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公开(公告)号:US12013601B2
公开(公告)日:2024-06-18
申请号:US17896995
申请日:2022-08-26
Applicant: HyperLight Corporation
Inventor: Prashanta Kharel , Mian Zhang , Christian Reimer
CPC classification number: G02F1/0356 , G02B6/125 , G02F1/2255 , G02B2006/12142 , G02F2201/127 , G02F2202/20
Abstract: A velocity mismatch between optical signals and microwave electrical signals in electro-optic devices, such as modulators, may be compensated by utilizing different lengths of bends in the optical waveguides as compared to the microwave electrodes to match the velocity of the microwave signal propagating along the coplanar waveguide to the velocity of the optical signal. To ensure the electrode bends do not affect the light in the optical waveguide bends, the electrode may have to be rerouted, e.g. above or below, the optical waveguide layer. To ensure that the pair of optical waveguides have the same optical length, a waveguide crossing may be used to cross the first waveguide through the second waveguide.
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公开(公告)号:US20240184149A1
公开(公告)日:2024-06-06
申请号:US18532941
申请日:2023-12-07
Applicant: HyperLight Corporation
Inventor: Jeffrey Cole Holzgrafe , Christian Reimer , Mian Zhang , Prashanta Kharel , Kevin Luke , Lingyan He
IPC: G02F1/035
CPC classification number: G02F1/0356 , G02F2201/063 , G02F2201/122 , G02F2202/20
Abstract: An optical modulator includes optical material(s) and first and second differential electrode pairs. The optical material(s) exhibit an electro-optic effect and include lithium. The optical material(s) include first and second waveguides and first and second slab portions adjoining the first and second waveguides. The first differential electrode pair has electrodes arranged on opposing sides of the first waveguide. The second differential electrode pair has electrodes arranged on opposing sides of the second waveguide. The negative electrodes are arranged on distal sides of the waveguide relative to the other waveguide. The positive electrodes are arranged on proximal sides of waveguide relative to the other waveguide. The first and second waveguides, the first and second slab portions, and the first and second differential electrode pairs reside on a substrate structure. No portion of the first slab portion is between the first or second differential electrode pair and the substrate structure.
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公开(公告)号:US11567353B2
公开(公告)日:2023-01-31
申请号:US17102047
申请日:2020-11-23
Applicant: HyperLight Corporation
Inventor: Prashanta Kharel , Mian Zhang , Christian Reimer , Kevin Luke , Lingyan He
Abstract: An optical device including a waveguide and an electrode is described. The waveguide includes at least one optical material having an electro-optic effect. The electrode includes a channel region and extensions protruding from the channel region. The extensions are closer to a portion of the waveguide than the channel region is.
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公开(公告)号:US11307484B2
公开(公告)日:2022-04-19
申请号:US17016234
申请日:2020-09-09
Applicant: HYPERLIGHT CORPORATION
Inventor: Mian Zhang , Christian Reimer , Kevin Luke
Abstract: An integrated electro-optic frequency comb generator based on ultralow loss integrated, e.g. thin-film lithium niobate, platform, which enables low power consumption comb generation spanning over a wider range of optical frequencies. The comb generator includes an intensity modulator, and at least one phase modulator, which provides a powerful technique to generate a broad high power comb, without using an optical resonator. A compact integrated electro-optic modulator based frequency comb generator, provides the benefits of integrated, e.g. lithium niobate, platform including low waveguide loss, high electro-optic modulation efficiency, small bending radius and flexible microwave design.
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公开(公告)号:US20210311336A1
公开(公告)日:2021-10-07
申请号:US16838763
申请日:2020-04-02
Applicant: HyperLight Corporation
Inventor: Prashanta Kharel , Mian Zhang , Christian Reimer
IPC: G02F1/035
Abstract: A velocity mismatch between optical signals and microwave electrical signals in electro-optic devices, such as modulators, may be compensated by utilizing different lengths of bends in the optical waveguides as compared to the microwave electrodes to match the velocity of the microwave signal propagating along the coplanar waveguide to the velocity of the optical signal. To ensure the electrode bends do not affect the light in the optical waveguide bends, the electrode may have to be rerouted, e.g. above or below, the optical waveguide layer. To ensure that the pair of optical waveguides have the same optical length, a waveguide crossing may be used to cross the first waveguide through the second waveguide.
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公开(公告)号:US11086048B1
公开(公告)日:2021-08-10
申请号:US16785206
申请日:2020-02-07
Applicant: HyperLight Corporation
Inventor: Mian Zhang , Kevin Luke
Abstract: An optical device is described. At least a portion of the optical device includes lithium niobate and is fabricated utilizing ultraviolet lithography. In some aspects the at least the portion of the optical device is fabricated using deep ultraviolet lithography. In some aspects, the short range root mean square surface roughness of a sidewall of the at least the portion of the optical device is less than ten nanometers. In some aspects, the at least the portion of the optical device has a loss of not more than 2 dB/cm.
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公开(公告)号:US20250155739A1
公开(公告)日:2025-05-15
申请号:US18942189
申请日:2024-11-08
Applicant: HyperLight Corporation
Inventor: Fan Ye , Christian Reimer , Mian Zhang , Kevin Luke , Amirmahdi Honardoost
IPC: G02F1/035
Abstract: A substrate configured for an electro-optic device and an electro-optic device formed using the substrate are described. The substrate includes a semiconductor substrate, an insulating layer, and at least one thin film optical material. The semiconductor substrate includes a trap-rich layer and an underlying substrate layer. The insulating layer is on the semiconductor substrate, The trap-rich layer is between the underlying substrate layer and the insulating layer. The thin film optical material(s) have an electro-optic effect and are on the insulating layer.
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公开(公告)号:US20250013086A1
公开(公告)日:2025-01-09
申请号:US18777425
申请日:2024-07-18
Applicant: HyperLight Corporation
Inventor: Christian Reimer , Jeffrey Cole Holzgrafe , Mian Zhang , Kevin Luke
Abstract: An optical device is described. The optical device includes a waveguide and a modulation driver. The waveguide includes a first region, a second region, and a tapered region between the first and second regions. The first region supports a first set of modes of an optical signal. The second region supports a second set of modes of the optical signal. The first set of modes is different from the second set of modes. The tapered region is between the first region and the second region. The waveguide includes lithium. The modulation driver is configured to provide modulation of the optical signal in the first region.
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公开(公告)号:US20240385470A1
公开(公告)日:2024-11-21
申请号:US18665412
申请日:2024-05-15
Applicant: HyperLight Corporation
Inventor: Mian Zhang , Roy Meade , Kevin Luke
IPC: G02F1/035
Abstract: A wafer for an integrated photonics system is described. The wafer includes a substrate and at least one thin film lithium-containing optical material on the substrate. The wafer also includes at least one photodetecting layer on and bonded with the thin film lithium-containing optical material(s).
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公开(公告)号:US11940677B1
公开(公告)日:2024-03-26
申请号:US17532635
申请日:2021-11-22
Applicant: HyperLight Corporation
Inventor: Mian Zhang , Christian Reimer , Prashanta Kharel
IPC: G02F1/01
CPC classification number: G02F1/011
Abstract: An optical device including a waveguide, electrodes, and a connecting dielectric is described. The waveguide includes an electro-optic material having a waveguide optical refractive index and a waveguide microwave dielectric constant. The electrodes include a first electrode and a second electrode. The waveguide is between the first electrode and the second electrode. At least a portion of the connecting dielectric is between the waveguide and electrodes. The connecting dielectric has a microwave dielectric constant greater than the waveguide microwave dielectric constant.
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