公开(公告)号：US20190339468A1

公开(公告)日：2019-11-07

申请号：US15973261

申请日：2018-05-07

申请人： Peter W. Evans ,  Fred A. Kish, JR. ,  Vikrant Lal ,  Jacco Pleumeekers ,  Timothy Butrie ,  David G. Coult ,  John W. Osenbach ,  Jie Tang ,  Jiaming Zhang

发明人： Peter W. Evans ,  Fred A. Kish, JR. ,  Vikrant Lal ,  Jacco Pleumeekers ,  Timothy Butrie ,  David G. Coult ,  John W. Osenbach ,  Jie Tang ,  Jiaming Zhang

IPC分类号： G02B6/43 ,  H04J14/06 ,  H04B10/61 ,  G02B6/42

摘要： Consistent with the present disclosure, one or more spare Widely Tunable Lasers (WTLs) are integrated on a PIC. In the event that a channel, including, for example, a laser, a modulator and a semiconductor optical amplifier in a transmitter or Tx PIC, or a laser, optical hybrid, and photodiodes, for example, in a receiver PIC (Rx PIC), includes one or more defective devices, a spare channel is selected that includes a widely tunable laser (WTL) which may be tuned to the wavelength associated with any of the channels on the PIC. Accordingly, the spare channel replaces the defective channel or the lowest performing channel and outputs modulated optical signals at the wavelength associated with the defective channel. Thus, even though a defective channel may be present, a die consistent with the present disclosure may still output or receive the desired channels because the spare channel replaces the defective channel. As a result, yields and minimum performance may improve compared to PICs that do not have a spare channel and manufacturing costs may be reduced. Alternatively, connections, such as fiber connections, may be made only to the operation or best performing channels.

公开(公告)号：US20170163001A1

公开(公告)日：2017-06-08

申请号：US15237636

申请日：2016-08-16

申请人： Peter W. Evans ,  Fred A. Kish ,  Vikrant Lal ,  Scott Corzine ,  Mingzhi Lu

发明人： Peter W. Evans ,  Fred A. Kish ,  Vikrant Lal ,  Scott Corzine ,  Mingzhi Lu

IPC分类号： H01S3/13 ,  H01S3/16 ,  H04B10/572 ,  G02B6/12 ,  G02F1/225 ,  H04B10/50 ,  H01S3/02 ,  H01S3/23

CPC分类号： H04B10/572 ,  G02B6/12004 ,  G02F1/2257 ,  G02F2001/212 ,  H01S3/107 ,  H01S5/06256 ,  H01S5/101 ,  H01S5/142 ,  H01S5/22 ,  H01S5/4012

摘要： Consistent with the present disclosure, a compact laser with extended tunability (CLET) is provided that includes multiple segments or sections, at least one of which is curved, bent or non-collinear with other segments, so that the CLET has a compact form factor either as a singular laser or when integrated with other devices. The term CLET, as used herein, refers to any of the laser configurations disclosed herein having mirrors and a bent, angled or curved part, portion or section between such mirrors. If bent, the bent portion is preferably oriented at an angle of at least 30 degrees relative to other portions of the CLET. Alternatively, the curve or bend portion may be distributed over different sections of the CLET over a series of arcs, for example. The waveguide extending between the mirrors is continuous, such that light propagating along the waveguide is not divided or split. The waveguide also constitutes a continuous waveguide path.

公开(公告)号：US08269297B2

公开(公告)日：2012-09-18

申请号：US12646558

申请日：2009-12-23

申请人： Radhakrishnan L. Nagarajan ,  Andrew G. Dentai ,  Scott Corzine ,  Steven Nguyen ,  Vikrant Lal ,  Jacco L. Pleumeekers ,  Peter W. Evans

发明人： Radhakrishnan L. Nagarajan ,  Andrew G. Dentai ,  Scott Corzine ,  Steven Nguyen ,  Vikrant Lal ,  Jacco L. Pleumeekers ,  Peter W. Evans

