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公开(公告)号：US09893487B2
公开(公告)日：2018-02-13
申请号：US15018575
申请日：2016-02-08
Applicant: RANOVUS INC.
Inventor： Bin Cao , Dylan Logan , Douglas J. S. Beckett , Rong Chen , Andrew Peter Knights
CPC classification number: H01S3/1028 , G02F1/011 , G02F1/0121 , G02F1/0147 , G02F2203/15 , G02F2203/21 , H01S3/083
Abstract: A device and method for tuning a ring resonator using self-heating stabilization is provided. A light source is controlled to produce an optical signal, input to an optical ring resonator, at a power where self-heating shifts a resonance wavelength of the optical ring resonator by at least 10 picometers, the self-heating comprising absorption in the optical ring resonator of optical power from a received optical signal. Prior to using the optical ring resonator at least one of modulate and filter the optical signal at the optical ring resonator, a heater of the optical ring resonator is controlled to an operating temperature at which the resonance wavelength of the optical ring resonator is greater than a respective wavelength of the optical signal.
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公开(公告)号：US10236657B2
公开(公告)日：2019-03-19
申请号：US15892562
申请日：2018-02-09
Applicant: RANOVUS INC.
Inventor： Bin Cao , Dylan Logan , Douglas J. S. Beckett , Rong Chen , Andrew Peter Knights
Abstract: A device and method for tuning a ring resonator using self-heating stabilization is provided. A light source is controlled to produce an optical signal, input to an optical ring resonator, at a power where self-heating shifts a resonance wavelength of the optical ring resonator by at least 10 picometers, the self-heating comprising absorption in the optical ring resonator of optical power from a received optical signal. Prior to using the optical ring resonator at least one of modulate and filter the optical signal at the optical ring resonator, a heater of the optical ring resonator is controlled to an operating temperature at which the resonance wavelength of the optical ring resonator is greater than a respective wavelength of the optical signal.
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3.发明授权公开(公告)号：US10107960B2
公开(公告)日：2018-10-23
申请号：US15699324
申请日：2017-09-08
Applicant: RANOVUS INC.
Inventor： Ryan Murray Hickey , Christopher James Brooks , Dylan Logan , Andrew Peter Knights
Abstract: A device that includes an optical coupler with a waveguide and waveguide index matched materials at an edge of a substrate, and a method of forming the device, is provided herein. The device comprises: a substrate having an edge, and an opening formed therein adjacent the edge; a layer of insulator on the substrate, which forms a bridge across the opening at the edge; a waveguide on the layer of insulator, the waveguide comprising a constant-width region and a tapered region terminating at the edge in a region of the opening; a first layer of optical epoxy in the opening, the optical epoxy indexed matched to the layer of insulator; and, a second layer of the optical epoxy on the tapered region, such that the optical epoxy optically contains an optical signal leaking from the waveguide in the tapered region.
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公开(公告)号：US09946027B2
公开(公告)日：2018-04-17
申请号：US15066653
申请日：2016-03-10
Applicant: RANOVUS INC.
Inventor： Andrew Peter Knights
CPC classification number: G02B6/29395 , G02B6/12007 , G02B6/29338 , G02F1/0121 , G02F1/025
Abstract: A device and method for post-fabrication trimming of an optical ring resonator using a dopant-based heater is provided. An optical ring resonator at the device can be heated using heaters in an optical slab from which the optical ring resonator extends, the heater including a non-uniform doping profile. A controller determines an initial resonance frequency and a target resonance frequency of the optical ring resonator. The controller applies predetermined electrical parameters to the heater using electrical connections to shift a resonance frequency of the optical ring resonator from the initial resonance frequency to the target resonance frequency by causing the dopant in the heater to migrate.
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