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1.发明授权Method and apparatus to generate and monitor optical signals and control power levels thereof in a planar lightwave circuit 有权在平面光波电路中产生和监测光信号并控制其功率水平的方法和装置公开(公告)号：US07099360B2
公开(公告)日：2006-08-29
申请号：US10357630
申请日：2003-02-03
申请人： Achintya K. Bhowmik , Nagesh K. Vodrahalli , Gennady Farber , Hai-Feng Liu , Hamid Eslampour , Ut Tran , William B. Wong , Ruolin Li , Jesper Jayaswal-Arentoff
发明人： Achintya K. Bhowmik , Nagesh K. Vodrahalli , Gennady Farber , Hai-Feng Liu , Hamid Eslampour , Ut Tran , William B. Wong , Ruolin Li , Jesper Jayaswal-Arentoff
CPC分类号： H01S5/141 , H01L2224/48091 , H01L2224/73265 , H01S5/02248 , H01S5/0268 , H01S5/0683 , H01S5/4062 , H01S5/4087 , H01L2924/00014
摘要： An optical transmitter includes an external cavity laser array formed in a PLC, a trench-based detector array and an AWG. The external cavity laser is formed using an array of substantially similar laser gain blocks and an array of gratings formed in waveguides connected to the gain blocks. Each grating defines the output wavelength for its corresponding external cavity laser. Each detector of the detector array includes a coupler to cause a portion of a corresponding laser output signal of the laser array to propagate through a first sidewall of a trench and reflect off a second sidewall of the trench to a photodetector. In one embodiment, the photodetector outputs a signal indicative of the power level of the reflected signal, which a controller uses to control the laser array to equalize the power of the laser output signals.
摘要翻译： 光发射机包括形成在PLC中的外腔激光器阵列，基于沟槽的检测器阵列和AWG。 使用基本相似的激光增益块的阵列和形成在连接到增益块的波导中的光栅阵列来形成外腔激光器。 每个光栅定义其对应的外腔激光器的输出波长。 检测器阵列的每个检测器包括耦合器，以使激光器阵列的对应的激光输出信号的一部分传播通过沟槽的第一侧壁并将其从沟槽的第二侧壁反射到光电检测器。 在一个实施例中，光电检测器输出指示反射信号的功率电平的信号，控制器用于控制激光器阵列以均衡激光输出信号的功率。
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2.发明授权Method and apparatus to generate and monitor optical signals and control power levels thereof in a planar lightwave circuit 有权在平面光波电路中产生和监测光信号并控制其功率水平的方法和装置公开(公告)号：US08057108B2
公开(公告)日：2011-11-15
申请号：US12847117
申请日：2010-07-30
申请人： Achintya K. Bhowmik , Nagesh K. Vodrahalli , Gennady Farber , Hai-Feng Liu , Hamid Eslampour , Ut Tran , William B. Wong , Ruolin Li , Jesper Arentoft Jayaswal
发明人： Achintya K. Bhowmik , Nagesh K. Vodrahalli , Gennady Farber , Hai-Feng Liu , Hamid Eslampour , Ut Tran , William B. Wong , Ruolin Li , Jesper Arentoft Jayaswal
IPC分类号： G02B6/36
CPC分类号： H01S5/141 , H01L2224/48091 , H01L2224/73265 , H01S5/02248 , H01S5/0268 , H01S5/0683 , H01S5/4062 , H01S5/4087 , H01L2924/00014
摘要： Embodiments of an optical detection apparatus are disclosed which may include one or more of a waveguide, a trench formed in the waveguide, a reflective surface, and a photodetector. The waveguide may be formed in a semiconductor substrate to propagate an optical signal received at a first end of the waveguide. The trench may also be formed in the waveguide having a first sidewall and a second sidewall, the first and second sidewalls forming first and second angles with the waveguide's propagation direction. The second sidewall may include a reflective surface formed thereon. The photodetector may be configured to receive an optical signal propagated in the waveguide, through the first sidewall and reflected from the reflective surface on the second sidewall.
