Integrated electro-optic frequency comb generator

    公开(公告)号:US11733586B2

    公开(公告)日:2023-08-22

    申请号:US17701952

    申请日:2022-03-23

    CPC classification number: G02F1/365 G02F1/3551 G02F2203/56

    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.

    THIN FILM LITHIUM-CONTAINING PHOTONICS WAFER HAVING A TRAP-RICH SUBSTRATE

    公开(公告)号:US20250155739A1

    公开(公告)日:2025-05-15

    申请号:US18942189

    申请日:2024-11-08

    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.

    LOW-LOSS WAVEGUIDING STRUCTURES, IN PARTICULAR MODULATORS

    公开(公告)号:US20250013086A1

    公开(公告)日:2025-01-09

    申请号:US18777425

    申请日:2024-07-18

    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.

    LITHIUM NIOBATE DEVICES FABRICATED USING DEEP ULTRAVIOLET RADIATION

    公开(公告)号:US20210302624A1

    公开(公告)日:2021-09-30

    申请号:US17346061

    申请日:2021-06-11

    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.

    INTEGRATED ELECTRO-OPTIC FREQUENCY COMB GENERATOR

    公开(公告)号:US20210072616A1

    公开(公告)日:2021-03-11

    申请号:US17016234

    申请日:2020-09-09

    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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