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    • 5. 发明授权
    • Single-frequency Brillouin fiber ring laser with extremely narrow linewidth
    • 单频布里渊光纤环形激光器具有极窄的线宽
    • US07272160B1
    • 2007-09-18
    • US11096472
    • 2005-03-31
    • Jihong GengShibin Jiang
    • Jihong GengShibin Jiang
    • H01S3/083H01S3/13H01S3/30
    • H01S3/302H01S3/06791
    • A single-frequency Brillouin fiber ring laser with extremely narrow linewidth comprises a single-frequency narrow-linewidth rapid-tunable pump laser, a temperature-controlled acoustically-damped package for Brillouin fiber ring laser cavity, and an auto-tracking feedback electronic loop with novel configuration for active stabilization. The Pound-Drever-Hall frequency-locking technique is employed to keep pump laser frequency in resonance with one of the Brillouin fiber ring cavity modes. Instead of changing cavity length of Brillouin fiber ring laser, the pump laser frequency is rapidly tuned in the auto-tracking feedback electronic loop. This enables extremely narrow linewidth radiation emitted from a Brillouin fiber ring laser without stretching the fiber ring. Dual-wavelength actively stabilized Brillouin fiber ring laser may be generated from a single ring cavity by polarization-combining or wavelength-combining two pump laser beams and using two independent feedback loops to the two operation wavelengths.
    • 具有极窄线宽的单频布里渊光纤环形激光器包括单频窄线宽快速可调泵浦激光器,用于布里渊光纤环形激光腔的温度控制声阻尼封装,以及自动跟踪反馈电子回路 主动稳定的新颖配置。 采用Pound-Drever-Hall频率锁定技术保持泵浦激光频率与布里渊光纤环腔模式之一共振。 代替改变布里渊光纤环形激光器的腔长度,泵激光频率在自动跟踪反馈电子回路中快速调谐。 这使得从布里渊光纤环形激光器发射的非常狭窄的线宽辐射无需拉伸光纤环。 双波长主动稳定的布里渊光纤环形激光器可以通过偏振组合或波长组合两个泵浦激光束并使用两个独立的反馈回路到两个工作波长从单个环形腔产生。