摘要翻译： 公开了一种光学检测装置的实施例，其可以包括波导，在波导中形成的沟槽，反射表面和光电检测器中的一个或多个。 波导可以形成在半导体衬底中，以传播在波导的第一端处接收的光信号。 沟槽也可以形成在具有第一侧壁和第二侧壁的波导中，第一和第二侧壁与波导的传播方向形成第一和第二角度。 第二侧壁可以包括形成在其上的反射表面。 光电检测器可以被配置为接收在波导中传播的光信号，通过第一侧壁并从第二侧壁上的反射表面反射。
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3.发明授权Method and apparatus to generate and monitor optical signals and control power levels thereof in a planar lightwave circuit 有权在平面光波电路中产生和监测光信号并控制其功率水平的方法和装置公开(公告)号：US07780360B2
公开(公告)日：2010-08-24
申请号：US12176758
申请日：2008-07-21
申请人： Achintya K. Bhowmik , Nagesh K. Vodrahalli , Gennady Farber , Hai-Feng Liu , Hamid Eslampour , Ut Tran , William B. Wong , Ruolin Li , Jesper Arentoft Jayaswal
发明人： Achintya K. Bhowmik , Nagesh K. Vodrahalli , Gennady Farber , Hai-Feng Liu , Hamid Eslampour , Ut Tran , William B. Wong , Ruolin Li , Jesper Arentoft Jayaswal
CPC分类号： H01S5/141 , H01L2224/48091 , H01L2224/73265 , H01S5/02248 , H01S5/0268 , H01S5/0683 , H01S5/4062 , H01S5/4087 , H01L2924/00014
摘要： Embodiments of an optical detection apparatus are disclosed which may include one or more of a waveguide, a trench formed in the waveguide, a reflective surface, and a photodetector. The waveguide may be formed in a semiconductor substrate to propagate an optical signal received at a first end of the waveguide. The trench may also be formed in the waveguide having a first sidewall and a second sidewall, the first and second sidewalls forming first and second angles with the waveguide's propagation direction. The second sidewall may include a reflective surface formed thereon. The photodetector may be configured to receive an optical signal propagated in the waveguide, through the first sidewall and reflected from the reflective surface on the second sidewall.
摘要翻译： 公开了一种光学检测装置的实施例，其可以包括波导，在波导中形成的沟槽，反射表面和光电检测器中的一个或多个。 波导可以形成在半导体衬底中，以传播在波导的第一端处接收的光信号。 沟槽也可以形成在具有第一侧壁和第二侧壁的波导中，第一和第二侧壁与波导的传播方向形成第一和第二角度。 第二侧壁可以包括形成在其上的反射表面。 光电检测器可以被配置为接收在波导中传播的光信号，通过第一侧壁并从第二侧壁上的反射表面反射。
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4.发明申请METHOD AND APPARATUS TO GENERATE AND MONITOR OPTICAL SIGNALS AND CONTROL POWER LEVELS THEREOF IN A PLANAR LIGHTWAVE CIRCUIT 有权用于生成和监视光信号的方法和装置，并控制其在平面照明电路中的功率水平公开(公告)号：US20080279236A1
公开(公告)日：2008-11-13
申请号：US12176758
申请日：2008-07-21
申请人： Achintya K. Bhowmik , Nagesh K. Vodrahalli , Gennady Farber , Hai-Feng Liu , Hamid Eslampour , Ut Tran , William B. Wong , Ruolin Li , Jesper Arentoft Jayaswal
发明人： Achintya K. Bhowmik , Nagesh K. Vodrahalli , Gennady Farber , Hai-Feng Liu , Hamid Eslampour , Ut Tran , William B. Wong , Ruolin Li , Jesper Arentoft Jayaswal
IPC分类号： H01S3/13
CPC分类号： H01S5/141 , H01L2224/48091 , H01L2224/73265 , H01S5/02248 , H01S5/0268 , H01S5/0683 , H01S5/4062 , H01S5/4087 , H01L2924/00014
摘要： Embodiments of an optical detection apparatus are disclosed which may include one or more of a waveguide, a trench formed in the waveguide, a reflective surface, and a photodetector. The waveguide may be formed in a semiconductor substrate to propagate an optical signal received at a first end of the waveguide. The trench may also be formed in the waveguide having a first sidewall and a second sidewall, the first and second sidewalls forming first and second angles with the waveguide's propagation direction. The second sidewall may include a reflective surface formed thereon. The photodetector may be configured to receive an optical signal propagated in the waveguide, through the first sidewall and reflected from the reflective surface on the second sidewall.