IPC分类号： H01L31/0232

CPC分类号： H01L31/105 ,  G02B6/12004 ,  G02B6/12007 ,  G02B6/2813 ,  G02B6/42 ,  H01L31/02019

摘要： Consistent with the present disclosure, a current blocking layer is provided between output waveguides carrying light to be sensed by the photodiodes in a balanced photodetector, and the photodiodes themselves. Preferably, the photodiodes are provided above the waveguides and sense light through evanescently coupling with the waveguides. In addition, the current blocking layer may include alternating p and n-type conductivity layers, such that, between adjacent ones of such layers, a reverse biased pn-junction is formed. The pn-junctions, therefore, limit the amount of current flowing from one photodiode of the balanced detector to the other, thereby improving performance.

摘要翻译： 与本公开一致，在平衡光电检测器中的由光电二极管传送的光的输出波导之间提供电流阻挡层，以及光电二极管本身。 优选地，光电二极管设置在波导上方并且通过与波导衰减耦合来感测光。 此外，电流阻挡层可以包括交替的p型和n型导电层，使得在相邻的这些层之间形成反向偏置的pn结。 因此，pn结限制了从平衡检测器的一个光电二极管流到另一个的电流量，从而提高性能。

公开(公告)号：US20170201070A1

公开(公告)日：2017-07-13

申请号：US15141668

申请日：2016-04-28

申请人： Peter W. Evans ,  Fred A. Kish ,  Vikrant Lal ,  Scott Corzine ,  Mingzhi Lu

发明人： Peter W. Evans ,  Fred A. Kish ,  Vikrant Lal ,  Scott Corzine ,  Mingzhi Lu

IPC分类号： H01S5/22 ,  H01S5/068 ,  H04B10/50 ,  H01S5/30

CPC分类号： H01S5/22 ,  H01S5/021 ,  H01S5/02248 ,  H01S5/0264 ,  H01S5/0265 ,  H01S5/06256 ,  H01S5/0683 ,  H01S5/101 ,  H01S5/3235 ,  H01S5/4025 ,  H04B10/503

摘要： Consistent with the present disclosure, a compact laser with extended tunability (CLET) is provided that includes multiple segments or sections, at least one of which is curved, bent or non-collinear with other segments, so that the CLET has a compact form factor either as a singular laser or when integrated with other devices. The term CLET, as used herein, refers to any of the laser configurations disclosed herein having mirrors and a bent, angled or curved part, portion or section between such mirrors. If bent, the bent portion is preferably oriented at an angle of at least 30 degrees relative to other portions of the CLET. Alternatively, the curve or bend portion may be distributed over different sections of the CLET over a series of arcs, for example. The waveguide extending between the mirrors is continuous, such that light propagating along the waveguide is not divided or split. The waveguide also constitutes a continuous waveguide path.

公开(公告)号：US08494314B2

公开(公告)日：2013-07-23

申请号：US12830435

申请日：2010-07-05

申请人： Pavel V. Studenkov ,  Vikrant Lal ,  Scott Corzine

发明人： Pavel V. Studenkov ,  Vikrant Lal ,  Scott Corzine

IPC分类号： G02B6/00

CPC分类号： G02B6/105

摘要： The present invention provides a polarization converter, and a method for fabricating the same. The polarization converter includes a geometric shape which induces rotation of a polarization of an optical signal from a first polarization state to a second polarization state as the optical signal propagates along the polarization converter. The performance of the polarization converter is maintained in light of inconsistencies in fabrication processes resulting in improved manufacturability.

