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    • 4. 发明申请
    • STABLE MICROWAVE-FREQUENCY SOURCE BASED ON CASCADED BRILLOUIN LASERS
    • 基于级联型布里渊激光器的稳定微波频率源
    • WO2015191124A3
    • 2016-03-31
    • PCT/US2015019080
    • 2015-03-06
    • CALIFORNIA INST OF TECHN
    • LI JIANGVAHALA KERRY
    • H01S3/30H01S3/10
    • H03B17/00H01S3/005H01S3/06791H01S3/0809H01S3/09415H01S3/1312H01S3/302H01S5/0085
    • A microwave-frequency source, generating an output electrical signal at an output frequency ƒM, comprises a pump laser source, an optical resonator, and a photodetector. Free spectral range vFSR of the optical resonator equals an integer submultiple of a Brillouin shift frequency vB of the optical resonator (i.e., vB=MvFSR). The pump laser source is frequency-locked to a corresponding resonant optical mode of the optical resonator. Pumping the optical resonator with output of the pump laser source at a pump frequency vpump results in stimulated Brillouin laser oscillation in the optical resonator at respective first, second, and third Stokes Brillouin-shifted frequencies v1=vpump-vB, V2=Vpump-2vB, and v3=vpump-3vB. The photodetector receives stimulated Brillouin laser outputs at the first and third Stokes Brillouin-shifted frequencies ν1 and v3 and generates therefrom the output electrical signal at a beat frequency ƒM=V1-V3=2vB. The output electrical signal at the output frequency ƒM exhibits exceptionally low phase noise.
    • 产生输出频率为M的输出电信号的微波频率源包括泵浦激光源,光学谐振器和光电探测器。 光学谐振器的自由光谱范围vFSR等于光学谐振器的布里渊移位频率vB的整数约数(即vB = MvFSR)。 泵浦激光源被频率锁定到光学谐振器的相应谐振光学模式。 用泵浦激光源的输出以泵浦频率vpump泵浦光学谐振腔导致光学谐振腔中的受激布里渊激光振荡在相应的第一,第二和第三斯托克斯布里渊偏移频率v1 = vpump-vB,V2 = Vpump-2vB ,并且v3 = vpump-3vB。 光电探测器接收第一和第三斯托克斯布里渊偏移频率v1和v3的受激布里渊激光输出,并由此产生拍频μM= V1-V3 = 2vB的输出电信号。 输出频率为ƒM的输出电信号表现出非常低的相位噪声。
    • 5. 发明申请
    • STABLE MICROWAVE-FREQUENCY SOURCE BASED ON CASCADED BRILLOUIN LASERS
    • 基于圆柱形激光器的稳定的微波源
    • WO2015191124A8
    • 2016-01-21
    • PCT/US2015019080
    • 2015-03-06
    • CALIFORNIA INST OF TECHN
    • LI JIANGVAHALA KERRY
    • H01S3/30H01S3/10
    • H03B17/00H01S3/005H01S3/06791H01S3/0809H01S3/09415H01S3/1312H01S3/302H01S5/0085
    • A microwave-frequency source, generating an output electrical signal at an output frequency ƒM, comprises a pump laser source, an optical resonator, and a photodetector. Free spectral range vFSR of the optical resonator equals an integer submultiple of a Brillouin shift frequency vB of the optical resonator (i.e., vB=MvFSR). The pump laser source is frequency-locked to a corresponding resonant optical mode of the optical resonator. Pumping the optical resonator with output of the pump laser source at a pump frequency vpump results in stimulated Brillouin laser oscillation in the optical resonator at respective first, second, and third Stokes Brillouin-shifted frequencies v1=vpump-vB, V2=Vpump-2vB, and v3=vpump-3vB. The photodetector receives stimulated Brillouin laser outputs at the first and third Stokes Brillouin-shifted frequencies ν1 and v3 and generates therefrom the output electrical signal at a beat frequency ƒM=V1-V3=2vB. The output electrical signal at the output frequency ƒM exhibits exceptionally low phase noise.
    • 产生输出频率ƒM的输出电信号的微波频率源包括泵激光源,光谐振器和光电检测器。 光谐振器的自由光谱范围vFSR等于光谐振器的布里渊移位频率vB的整数倍(即vB = MvFSR)。 泵激光源被频率锁定到光谐振器的相应的谐振光学模式。 以泵浦频率v泵浦泵浦激光源的输出泵浦光谐振器导致光谐振器中的相应的第一,第二和第三斯托克斯布里渊移位频率v1 = vpump-vB,V2 = Vpump-2vB的受激布里渊激光振荡 ,v3 = vpump-3vB。 光电检测器以第一和第三斯托克斯布里渊移位频率ν1和v3接收受激布里渊激光输出,并以其频率fM = V1-V3 = 2vB产生输出电信号。 输出频率ƒM的输出电信号表现出极低的相位噪声。