摘要翻译： 公开了一种光学检测装置的实施例，其可以包括波导，在波导中形成的沟槽，反射表面和光电检测器中的一个或多个。 波导可以形成在半导体衬底中，以传播在波导的第一端处接收的光信号。 沟槽也可以形成在具有第一侧壁和第二侧壁的波导中，第一和第二侧壁与波导的传播方向形成第一和第二角度。 第二侧壁可以包括形成在其上的反射表面。 光电检测器可以被配置为接收在波导中传播的光信号，通过第一侧壁并从第二侧壁上的反射表面反射。
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5.发明授权Method and apparatus to generate and monitor optical signals and control power levels thereof in a planar lightwave circuit 失效在平面光波电路中产生和监测光信号并控制其功率水平的方法和装置公开(公告)号：US07401986B2
公开(公告)日：2008-07-22
申请号：US11497954
申请日：2006-08-01
申请人： Achintya K. Bhowmik , Nagesh K. Vodrahalli , Gennady Farber , Hai-Feng Liu , Hamid Eslampour , Ut Tran , William B. Wong , Ruolin Li , Jesper Jayaswal-Arentoft
发明人： Achintya K. Bhowmik , Nagesh K. Vodrahalli , Gennady Farber , Hai-Feng Liu , Hamid Eslampour , Ut Tran , William B. Wong , Ruolin Li , Jesper Jayaswal-Arentoft
CPC分类号： H01S5/141 , H01L2224/48091 , H01L2224/73265 , H01S5/02248 , H01S5/0268 , H01S5/0683 , H01S5/4062 , H01S5/4087 , H01L2924/00014
摘要： Embodiments of an optical detection apparatus are disclosed which may include one or more of a waveguide, a trench formed in the waveguide, a reflective surface, and a photodetector. The waveguide may be formed in a semiconductor substrate to propagate an optical signal received at a first end of the waveguide. The trench may also be formed in the waveguide having a first sidewall and a second sidewall, the first and second sidewalls forming first and second angles with the waveguide's propagation direction. The second sidewall may include a reflective surface formed thereon. The photodetector may be configured to receive an optical signal propagated in the waveguide, through the first sidewall and reflected from the reflective surface on the second sidewall.
