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1. 发明授权

US08897606B2 Ring resonator with wavelength selectivity 有权
标题翻译：具有波长选择性的环形谐振器
公开(公告)号：US08897606B2
公开(公告)日：2014-11-25
申请号：US12928076
申请日：2010-12-01
申请人： Mehdi Asghari , Dazeng Feng , Po Dong , Roshanak Shafiiha , Shirong Liao , Ning-Ning Feng
发明人： Mehdi Asghari , Dazeng Feng , Po Dong , Roshanak Shafiiha , Shirong Liao , Ning-Ning Feng
IPC分类号： G02F1/225 , G02B6/26
CPC分类号： G02F1/2257 , G02F2201/122 , G02F2203/15
摘要： The ring resonator includes waveguides configured to guide light signals. The waveguides include an input waveguide and one or more loop waveguides. One of the loop waveguides is a primary loop waveguide that is optically coupled with the input waveguide at a wavelength of light. A tuner is configured to tune the wavelength at which the light is optically coupled from the input waveguide into the primary loop waveguide. One or more light detectors are each configured to provide an output indicating an intensity of light guided in one of the one or more loop waveguides. Electronics are configured to tune the tuner in response to the output from the light detector.
摘要翻译：环形谐振器包括被配置为引导光信号的波导。波导包括输入波导和一个或多个环形波导。环路波导之一是在波长为光的情况下与输入波导光耦合的主要环路波导。调谐器被配置为调节光从输入波导光耦合到主环形波导中的波长。一个或多个光检测器被配置为提供指示在一个或多个环形波导之一中引导的光的强度的输出。电子设备被配置为响应于来自光检测器的输出来调谐调谐器。

2. 发明授权

US08728837B2 Enhancing uniformity of slab region thickness in optical components 有权
标题翻译：提高光学部件中板坯厚度的均匀性
公开(公告)号：US08728837B2
公开(公告)日：2014-05-20
申请号：US13506910
申请日：2012-05-23
申请人： Joan Fong , Wei Qian , Dazeng Feng , Mehdi Asghari
发明人： Joan Fong , Wei Qian , Dazeng Feng , Mehdi Asghari
IPC分类号： H01L21/00
CPC分类号： G02F1/025 , G02B6/136 , H01S5/209 , H01S5/22
摘要： A method of forming an optical device includes generating a device precursor having a layer of a light-transmitting medium on a base. The method also includes forming an etch stop on the layer of light-transmitting medium. An active medium is grown on the etch stop and on the light-transmitting medium such that the light-transmitting medium is between the base and the grown active medium. The grown active medium is etched down to the etch stop so as to define a ridge in the active medium. The ridge of active medium defines a portion of a component waveguide that will guide a light signal through an active component on the device.
摘要翻译：形成光学器件的方法包括在基底上产生具有透光介质层的器件前体。该方法还包括在光透射介质层上形成蚀刻停止层。在蚀刻停止点和透光介质上生长活性介质，使得透光介质位于基底和生长的活性介质之间。将生长的活性介质蚀刻到蚀刻停止层，以便限定活性介质中的脊。有源介质的脊限定了将导引光信号穿过器件上的有源部件的部件波导的一部分。

3. 发明授权

US08463093B2 Extension of steps in reflective optical gratings 有权
标题翻译：在反射光栅中延伸台阶
公开(公告)号：US08463093B2
公开(公告)日：2013-06-11
申请号：US12800600
申请日：2010-05-18
申请人： Dazeng Feng , Wei Qian , Mehdi Asghari
发明人： Dazeng Feng , Wei Qian , Mehdi Asghari
IPC分类号： G02B6/34 , G02B6/26 , G02B6/28 , G02B6/10
CPC分类号： G02B5/1861 , G02B6/12007 , G02B6/29326 , G02B6/29328 , G02B2006/12107
摘要： An optical device includes a light-transmitting medium positioned on a base. The light-transmitting medium at least partially defines a free propagation region through which light signals travel. A reflective grating includes stepped reflecting surfaces positioned such that light signals that travel through the free propagation region are received by the reflecting surfaces. The reflecting surfaces are configured to reflect the light signal back into the free propagation region such that the light signals associated with different wavelengths separate as the light signals travel through the free propagation region. At least a portion of the reflecting surfaces each includes an overlapping region. Additionally, at least a portion of the reflecting surfaces each includes an overlapped region and un un-overlapped region. The reflecting grating is configured such that the light signals travel toward the overlapped regions and the un-overlapped regions before being reflected. The un-overlapped regions are positioned such that the un-overlapped regions receive the light signals but the overlapping regions are positioned between the overlapped region and the light signals so that the overlapping regions receive the light signals before the light signals can be received by the overlapped regions.
摘要翻译：光学装置包括位于基座上的透光介质。透光介质至少部分地限定光信号行进的自由传播区域。反射光栅包括台阶反射表面，定位成使得穿过自由传播区域的光信号被反射表面接收。反射表面被配置为将光信号反射回自由传播区域，使得与不同波长相关联的光信号随着光信号穿过自由传播区域而分离。反射面的至少一部分各自包括重叠区域。另外，反射面的至少一部分各自包括重叠区域和非重叠区域。反射光栅被配置为使得光信号在反射之前朝向重叠区域和未重叠区域行进。未重叠区域被定位成使得未重叠区域接收光信号，但是重叠区域位于重叠区域和光信号之间，使得重叠区域在光信号可以被接收到光信号之前接收光信号重叠区域。

