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公开(公告)号：US20190139950A1
公开(公告)日：2019-05-09
申请号：US16195774
申请日：2018-11-19
Applicant: ROCKLEY PHOTONICS LIMITED
Inventor： Guomin Yu , Amit Singh Nagra , Damiana Lerose , Hooman Abediasl , Pradeep Srinivasan , Joyce Kai See Poon , Zheng Yong , Haydn Frederick Jones
IPC: H01L25/16 , H04B10/524 , G02F1/017
Abstract: An optoelectronic device. The optoelectronic device operable to provide a PAM-N modulated output, the device comprising: M optical modulators, M being an integer greater than 1, the M optical modulators being arranged in a cascade, the device being configured to operate in N distinct transmittance states, as a PAM-N modulator, wherein, in each transmittance state of the N distinct transmittance states, each of the M optical modulators has applied to it a respective control voltage equal to one of: a first voltage or a second voltage. One or more of the modulators may include a substrate; a crystalline cladding layer, on top of the substrate; and an optically active region, above the crystalline cladding layer. The crystalline cladding layer may have a refractive index which is less than a refractive index of the optically active region.
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公开(公告)号：US20170155452A1
公开(公告)日：2017-06-01
申请号：US15430314
申请日：2017-02-10
Applicant: ROCKLEY PHOTONICS LIMITED
Inventor： Amit Singh Nagra , Hooman Abediasl , Joyce Kai See Poon , Zheng Yong
IPC: H04B10/54 , G02F1/01 , H04B10/524 , G02F1/025
CPC classification number: H04B10/541 , G02F1/0121 , G02F1/0147 , G02F1/015 , G02F1/025 , G02F2001/0157 , G02F2201/063 , G02F2201/16 , H04B10/524
Abstract: An optoelectronic device. The optoelectronic device operable to provide a PAM-N modulated output, the device comprising: M optical modulators, M being an integer greater than 1, the M optical modulators being arranged in a cascade, the device being configured to operate in N distinct transmittance states, as a PAM-N modulator, wherein, in each transmittance state of the N distinct transmittance states, each of the M optical modulators has applied to it a respective control voltage equal to one of: a first voltage or a second voltage.
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公开(公告)号：US11101256B2
公开(公告)日：2021-08-24
申请号：US16195774
申请日：2018-11-19
Applicant: ROCKLEY PHOTONICS LIMITED
Inventor： Guomin Yu , Amit Singh Nagra , Damiana Lerose , Hooman Abediasl , Pradeep Srinivasan , Joyce Kai See Poon , Zheng Yong , Haydn Frederick Jones
Abstract: An optoelectronic device. The optoelectronic device operable to provide a PAM-N modulated output, the device comprising: M optical modulators, M being an integer greater than 1, the M optical modulators being arranged in a cascade, the device being configured to operate in N distinct transmittance states, as a PAM-N modulator, wherein, in each transmittance state of the N distinct transmittance states, each of the M optical modulators has applied to it a respective control voltage equal to one of: a first voltage or a second voltage. One or more of the modulators may include a substrate; a crystalline cladding layer, on top of the substrate; and an optically active region, above the crystalline cladding layer. The crystalline cladding layer may have a refractive index which is less than a refractive index of the optically active region.
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公开(公告)号：US10135542B2
公开(公告)日：2018-11-20
申请号：US15430314
申请日：2017-02-10
Applicant: ROCKLEY PHOTONICS LIMITED
Inventor： Amit Singh Nagra , Hooman Abediasl , Joyce Kai See Poon , Zheng Yong
IPC: H04B10/54 , G02F1/025 , G02F1/01 , H04B10/524 , G02F1/015
Abstract: An optoelectronic device. The optoelectronic device operable to provide a PAM-N modulated output, the device comprising: M optical modulators, M being an integer greater than 1, the M optical modulators being arranged in a cascade, the device being configured to operate in N distinct transmittance states, as a PAM-N modulator, wherein, in each transmittance state of the N distinct transmittance states, each of the M optical modulators has applied to it a respective control voltage equal to one of: a first voltage or a second voltage.
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