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FREQUENCY-STABILIZED RANDOM DISTRIBUTED FEEDBACK FIBER RING LASER WITH LOW INTENSITY NOISE
FREQUENCY-STABILIZED RANDOM DISTRIBUTED FEEDBACK FIBER RING LASER WITH LOW INTENSITY NOISE
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机译:具有低强度噪声的频率稳定的随机分布反馈光纤环激光器
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摘要
A method and apparatus for producing single mode random fiber ring laser by inducing random distributed feedback in a short section of the fiber ring to thereby enable single mode lasing while reducing frequency jitter and relative intensity noise. The random distributed feedback maybe achieved through deep refractive index modulation at a series of randomly distributed laser-irradiated points inscribed along the length of the induced random distributed feedback fiber. The laser-processed random distributed feedback fiber maybe incorporated into the fiber ring in conjunction with a variable optical attenuator and band pass optical filter for enhancing the single mode operation.
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