公开(公告)号：US09618664B2

公开(公告)日：2017-04-11

申请号：US14687882

申请日：2015-04-15

Applicant: Finisar Corporation

Inventor： Thomas W. Mossberg ,  Christoph M. Greiner ,  Dmitri Iazikov

IPC: G02B1/10 ,  G02B5/18

CPC classification number: G02B5/1866 ,  G02B5/1861 ,  G02B5/1871

Abstract: An optical element (transmissive or reflective) includes a transmissive layer comprising two different optical media arranged among discrete volumes arranged along the layer. The discrete volumes are arranged to approximate a desired phase function (typically modulo 2π) and are smaller than an operational wavelength in order to provide a range of phase delays needed to adequately approximate the desired phase function.

公开(公告)号：US20150309220A1

公开(公告)日：2015-10-29

申请号：US14698789

申请日：2015-04-28

Applicant: Finisar Corporation

Inventor： Christoph M. Greiner ,  Thomas W. Mossberg ,  Dmitri Iazikov

IPC: G02B5/18

CPC classification number: G02B5/1871

Abstract: A diffraction grating comprises a substrate (with index nsub) with a surface facing an optical medium (with index nmed

Abstract translation: 衍射光栅包括具有面向光学介质（索引nmed

公开(公告)号：US11378724B2

公开(公告)日：2022-07-05

申请号：US16525574

申请日：2019-07-30

Applicant: Finisar Corporation

Inventor： Thomas W. Mossberg ,  Jianji Yang ,  Dmitri Iazikov ,  Christoph M. Greiner

IPC: G02B5/18 ,  G02B27/48

Abstract: An incident optical beam illuminates a subset of contiguous array of diffraction gratings on a substrate and produces one or more diffracted output beams. The grating array can be arranged so that (i) multiple incident beams result in a contiguous composite solid angle of far-field illumination, (ii) multiple output beams arising from any one incident beam do not overlap in the far field, or (iii) both. The gratings of the array can be arranged to produce a desired far-field illumination intensity profile. The grating array can be arranged so as to suppress or eliminate laser speckle arising from the output beams.

公开(公告)号：US10823889B2

公开(公告)日：2020-11-03

申请号：US16449472

申请日：2019-06-24

Applicant: Finisar Corporation

Inventor： Thomas W. Mossberg ,  Christoph M. Greiner ,  Dmitri Iazikov

IPC: G02B5/18

Abstract: An optical element (transmissive or reflective) includes a transmissive layer comprising two different optical media arranged among discrete volumes arranged along the layer. The discrete volumes are arranged to approximate a desired phase function (typically modulo 2π) and are smaller than an operational wavelength in order to provide a range of phase delays needed to adequately approximate the desired phase function.

公开(公告)号：US10823365B2

公开(公告)日：2020-11-03

申请号：US16719098

申请日：2019-12-18

Applicant: Finisar Corporation

Inventor： Timothy S. Gray ,  Christoph M. Greiner ,  Justin M. Hannigan ,  Dmitri Iazikov ,  Charles B. Roxlo ,  Jianji Yang

IPC: F21V3/00 ,  G02B5/02 ,  F21V5/00 ,  F21Y105/10 ,  F21Y115/30

Abstract: Input optical signals propagate toward first optical diffuser, resulting in first-forward-directed optical signals that propagate toward a second optical diffuser, in turn resulting in second forward-directed optical signals. The second forward-directed optical signals collectively form the optical output of an illumination source that appears to emanate from an enlarged extended source and exhibits reduced speckle. The illumination source can include multiple laser sources formed on or attached to the first optical diffuser.

公开(公告)号：US20170261694A1

公开(公告)日：2017-09-14

申请号：US15454585

申请日：2017-03-09

Applicant: Finisar Corporation

Inventor： Xiaojie Xu ,  Thomas W. Mossberg ,  Tengda Du ,  Christoph M. Greiner ,  Dmitri Iazikov

IPC: G02B6/34 ,  G02B6/293 ,  G02B6/30

CPC classification number: G02B6/34 ,  G02B6/29307 ,  G02B6/29308 ,  G02B6/29311 ,  G02B6/30 ,  G02B2006/12107

Abstract: An optical assembly includes a first grating device configured to: receive a light beam that includes an optical signal with a particular wavelength from a fiber; and change a propagation direction of the optical signal according to the particular wavelength of the optical signal. The optical assembly also includes a second grating device configured to: receive the optical signal outputted from the first grating device; change the propagation direction of the optical signal according to the particular wavelength of the optical signal; and direct the optical signal onto a grating coupler. The first grating device and the second grating device are configured to satisfy a plurality of configuration constraints.

