3) and including an input branch (4) configured to be connected to an input optical waveguide, and two output branches (5) configured to be connected to respective output optical waveguides; and - electrically conductive electrodes (6, 7) formed on the substrate (3) and including an inner electrode (7) arranged between the output branches (5), substantially at a branching area of the optical waveguide (2), and two outer electrodes (6) arranged outside the output branches (5), on opposite sides of the inner electrode (7), the outer electrodes (6) being electrically operable to make the electro-optical switch (1) operative between a first switching state wherein transmission of optical energy is enhanced between the input branch (4) and a first one of the output branches (5), and substantially inhibited in a second one of the output branches (5), and a second switching state wherein transmission of optical energy is enhanced between the input branch (4) and the second output branch (5), and substantially inhibited in the first output branch (5); and - an optically transparent, electrically conductive film (9) arranged between each electrode (6, 7) and the substrate (3).
摘要翻译：本文公开了一种数字电光开关（1），包括： - 电光基板（3）; - 形成在所述基板（3）中并且包括被配置为连接到输入光波导的输入分支（4）的Y形光波导（2），以及两个输出分支（5），被配置为连接到相应的输出光学波导; 以及 - 形成在所述基板（3）上并且包括布置在所述输出分支（5）之间的大体在所述光波导（2）的分支区域处的内部电极（7）的导电电极（6,7）和两个外部布置在输出分支（5）的外部，在内部电极（7）的相对侧上的电极（6），外部电极（6）可电动操作以使电光开关（1）在第一切换状态在输入分支（4）和输出分支（5）中的第一输出分支（5）之间增强了光能的传输，并且在输出分支（5）中的第二输出分支（5）中基本上被抑制，以及第二切换状态，其中光能量的传输在输入分支（4）和第二输出分支（5）之间增强，并且在第一输出分支（5）中基本上被禁止; 以及 - 布置在每个电极（6,7）和所述基板（3）之间的光学透明的导电膜（9）。

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