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    Low-power source of squeezed light
    4.
    发明授权
    Low-power source of squeezed light 有权

    公开(公告)号：US12021344B2

    公开(公告)日：2024-06-25

    申请号：US18121186

    申请日：2023-03-14

    Applicant: The MITRE Corporation

    Inventor： Bonnie L. Marlow

    IPC: H01S3/00 ,  G02F1/35 ,  H01S3/0941 ,  H01S3/227 ,  H01S3/16

    CPC classification number: H01S3/0057 ,  G02F1/3536 ,  H01S3/0092 ,  H01S3/0941 ,  H01S3/227 ,  H01S3/169 ,  H01S2301/02

    Abstract: A degenerate four-wave mixing (DFWM) squeezed light apparatus includes one or more pump beams, a probe beam, a vapor cell, a repump beam, and a detector. The one or more pump beams includes an input power of no greater than about 150 mW. The vapor cell includes an atomic vapor configured to interact with overlapped pump and probe beams to generate an amplified probe beam and a conjugate beam. The repump beam is configured to optically pump the atomic vapor to a ground state and decrease atomic decoherence of the atomic vapor. The detector is configured to measure squeezing due to quantum correlations between the amplified probe beam and the conjugate beam. The one or more pump beams, the probe beam, and the repump beam are configured to generate two-mode squeezed light by DFWM with squeezing of at least 3 dB below shot noise.

    ALL-SOLID-STATE SINGLE-FREQUENCY CONTINUOUS WAVE LASER
    6.
    发明公开
    ALL-SOLID-STATE SINGLE-FREQUENCY CONTINUOUS WAVE LASER 审中-公开

    公开(公告)号：US20240120701A1

    公开(公告)日：2024-04-11

    申请号：US18235804

    申请日：2023-08-18

    Applicant: Shanxi University

    Inventor： Huadong LU ,  Yixiao WEI ,  Jing SU ,  Kunchi PENG

    IPC: H01S3/08 ,  H01S3/07 ,  H01S3/083 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/108 ,  H01S3/16

    CPC classification number: H01S3/08072 ,  H01S3/07 ,  H01S3/08059 ,  H01S3/083 ,  H01S3/094053 ,  H01S3/0941 ,  H01S3/108 ,  H01S3/163

    Abstract: An all-solid-state single-frequency continuous wave laser is provided, which includes a symmetric ring resonant cavity, a first gain crystal and a second gain crystal symmetrically arranged in the symmetric ring resonant cavity, and a gain unit symmetrically arranged between the first gain crystal and the second gain crystal. The gain unit includes at least one gain crystal arranged in sequence. In the gain unit, a third gain crystal nearest to the first gain crystal and a fourth gain crystal nearest to the second gain crystal are symmetrically arranged. Each gain crystal is coupled with a separate pump source. Each gain crystal in the symmetric ring resonant cavity is equipped with a separate pump source, and the imaging system is eliminated in the symmetric ring resonant cavity. On the premise that the pump power is not limited, the laser can achieve stable single-frequency operation in a wide pump range.

    SLAB LASER WITH FOLDED PUMP FOR EXTENDED PERFORMANCE
    8.
    发明公开
    SLAB LASER WITH FOLDED PUMP FOR EXTENDED PERFORMANCE 审中-公开

    公开(公告)号：US20240039231A1

    公开(公告)日：2024-02-01

    申请号：US18226963

    申请日：2023-07-27

    Applicant: OneLight Sensing, LLC

    Inventor： Michael G. Solonenko

    IPC: H01S3/08 ,  H01S3/094 ,  H01S3/06 ,  H01S3/0941

    CPC classification number: H01S3/08095 ,  H01S3/09403 ,  H01S3/0606 ,  H01S3/0941

    Abstract: A device may include an active material, a primary optical system, and a pump optical system. The primary optical system forms a primary folded optical path through the active material for a primary optical beam. The pump optical system forms a pump folded optical path through the active material for pump light. The pump folded optical path overlaps with the primary folded optical path in the active material. The pump light propagating along the pump folded optical path pumps the active material to amplify the primary optical beam propagating through the active material along the primary folded optical path.

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