4. 发明申请

US20130094074A1 Gain medium providing laser and amplifier functionality to optical device 有权
公开(公告)号：US20130094074A1
公开(公告)日：2013-04-18
申请号：US13317340
申请日：2011-10-14
申请人： Mehdi Asghari , Dazeng Feng
发明人： Mehdi Asghari , Dazeng Feng
IPC分类号： H01S3/063
CPC分类号： H01S5/02252 , H01S5/0262 , H01S5/0265 , H01S5/1032 , H01S5/4012 , H01S5/4062 , H01S5/50
摘要： An optical device includes a gain medium on a substrate. The device also includes one or more laser cavities and an amplifier on the substrate. The one or more laser cavities each guides a light signal through a different region of the gain medium such that each of the light signals is amplified within the gain medium. The amplifier guides an amplified light signal through the gain medium such that the amplified light signal is amplified in the gain medium.

5. 发明授权

US08242432B2 System having light sensor with enhanced sensitivity including a multiplication layer for generating additional electrons 有权
标题翻译：具有增强灵敏度的光传感器的系统，包括用于产生附加电子的乘法层
公开(公告)号：US08242432B2
公开(公告)日：2012-08-14
申请号：US12589501
申请日：2009-10-23
申请人： Dazeng Feng , Mehdi Asghari
发明人： Dazeng Feng , Mehdi Asghari
IPC分类号： G01J1/04
CPC分类号： H01L31/1075 , G02B6/12004
摘要： The optical device includes a waveguide and a light sensor on a base. The light sensor includes a ridge extending from slab regions positioned on opposing sides of the ridge. The ridge includes a multiplication layer and an absorption layer. The absorption layer is positioned to receive at least a portion of the light signal from the waveguide. Additionally, the absorption layer generates a hole and electron pair in response to receiving a photon of the light signal. The multiplication layer is positioned to receive the electron generated in the absorption layer and to generate additional electrons in response to receiving the electron.
摘要翻译：光学装置包括在基底上的波导和光传感器。光传感器包括从位于脊的相对侧上的平板区延伸的脊。脊包括乘法层和吸收层。吸收层被定位成接收来自波导的光信号的至少一部分。此外，响应于接收光信号的光子，吸收层产生空穴和电子对。放置乘法层以接收在吸收层中产生的电子并响应于接收电子而产生额外的电子。

6. 发明申请

US20110286700A1 Extension of steps in reflective optical gratings 有权
标题翻译：在反射光栅中延伸台阶
公开(公告)号：US20110286700A1
公开(公告)日：2011-11-24
申请号：US12800600
申请日：2010-05-18
申请人： Dazeng Feng , Wei Qian , Mehdi Asghari
发明人： Dazeng Feng , Wei Qian , Mehdi Asghari
IPC分类号： G02B6/34
CPC分类号： G02B5/1861 , G02B6/12007 , G02B6/29326 , G02B6/29328 , G02B2006/12107
摘要： An optical device includes a light-transmitting medium positioned on a base. The light-transmitting medium at least partially defines a free propagation region through which light signals travel. A reflective grating includes stepped reflecting surfaces positioned such that light signals that travel through the free propagation region are received by the reflecting surfaces. The reflecting surfaces are configured to reflect the light signal back into the free propagation region such that the light signals associated with different wavelengths separate as the light signals travel through the free propagation region. At least a portion of the reflecting surfaces each includes an overlapping region. Additionally, at least a portion of the reflecting surfaces each includes an overlapped region and un un-overlapped region. The reflecting grating is configured such that the light signals travel toward the overlapped regions and the un-overlapped regions before being reflected. The un-overlapped regions are positioned such that the un-overlapped regions receive the light signals but the overlapping regions are positioned between the overlapped region and the light signals so that the overlapping regions receive the light signals before the light signals can be received by the overlapped regions.
摘要翻译：光学装置包括位于基座上的透光介质。透光介质至少部分地限定光信号行进的自由传播区域。反射光栅包括台阶反射表面，定位成使得穿过自由传播区域的光信号被反射表面接收。反射表面被配置为将光信号反射回自由传播区域，使得与不同波长相关联的光信号随着光信号穿过自由传播区域而分离。反射面的至少一部分各自包括重叠区域。另外，反射面的至少一部分各自包括重叠区域和非重叠区域。反射光栅被配置为使得光信号在反射之前朝向重叠区域和未重叠区域行进。未重叠区域被定位成使得未重叠区域接收光信号，但是重叠区域位于重叠区域和光信号之间，使得重叠区域在光信号可以被接收到光信号之前接收光信号重叠区域。