摘要翻译： 公开了一种光学检测装置的实施例，其可以包括波导，在波导中形成的沟槽，反射表面和光电检测器中的一个或多个。 波导可以形成在半导体衬底中，以传播在波导的第一端处接收的光信号。 沟槽也可以形成在具有第一侧壁和第二侧壁的波导中，第一和第二侧壁与波导的传播方向形成第一和第二角度。 第二侧壁可以包括形成在其上的反射表面。 光电检测器可以被配置为接收在波导中传播的光信号，通过第一侧壁并从第二侧壁上的反射表面反射。
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6.发明申请METHOD AND APPARATUS TO GENERATE AND MONITOR OPTICAL SIGNALS AND CONTROL POWER LEVELS THEREOF IN A PLANAR LIGHTWAVE CIRCUIT 有权用于生成和监视光信号的方法和装置，并控制其在平面照明电路中的功率水平公开(公告)号：US20100296773A1
公开(公告)日：2010-11-25
申请号：US12847117
申请日：2010-07-30
申请人： Achintya K. Bhowmik , Nagesh K. Vodrahalli , Gennady Farber , Hai-Feng Liu , Hamid Eslampour , Ut Tran , William B. Wong , Ruolin Lin , Jesper Arentoft Jayaswal
发明人： Achintya K. Bhowmik , Nagesh K. Vodrahalli , Gennady Farber , Hai-Feng Liu , Hamid Eslampour , Ut Tran , William B. Wong , Ruolin Lin , Jesper Arentoft Jayaswal
CPC分类号： H01S5/141 , H01L2224/48091 , H01L2224/73265 , H01S5/02248 , H01S5/0268 , H01S5/0683 , H01S5/4062 , H01S5/4087 , H01L2924/00014
摘要： Embodiments of an optical detection apparatus are disclosed which may include one or more of a waveguide, a trench formed in the waveguide, a reflective surface, and a photodetector. The waveguide may be formed in a semiconductor substrate to propagate an optical signal received at a first end of the waveguide. The trench may also be formed in the waveguide having a first sidewall and a second sidewall, the first and second sidewalls forming first and second angles with the waveguide's propagation direction. The second sidewall may include a reflective surface formed thereon. The photodetector may be configured to receive an optical signal propagated in the waveguide, through the first sidewall and reflected from the reflective surface on the second sidewall.
摘要翻译： 公开了一种光学检测装置的实施例，其可以包括波导，在波导中形成的沟槽，反射表面和光电检测器中的一个或多个。 波导可以形成在半导体衬底中，以传播在波导的第一端处接收的光信号。 沟槽也可以形成在具有第一侧壁和第二侧壁的波导中，第一和第二侧壁与波导的传播方向形成第一和第二角度。 第二侧壁可以包括形成在其上的反射表面。 光电检测器可以被配置为接收在波导中传播的光信号，通过第一侧壁并从第二侧壁上的反射表面反射。
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7.发明授权公开(公告)号：US07174060B2
公开(公告)日：2007-02-06
申请号：US11189543
申请日：2005-07-26
申请人： Nagesh K. Vodrahalli , Achintya K. Bhowmik , Connie C. Liu , Takaharu Fujiyama , Kenji Takahashi , Biswajit Sur
发明人： Nagesh K. Vodrahalli , Achintya K. Bhowmik , Connie C. Liu , Takaharu Fujiyama , Kenji Takahashi , Biswajit Sur
IPC分类号： G02B6/00
CPC分类号： G02B6/12011 , G02B6/12023 , G02B6/122 , G02B6/126
摘要： A method and apparatus that includes a first waveguide segment that differentially changes the amplitude of the light relative to a first polarization orientation, a thickness of oriented liquid crystal or other birefringent material sufficient to delay one polarization component one-half wavelength relative to another, and a second waveguide segment that also differentially changes the amplitude of the light based on the polarization orientation. Also, an apparatus that includes a thin polarization converter that includes a thin first substrate that is substantially transparent to a wavelength of light, and a birefringent material deposited on one or more surfaces of the first substrate and oriented such that the polarization converter forms a half-wavelength birefringent plate for the light. Also, an apparatus having a first substrate surface, a second substrate surface, and a liquid crystal material between the first and second substrate surfaces to form a polarization converter.
