公开(公告)号：US10386553B2

公开(公告)日：2019-08-20

申请号：US15442711

申请日：2017-02-27

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：US10241274B2

公开(公告)日：2019-03-26

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: G02B6/30 ,  G02B6/293 ,  G02B6/34 ,  G02B6/12

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：US09703042B2

公开(公告)日：2017-07-11

申请号：US15162509

申请日：2016-05-23

Applicant: Finisar Corporation

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

IPC: G02B6/293 ,  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.

公开(公告)号：US20170017038A1

公开(公告)日：2017-01-19

申请号：US15162509

申请日：2016-05-23

Applicant: Finisar Corporation

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

IPC: G02B6/293

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：US09348091B2

公开(公告)日：2016-05-24

申请号：US14578420

申请日：2014-12-20

Applicant: Finisar Corporation

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

IPC: H04J14/02 ,  G02B6/293

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：US20200271837A1

公开(公告)日：2020-08-27

申请号：US16802339

申请日：2020-02-26

Applicant: Finisar Corporation

Inventor： Christoph M. Greiner ,  Jianji Yang ,  Dmitri Iazikov

IPC: G02B5/18

Abstract: An optical element includes a substrate, an intermediate layer, a topmost layer, and a contiguous multitude of recessed and non-recessed areal regions. The intermediate layer is formed over a top surface of the substrate and has a refractive index nI. The topmost layer is formed directly on the intermediate layer and has a refractive index nT where nT≠nI. The intermediate and topmost layers are substantially transparent over an operational wavelength range that includes a design wavelength λ0. A subset of areal regions has a largest transverse dimension less than about λ0. Each non-recessed areal region includes corresponding portions of the intermediate and topmost layers. Each recessed areal region extends entirely through the topmost layer and at least partly through the intermediate layer. A fill medium fills the recessed areal regions. The areal regions are variously sized and distributed transversely across the optical element.

公开(公告)号：US20190377108A1

公开(公告)日：2019-12-12

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: A 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：US20190212479A1

公开(公告)日：2019-07-11

申请号：US16355803

申请日：2019-03-17

Applicant: Finisar Corporation

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

IPC: G02B5/08

CPC classification number: G02B5/0883 ,  C23F1/02 ,  G02B3/08 ,  G02B5/3083 ,  H01J37/3056

Abstract: An optical element includes a transmissive layer comprising a multitude of discrete volumes of first and second optical media arranged along the transmissive 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. Effecting at least partial reflow of one or both of the optical media can smooth the morphology of the transmissive layer so as to reduce unwanted diffraction or scattering.

公开(公告)号：US20180128948A1

公开(公告)日：2018-05-10

申请号：US15784702

申请日：2017-10-16

Applicant: Finisar Corporation

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

IPC: G02B5/08

CPC classification number: G02B5/0883 ,  C23F1/02 ,  G02B3/08 ,  G02B5/3083 ,  H01J37/3056

Abstract: A reflective optical element includes a reflective surface comprising a multitude of discrete recessed and non-recessed areas arranged along the reflective surface. The discrete areas 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. Effecting at least partial reflow of one or more optical media or reflective materials can smooth the morphology of the reflective surface so as to reduce unwanted diffraction or scattering.

公开(公告)号：US20170168202A1

公开(公告)日：2017-06-15

申请号：US15442711

申请日：2017-02-27

Applicant: Finisar Corporation

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

IPC: G02B5/18

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

Abstract: A 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.