摘要翻译： 本发明提供一种偏振转换器及其制造方法。 偏振转换器包括当光信号沿着偏振转换器传播时引起光信号从第一偏振状态到第二偏振状态的偏振旋转的几何形状。 鉴于制造工艺不一致，维持了极化转换器的性能，从而提高了可制造性。

公开(公告)号：US20120002912A1

公开(公告)日：2012-01-05

申请号：US12830435

申请日：2010-07-05

申请人： Pavel V. Studenkov ,  Vikrant Lal ,  Scott Corzine

发明人： Pavel V. Studenkov ,  Vikrant Lal ,  Scott Corzine

IPC分类号： G02B6/27 ,  G02B6/136

CPC分类号： G02B6/105

摘要： The present invention provides a polarization converter, and a method for fabricating the same. The polarization converter includes a geometric shape which induces rotation of a polarization of an optical signal from a first polarization state to a second polarization state as the optical signal propagates along the polarization converter. The performance of the polarization converter is maintained in light of inconsistencies in fabrication processes resulting in improved manufacturability.

摘要翻译： 本发明提供一种偏振转换器及其制造方法。 偏振转换器包括当光信号沿着偏振转换器传播时引起光信号从第一偏振状态到第二偏振状态的偏振旋转的几何形状。 鉴于制造工艺不一致，维持了极化转换器的性能，从而提高了可制造性。

公开(公告)号：US08160405B2

公开(公告)日：2012-04-17

申请号：US12646340

申请日：2009-12-23

申请人： Radhakrishnan L. Nagarajan ,  Masaki Kato ,  Vikrant Lal

发明人： Radhakrishnan L. Nagarajan ,  Masaki Kato ,  Vikrant Lal

IPC分类号： G02B6/00 ,  G02B6/10

CPC分类号： G02B6/126 ,  G02B6/27 ,  G02B6/2706 ,  G02B6/2766

摘要： Consistent with the present disclosure, a non-adiabatic polarization rotator is provided that can rotate the polarization of an incoming over a relatively short length. Light is supplied to the polarization rotator via a polarizer, which insures that the optical input to the polarization polarization rotator has a desired polarization. Preferably, the polarization rotator has a structure that is readily implemented with semiconductor materials and can be fabricated with known processing techniques. In addition, the polarization rotator and polarizer may include similar materials and/or layers, such that both may be readily integrated on a common substrate, such as an indium phosphide (InP) substrate.

摘要翻译： 根据本公开，提供了一种非绝热的偏振旋转器，其可以使相对较短长度的进入的偏振旋转。 通过偏振器将光提供给偏振旋转器，这确保了偏振旋转器的光输入具有期望的偏振。 优选地，偏振旋转器具有易于用半导体材料实现的结构，并且可以用已知的处理技术制造。 此外，偏振旋转器和偏振器可以包括相似的材料和/或层，使得两者可以容易地集成在公共衬底上，例如磷化铟（InP）衬底。

公开(公告)号：US20110150384A1

公开(公告)日：2011-06-23

申请号：US12646340

申请日：2009-12-23

申请人： RADHAKRISHNAN L. NAGARAJAN ,  Masaki Kato ,  Vikrant Lal

发明人： RADHAKRISHNAN L. NAGARAJAN ,  Masaki Kato ,  Vikrant Lal

IPC分类号： G02B6/126

CPC分类号： G02B6/126 ,  G02B6/27 ,  G02B6/2706 ,  G02B6/2766

摘要： Consistent with the present disclosure, a non-adiabatic polarization rotator is provided that can rotate the polarization of an incoming over a relatively short length. Light is supplied to the polarization rotator via a polarizer, which insures that the optical input to the polarization polarization rotator has a desired polarization. Preferably, the polarization rotator has a structure that is readily implemented with semiconductor materials and can be fabricated with known processing techniques. In addition, the polarization rotator and polarizer may include similar materials and/or layers, such that both may be readily integrated on a common substrate, such as an indium phosphide (InP) substrate.

摘要翻译： 根据本公开，提供了一种非绝热的偏振旋转器，其可以使相对较短长度的进入的偏振旋转。 通过偏振器将光提供给偏振旋转器，这确保了偏振旋转器的光输入具有期望的偏振。 优选地，偏振旋转器具有易于用半导体材料实现的结构，并且可以用已知的处理技术制造。 此外，偏振旋转器和偏振器可以包括相似的材料和/或层，使得两者可以容易地集成在公共衬底上，例如磷化铟（InP）衬底。