摘要翻译： 一种方法和装置，包括：第一波导段，其相对于第一偏振取向差异地改变光的幅度;取向液晶或其它双折射材料的厚度足以将一个偏振分量相对于另一个延迟一半波长;以及 还基于极化取向差分地改变光的振幅的第二波导段。 此外，一种包括薄偏振转换器的装置，其包括对于波长基本上是透明的薄的第一衬底，以及沉积在第一衬底的一个或多个表面上的双折射材料，并且使得偏振转换器形成一半 - 波长双折射板。 另外，在第一和第二基板表面之间具有第一基板表面，第二基板表面和液晶材料的装置，以形成偏振转换器。
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8.发明授权公开(公告)号：US06928200B2
公开(公告)日：2005-08-09
申请号：US10265873
申请日：2002-10-07
申请人： Nagesh K. Vodrahalli , Achintya K. Bhowmik , Connie C. Liu , Takaharu Fujiyama , Kenji Takahashi , Biswajit Sur
发明人： Nagesh K. Vodrahalli , Achintya K. Bhowmik , Connie C. Liu , Takaharu Fujiyama , Kenji Takahashi , Biswajit Sur
CPC分类号： G02B6/12011 , G02B6/12023 , G02B6/122 , G02B6/126
摘要： A method and apparatus that includes a first waveguide segment that differentially changes the amplitude of the light relative to a first polarization orientation, a thickness of oriented liquid crystal or other birefringent material sufficient to delay one polarization component one-half wavelength relative to another, and a second waveguide segment that also differentially changes the amplitude of the light based on the polarization orientation. Also, an apparatus that includes a thin polarization converter that includes a thin first substrate that is substantially transparent to a wavelength of light, and a birefringent material deposited on one or more surfaces of the first substrate and oriented such that the polarization converter forms a half-wavelength birefringent plate for the light. Also, an apparatus having a first substrate surface, a second substrate surface, and a liquid crystal material between the first and second substrate surfaces to form a polarization converter.
摘要翻译： 一种方法和装置，包括：第一波导段，其相对于第一偏振取向差异地改变光的幅度;取向液晶或其它双折射材料的厚度足以将一个偏振分量相对于另一个延迟一半波长;以及 还基于极化取向差分地改变光的振幅的第二波导段。 此外，一种包括薄偏振转换器的装置，其包括对于波长基本上是透明的薄的第一衬底，以及沉积在第一衬底的一个或多个表面上的双折射材料，并且使得偏振转换器形成一半 - 波长双折射板。 另外，在第一和第二基板表面之间具有第一基板表面，第二基板表面和液晶材料的装置，以形成偏振转换器。
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9.发明授权Crystal-core fiber mode converter for low-loss polarization-insensitive planar lightwave circuits 有权用于低损耗偏振不敏感平面光波电路的晶体光纤模式转换器公开(公告)号：US06879743B2
公开(公告)日：2005-04-12
申请号：US10028570
申请日：2001-12-19
CPC分类号： G02B6/12011 , G02B6/105 , G02B6/12023 , G02B6/126
摘要： A planar lightwave circuit comprises a first portion of a waveguide, a second portion of a waveguide, and a segment of crystal core fiber coupling the first portion to the second portion of the waveguide. The crystal core fiber helps to reduce the polarization sensitivity of the waveguide. In one embodiment, multiple crystal core fibers are used in a planar lightwave circuit having multiple waveguides, such as an array waveguide grating.
摘要翻译： 平面光波电路包括波导的第一部分，波导的第二部分和将第一部分耦合到波导的第二部分的晶体纤芯段。 晶体纤芯有助于降低波导的偏振灵敏度。 在一个实施例中，在具有多个波导的平面光波电路中使用多个晶体核心光纤，例如阵列波导光栅。
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10.发明授权公开(公告)号：US06778750B2
公开(公告)日：2004-08-17
申请号：US10185219
申请日：2002-06-26
IPC分类号： G02B610
CPC分类号： G02B6/12011 , G02B6/105 , G02B6/12007 , G02B6/12023 , G02B6/126 , G02B2006/12107 , G02B2006/12116
摘要： A planar lightwave circuit comprises a plurality of waveguides formed with a geometrical or refractive index properties that renders the planar lightwave circuit substantially polarization insensitive.
摘要翻译： 平面光波电路包括形成有几何或折射特性的多个波导，其使平面光波电路基本上偏振不敏感。
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