7. 发明授权

US08053790B2 Optical device having light sensor employing horizontal electrical field 有权
标题翻译：具有采用水平电场的光传感器的光学装置
公开(公告)号：US08053790B2
公开(公告)日：2011-11-08
申请号：US12380016
申请日：2009-02-19
申请人： Dazeng Feng , Po Dong , Mehdi Asghari , Ning-Ning Feng
发明人： Dazeng Feng , Po Dong , Mehdi Asghari , Ning-Ning Feng
IPC分类号： H01L21/00
CPC分类号： G02B6/12004 , H01L31/03529 , H01L31/105 , H01L31/1804 , Y02E10/547 , Y02P70/521
摘要： The optical device includes a waveguide and a light sensor on a base. The light sensor includes a light-absorbing medium configured to receive a light signal from the waveguide. The light sensor also includes field sources for generating an electrical field in the light-absorbing medium. The field sources are configured so the electrical field is substantially parallel to the base.
摘要翻译：光学装置包括在基底上的波导和光传感器。光传感器包括被配置为从波导接收光信号的光吸收介质。光传感器还包括用于在光吸收介质中产生电场的场源。场源被配置为使得电场基本上平行于基极。

8. 发明申请

US20110095167A1 System having light sensor with enhanced sensitivity 有权
标题翻译：具有灵敏度增强的光传感器的系统
公开(公告)号：US20110095167A1
公开(公告)日：2011-04-28
申请号：US12589501
申请日：2009-10-23
申请人： Dazeng Feng , Mehdi Asghari
发明人： Dazeng Feng , Mehdi Asghari
IPC分类号： H01J40/14
CPC分类号： H01L31/1075 , G02B6/12004
摘要： The optical device includes a waveguide and a light sensor on a base. The light sensor includes a ridge extending from slab regions positioned on opposing sides of the ridge. The ridge includes a multiplication layer and an absorption layer. The absorption layer is positioned to receive at least a portion of the light signal from the waveguide. Additionally, the absorption layer generates a hole and electron pair in response to receiving a photon of the light signal. The multiplication layer is positioned to receive the electron generated in the absorption layer and to generate additional electrons in response to receiving the electron.
摘要翻译：光学装置包括在基底上的波导和光传感器。光传感器包括从位于脊的相对侧上的平板区延伸的脊。脊包括乘法层和吸收层。吸收层被定位成接收来自波导的光信号的至少一部分。此外，响应于接收光信号的光子，吸收层产生空穴和电子对。放置乘法层以接收在吸收层中产生的电子并响应于接收电子而产生额外的电子。

9. 发明申请

US20100207223A1 Optical device having light sensor employing horizontal electrical field 有权
标题翻译：具有采用水平电场的光传感器的光学装置
公开(公告)号：US20100207223A1
公开(公告)日：2010-08-19
申请号：US12380016
申请日：2009-02-19
申请人： Dazeng Feng , Po Dong , Mehdi Asghari , Ning-Ning Feng
发明人： Dazeng Feng , Po Dong , Mehdi Asghari , Ning-Ning Feng
IPC分类号： H01L31/0232
CPC分类号： G02B6/12004 , H01L31/03529 , H01L31/105 , H01L31/1804 , Y02E10/547 , Y02P70/521
摘要： The optical device includes a waveguide and a light sensor on a base. The light sensor includes a light-absorbing medium configured to receive a light signal from the waveguide. The light sensor also includes field sources for generating an electrical field in the light-absorbing medium. The field sources are configured so the electrical field is substantially parallel to the base.
摘要翻译：光学装置包括在基底上的波导和光传感器。光传感器包括被配置为从波导接收光信号的光吸收介质。光传感器还包括用于在光吸收介质中产生电场的场源。场源被配置为使得电场基本上平行于基极。

10. 发明授权

US07394948B1 High speed optical phase modulator 有权
公开(公告)号：US07394948B1
公开(公告)日：2008-07-01
申请号：US11146898
申请日：2005-06-07
申请人： Dawei Zheng , Dazeng Feng , Anthony Kewitsch , George Rakuljic
发明人： Dawei Zheng , Dazeng Feng , Anthony Kewitsch , George Rakuljic
IPC分类号： G02F1/035 , G02B6/26 , G02B6/42
CPC分类号： G02B6/132 , G02B6/136 , G02F1/0123 , G02F1/2255 , G02F1/2257
摘要： An optical device includes a phase modulator having a waveguide on a substrate. The phase modulator also includes an n-type region having a proximity to a p-type region that causes formation of a depletion region when a bias is not applied to the modulator. The depletion region is at least partially positioned in the light signal carrying region of the waveguide. The phase modulator is tuned by applying a reverse bias to the phase modulator. The reverse bias changes the size of the depletion region.

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