公开(公告)号：US5710848A

公开(公告)日：1998-01-20

申请号：US577026

申请日：1995-12-22

Applicant: Patrick Dumais ,  Suzanne Lacroix ,  Francois Gonthier ,  Richard James Black ,  Jacques Bures

Inventor： Patrick Dumais ,  Suzanne Lacroix ,  Francois Gonthier ,  Richard James Black ,  Jacques Bures

IPC: G01B9/02 ,  G02B6/255 ,  G02B6/26 ,  G02B6/34 ,  G02F1/35 ,  H01S3/30

CPC classification number: G02F1/3517 ,  G02B6/2552 ,  G02F1/3136 ,  G02F2/004 ,  G02B6/29352 ,  G02B6/29355 ,  G02F1/3511

Abstract: A tapered optical fiber component is provided that has an optical fiber with a cladded region. An optical core passes through the cladded region. The cladded region has a tapered extended first region drawn down in diameter to form an effective area region that has a predetermined effective area. The tapered extended first region is formed to adiabatically concentrate an optical signal for propagation through the effective area region of reduced diameter. The power density of the optical signal propagating through the effective area region is increased as an inverse function of the effective area.

Abstract translation: 提供了一种具有包层区域的光纤的锥形光纤部件。 光芯通过包层区域。 包层区域具有向下拉直的锥形延伸的第一区域，以形成具有预定有效面积的有效区域区域。 锥形延伸的第一区域形成为绝热地集中光信号以传播通过减小直径的有效区域区域。 通过有效区域传播的光信号的功率密度作为有效面积的反函数增加。

公开(公告)号：US10921453B2

公开(公告)日：2021-02-16

申请号：US15992020

申请日：2018-05-29

Applicant: Patrick Dumais ,  Eric Bernier ,  Mohammad Mehdi Mansouri Rad

Inventor： Patrick Dumais ,  Eric Bernier ,  Mohammad Mehdi Mansouri Rad

IPC: G01S17/88 ,  G01S7/481 ,  G02B26/10 ,  G02F1/29

Abstract: A LIDAR includes multiple light sources and a Liquid Crystal on Silicon (LCOS) device for controllably redirecting beams from each of the multiple light sources. The same or a different LCOS device can be used to controllably redirect reflected light to each of several corresponding light detectors. The LCOS device can be adjusted on a slower time scale while the light sources can be sequentially activated on a faster time scale. The LCOS device provides for fine steering control of LIDAR beams. The use of multiple light sources and detectors allows for a higher LIDAR scan rate.

公开(公告)号：US09927575B2

公开(公告)日：2018-03-27

申请号：US15162765

申请日：2016-05-24

Applicant: Dominic John Goodwill ,  Patrick Dumais

Inventor： Dominic John Goodwill ,  Patrick Dumais

IPC: G02B6/27 ,  G02B6/32 ,  G02B6/34 ,  G02B6/30 ,  G02B6/126

CPC classification number: G02B6/2706 ,  G02B6/126 ,  G02B6/30 ,  G02B6/32 ,  G02B6/34 ,  G02B2006/12107 ,  G02B2006/12147

Abstract: An optical coupling apparatus for coupling an optical fiber to a photonic chip is described. The apparatus includes a collimating microlens for collimating light from the optical fiber; a polarization splitting beam displacer for separating the light collimated by the collimating microlens into orthogonally polarized X and Y component beams; at least one focusing microlens for directing the X and Y component beams separately onto the photonic chip; and first and second surface grating couplers (SGCs) orthogonally disposed on the photonic chip and configured for operation in a same polarization state, for coupling the X and Y component beams, respectively, to the photonic chip.

公开(公告)号：US20170329084A1

公开(公告)日：2017-11-16

申请号：US15154601

申请日：2016-05-13

Applicant: Dominic John Goodwill ,  Patrick Dumais

Inventor： Dominic John Goodwill ,  Patrick Dumais

IPC: G02B6/27 ,  G02B27/28

CPC classification number: G02B6/2793 ,  G02B6/272 ,  G02B6/2766 ,  G02B6/2773 ,  G02B6/2852 ,  G02B27/286

Abstract: An optical apparatus for compensating a measurement inaccuracy of polarization dependent loss (PDL) is described. The apparatus comprises a first polarization rotator splitter (PRS) for splitting an input beam into orthogonally polarized X and Y component beams and rotating one of the X and Y component beams to be in the same polarization as the other component beam; first and second circuits for processing the X and Y component beams respectively; a first polarization rotator combiner (PRC) for combining the X and Y component beams processed respectively by the first and second circuits into an output beam, one of the X and Y component beams being rotated to be orthogonally polarized with respect to the other component beam. The apparatus further comprises a first set of photodetectors for monitoring a first relative power between the X and Y component beams before the first and second circuits; a second set of photodetectors for monitoring a second relative power between the X and Y component beams processed respectively by the first and second circuits; and complementary PRSs and PRCs coupled between the first and second circuits and the second set of photo-detectors for compensating a measurement inaccuracy of PDL caused by the first PRS and PRC.

