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公开(公告)号：US10088630B2
公开(公告)日：2018-10-02
申请号：US15559603
申请日：2016-03-17
申请人： UNIVERSITÉ LAVAL
发明人： Wei Shi
摘要： The optical device coupleable to a waveguide to receive an optical signal from the waveguide generally has at least two diffraction grating devices optically coupled to one another and having corresponding spectral responses, the spectral response of at least one of said diffraction grating devices being tunable to adjust an amount of overlapping between the spectral responses of the at least two diffraction grating devices.
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公开(公告)号：US11409140B2
公开(公告)日：2022-08-09
申请号：US16978785
申请日：2019-03-08
申请人： UNIVERSITÉ LAVAL
发明人： Wei Shi , Larochelle Sophie , Omid Jafari
IPC分类号： G02F1/025 , G02F1/01 , H04B10/548 , G02F1/015
摘要： There is described an optical phase modulator generally having a substrate; a waveguide mounted to the substrate and extending along a path of the substrate, the waveguide having a first series of phase shift units distributed along the waveguide, each phase shift unit having two Bragg gratings being spaced apart from one another along the path and a cavity between the two spaced-apart Bragg gratings; and a modulation circuit configured for driving a length of the series of phase shift units of the waveguide in accordance with a modulation signal thereby modulating a refractive index of the waveguide to induce a phase shift to an optical signal propagating along the waveguide.
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公开(公告)号：US10459168B2
公开(公告)日：2019-10-29
申请号：US16114590
申请日：2018-08-28
申请人： UNIVERSITÉ LAVAL
发明人： Wei Shi
摘要： The optical device coupleable to a waveguide to receive an optical signal from the waveguide generally has at least two optical grating devices optically coupled to one another and having corresponding spectral responses, the spectral response of at least one of said optical grating devices being tunable to adjust an amount of overlapping between the spectral responses of the at least two optical grating devices.
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