公开(公告)号：US09618708B2

公开(公告)日：2017-04-11

申请号：US14541072

申请日：2014-11-13

Applicant: Finisar Corporation

Inventor： Christoph M. Greiner ,  Thomas W. Mossberg ,  Dmitri Iazikov

IPC: H04B10/00 ,  G02B6/42 ,  G02B6/293

CPC classification number: G02B6/4215 ,  G02B6/29367 ,  G02B6/2938

Abstract: A first transmissive diffraction grating includes a multiplexed transmission region; a second diffraction grating includes multiple demultiplexed transmission regions that are spatially displaced from one another and characterized by average corresponding grating-normal vector direction, grating wavevector magnitude, and grating wavevector direction. The demultiplexed transmission regions differ with respect to at least one of those parameters. The gratings are arranged such that each one of multiple optical signals at corresponding different wavelengths co-propagating to the multiplexed transmission region along a multiplexed beam path would: (i) be transmissively, dispersively diffracted by the first diffractive optical element; (ii) propagate directly, without any intervening reflection, between the multiplexed transmission region and a corresponding one of the demultiplexed transmission regions; (iii) be transmissively, dispersively diffracted by the second diffractive optical element; and (iv) propagate from the corresponding demultiplexed transmission region along a corresponding one of multiple demultiplexed beam paths.

公开(公告)号：US20150180584A1

公开(公告)日：2015-06-25

申请号：US14578420

申请日：2014-12-20

Applicant: Finisar Corporation

Inventor： Thomas W. Mossberg ,  Christoph M. Greiner ,  Dmitri Iazikov

IPC: H04B10/572 ,  H04J14/02

CPC classification number: G02B6/29307 ,  G02B6/29311 ,  G02B6/2938 ,  H04J14/02

Abstract: Transmissive diffraction grating(s), reflector(s), and multiple optical sources/receivers are arranged such that each one of multiple optical signals at corresponding different wavelengths co-propagating along a multiplexed beam path would: (i) be transmissively, dispersively diffracted at a multiplexed transmission region of a grating; (ii) propagate between the multiplexed transmission region and multiple demultiplexed transmission regions of a grating undergoing reflection(s) from the reflector(s); (iii) be transmissively, dispersively diffracted at the demultiplexed transmission regions; and (iv) propagate between the demultiplexed transmission regions and the sources/receivers along multiple demultiplexed beam paths.

Abstract translation: 透射衍射光栅，反射器和多个光源/接收器被布置成使得沿着多路复用光束路径共同传播的对应不同波长的多个光信号中的每个光信号将：（i）透射，分散衍射 在光栅的多路传输区域; （ii）在复用的传输区域和经过来自反射器的反射的光栅的多个解复用的传输区域之间传播; （iii）在解复用的透射区域上透射散射衍射; 和（iv）沿着多路复用光束路径在解复用的传输区域和源/接收机之间传播。

公开(公告)号：US20150132003A1

公开(公告)日：2015-05-14

申请号：US14541072

申请日：2014-11-13

Applicant: Finisar Corporation

Inventor： Christoph M. Greiner ,  Thomas W. Mossberg ,  Dmitri Iazikov

IPC: H04B10/50 ,  H04J14/02

CPC classification number: G02B6/4215 ,  G02B6/29367 ,  G02B6/2938

Abstract: A first transmissive diffraction grating includes a multiplexed transmission region; a second diffraction grating includes multiple demultiplexed transmission regions that are spatially displaced from one another and characterized by average corresponding grating-normal vector direction, grating wavevector magnitude, and grating wavevector direction. The demultiplexed transmission regions differ with respect to at least one of those parameters. The gratings are arranged such that each one of multiple optical signals at corresponding different wavelengths co-propagating to the multiplexed transmission region along a multiplexed beam path would: (i) be transmissively, dispersively diffracted by the first diffractive optical element; (ii) propagate directly, without any intervening reflection, between the multiplexed transmission region and a corresponding one of the demultiplexed transmission regions; (iii) be transmissively, dispersively diffracted by the second diffractive optical element; and (iv) propagate from the corresponding demultiplexed transmission region along a corresponding one of multiple demultiplexed beam paths.

Abstract translation: 第一透射衍射光栅包括多路传输区域; 第二衍射光栅包括彼此空间位移的多个解复用的透射区域，其特征在于平均对应的光栅法线矢量方向，光栅波矢量幅度和光栅波矢方向。 解复用的传输区域相对于这些参数中的至少一个而不同。 光栅布置成使得沿着多路复用光束路径共同传播到复用传输区域的相应不同波长的多个光信号中的每一个将：（i）由第一衍射光学元件透射地，分散衍射; （ii）在复用的传输区域和解复用的传输区域中的对应的一个之间直接传播而没有任何中介反射; （iii）被第二衍射光学元件透射地，分散地衍射; 以及（iv）沿着多个解复用的光束路径中的对应的一个从相应的解复用的传输区域传播。