公开(公告)号：US07471866B2

公开(公告)日：2008-12-30

申请号：US11167229

申请日：2005-06-28

Applicant: Patrick Dumais ,  Chris Ledderhof ,  Claire Callender ,  Chantal Blanchetiere ,  Julian Noad ,  Glendon Lovell

Inventor： Patrick Dumais ,  Chris Ledderhof ,  Claire Callender ,  Chantal Blanchetiere ,  Julian Noad ,  Glendon Lovell

IPC: G02B6/10 ,  H01L21/00

CPC classification number: B82Y10/00 ,  B82Y20/00 ,  G01N21/0303 ,  G02B6/10 ,  G02B6/122 ,  G02B6/1225 ,  G02B6/13 ,  G02B2006/12169 ,  G02B2006/12173 ,  G02B2006/12176

Abstract: The invention provides a method for fabricating planar waveguiding structures with embedded microchannels. The method includes the step of depositing, over a planar template having at least one indented feature comprising a ridge of a first optical material and a narrow trench adjacent thereto, a second optical material, and the step of subsequent annealing thereof, so that an embedded hollow microchannel forms within the trench. The method provides planar structures wherein the ridge and the embedded microchannel cooperate to form an optical waveguiding structure having a waveguiding direction collinear with the embedded microchannel. Embodiments of the method for forming microfluidic devices integrating ridge waveguides with hollow microchannels having surface access points for fluid delivery, and for forming photonic crystals, are disclosed together with corresponding device embodiments.

Abstract translation: 本发明提供一种用于制造具有嵌入式微通道的平面波导结构的方法。 该方法包括沉积在具有至少一个凹陷特征的平面模板上的步骤，该至少一个凹陷特征包括第一光学材料的脊和与其相邻的窄沟槽，第二光学材料和随后的退火步骤， 在沟槽内形成空心微通道。 该方法提供平面结构，其中脊和嵌入式微通道协作以形成具有与嵌入式微通道共线的波导方向的光波导结构。 与对应的装置实施例一起公开了用于形成集成脊状波导与具有用于流体输送的表面接入点和用于形成光子晶体的中空微通道的微流体装置的方法的实施例。

公开(公告)号：US20170285373A1

公开(公告)日：2017-10-05

申请号：US15087449

申请日：2016-03-31

Applicant: Chunshu Zhang ,  Jia Jiang ,  Dominic John Goodwill ,  Patrick Dumais

Inventor： Chunshu Zhang ,  Jia Jiang ,  Dominic John Goodwill ,  Patrick Dumais

IPC: G02F1/01 ,  G02B6/293 ,  G02B6/27 ,  G02F1/225

CPC classification number: G02F1/0136 ,  G02B6/2773 ,  G02B6/29302 ,  G02B6/29344 ,  G02F1/0121 ,  G02F1/2257 ,  G02F2001/0142 ,  G02F2001/212

Abstract: A photonic platform based polarization controller providing a fixed target polarization is disclosed. The polarization controller has a polarization rotator splitter splitting the beam into first and second feeds corresponding to first and second orthogonal polarization components. A first Mach-Zehnder interferometer (MZI) stage provides a first phase delay between the first and second feeds based on a first control signal, and a first mixer mixes the first and second feeds to provide third and fourth feeds. A second MZI stage provides a second phase delay between the third and fourth feeds based on a second control signal, and a second mixer mixes the third and fourth feeds to provide fifth and sixth feeds. A third MZI stage provides a third phase delay between the fifth and sixth feeds based on a third control signal, and a third mixer mixes the fifth and sixth feeds to provide the fixed target polarization. An optical tap splits a portion of the beam.

公开(公告)号：US5479546A

公开(公告)日：1995-12-26

申请号：US245172

申请日：1994-05-16

Applicant: Patrick Dumais ,  Suzanne Lacroix ,  Francois Gonthier ,  Richard J. Black ,  Jacques Bures

Inventor： Patrick Dumais ,  Suzanne Lacroix ,  Francois Gonthier ,  Richard J. Black ,  Jacques Bures

IPC: G01B9/02 ,  G02B6/255 ,  G02B6/26 ,  G02B6/34 ,  G02F1/35 ,  H01S3/30

CPC classification number: G02F1/3517 ,  G02B6/2552 ,  G02F1/3136 ,  G02F2/004 ,  G02B6/29352 ,  G02B6/29355 ,  G02F1/3511

Abstract: A tapered optical fiber component is provided that has an optical fiber with a cladded region. An optical core passes through the cladded region. The cladded region has a tapered extended first region drawn down in diameter to form an effective area region that has a predetermined effective area. The tapered extended first region is formed to adiabatically concentrate an optical signal for propagation through the effective area region of reduced diameter. The power density of the optical signal propagating through the effective area region is increased as an inverse function of the effective area.

Abstract translation: 提供了一种具有包层区域的光纤的锥形光纤部件。 光芯通过包层区域。 包层区域具有向下拉直的锥形延伸的第一区域，以形成具有预定有效面积的有效区域区域。 锥形延伸的第一区域形成为绝热地集中光信号以传播通过减小直径的有效区域区域。 通过有效区域传播的光信号的功率密度作为有效面积的反函数增加。