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1.发明授权公开(公告)号：US10830929B2
公开(公告)日：2020-11-10
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
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.
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公开(公告)号：US10459169B2
公开(公告)日：2019-10-29
申请号：US16365592
申请日：2019-03-26
Applicant: FINISAR CORPORATION
Inventor： Xiaojie Xu , Thomas W. Mossberg , Tengda Du , Christoph M. Greiner , Dmitri Iazikov
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.
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公开(公告)号：US20160306167A1
公开(公告)日：2016-10-20
申请号：US14687882
申请日：2015-04-15
Applicant: Finisar Corporation
Inventor： Thomas W. Mossberg , Christoph M. Greiner , Dmitri Iazikov
IPC: G02B26/06
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.
Abstract translation: 光学元件（透射或反射）包括透射层，其包括布置在沿着层布置的离散体积中的两个不同的光学介质。 离散体积被布置为近似期望的相位函数（通常为模2π）并且小于工作波长，以便提供足以接近所需相位函数所需的相位延迟范围。
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公开(公告)号：US11487053B2
公开(公告)日：2022-11-01
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.
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公开(公告)号：US10802184B2
公开(公告)日：2020-10-13
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
Abstract: A diffraction grating comprises a substrate (with index nsub) with a surface facing an optical medium (with index nmed
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Patent Agency Ranking
6.发明授权公开(公告)号：US10539723B2
公开(公告)日：2020-01-21
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 , C23F1/02 , H01J37/305
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.
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公开(公告)号：US20190120999A1
公开(公告)日：2019-04-25
申请号：US16155902
申请日：2018-10-10
Applicant: Finisar Corporation
Inventor： Dmitri Iazikov , Thomas W. Mossberg , Christoph M. Greiner , David S. Alavi
Abstract: An optical element includes a transmissive layer arranged on a substrate and made up of discrete volumes of first and second optical media. The layer is between the substrate and another optical medium. The volumes are arranged so that, averaged over a wavelength's distance of an incident optical signal, the effective reflectivities of the two surfaces of the transmissive layer and the effective double-pass phase delay through the transmissive layer are substantially constant across the transmissive layer. The reflectivities and phase delay result in net power reflectivity that differs from that of the substrate in direct contact with the other optical medium. The transmissive layer can be arranged as an anti-reflection layer.
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公开(公告)号：US11686881B2
公开(公告)日：2023-06-27
申请号：US16155902
申请日：2018-10-10
Applicant: Finisar Corporation
Inventor： Dmitri Iazikov , Thomas W. Mossberg , Christoph M. Greiner , David S. Alavi
CPC classification number: G02B1/11 , G02B5/3083
Abstract: An optical element includes a transmissive layer arranged on a substrate and made up of discrete volumes of first and second optical media. The layer is between the substrate and another optical medium. The volumes are arranged so that, averaged over a wavelength's distance of an incident optical signal, the effective reflectivities of the two surfaces of the transmissive layer and the effective double-pass phase delay through the transmissive layer are substantially constant across the transmissive layer. The reflectivities and phase delay result in net power reflectivity that differs from that of the substrate in direct contact with the other optical medium. The transmissive layer can be arranged as an anti-reflection layer.
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公开(公告)号：US11294107B2
公开(公告)日：2022-04-05
申请号：US16558033
申请日：2019-08-30
Applicant: Finisar Corporation
Inventor： Christoph M. Greiner , Jianji Yang , Dmitri Iazikov , Justin M. Hannigan
IPC: G02B5/02 , G02F1/1335 , F21K9/69 , H01L33/60 , F21K9/68 , F21Y115/10
Abstract: Incident optical signals propagate within a diffuser substrate and impinge upon an optical diffuser within the diffuser substrate or on its output surface. The optical diffuser redirects or transforms respective portions of each incident signal into corresponding forward- and backward-directed optical signals. The backward-directed signals are redirected or transformed into additional incident signals, and so on. The forward-directed optical signals collectively form the optical output of an illumination source that exhibits reduced speckle. The illumination source can include multiple laser sources formed on or attached to an input surface of the diffuser substrate.
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公开(公告)号：US20210026047A1
公开(公告)日：2021-01-28
申请号：US16558033
申请日：2019-08-30
Applicant: Finisar Corporation
Inventor： Christoph M. Greiner , Jianji Yang , Dmitri Iazikov , Justin M. Hannigan
IPC: G02B5/02 , G02F1/1335 , F21K9/69 , F21K9/68 , H01L33/60
Abstract: Incident optical signals propagate within a diffuser substrate and impinge upon an optical diffuser within the diffuser substrate or on its output surface. The optical diffuser redirects or transforms respective portions of each incident signal into corresponding forward- and backward-directed optical signals. The backward-directed signals are redirected or transformed into additional incident signals, and so on. The forward-directed optical signals collectively form the optical output of an illumination source that exhibits reduced speckle. The illumination source can include multiple laser sources formed on or attached to an input surface of the diffuser substrate.
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