标题： 利用受激布里渊散射的光相位锁相环对激光线宽的光电啄食 显示英文标题

标题： Optoelectronic nibbling of laser linewidth using a Brillouin-assisted optical phase-locked loop

摘要： 我们证明了禁止长布里渊谐振器多模运行的相位锁定环实现，也会导致泵浦光本身的光学相位噪声显著降低。 在连续掺铒、镱玻璃激光器的情况下，观察到载波在100 Hz处的噪声降低了超过90 dB。 这使得泵浦激光器的光学线宽估计值小于2 Hz。 该方法与激光波长无关，因此可以应用于几乎任何激光器。 显示英文摘要

摘要： We demonstrate that the implementation of phase-locked loop forbidding multimode operation of a long Brillouin resonator also leads to a dramatic reduction of the optical phase noise of the pump itself. In the case of a continuous Er,Yb:glass laser, a reduction by more than 90 dB at 100 Hz of the carrier is observed. This yields an optical linewidth estimated narrower than 2 Hz for the pump laser. The method being independent of the laser wavelength, it can be applied to almost any laser.