【摘要】 采用外部ＦＰ腔自锁定单模量子阱半导体激光器，观察到强度噪声的压缩现象，并同时大幅度降低了位相起伏．在３５ＭＨｚ附近观察到１９３％的强度压缩，对应激光输出的压缩度为３７８％，在９ｋＨｚ１００ＭＨｚ范围内观察到约３个数量级的位相噪声降低．获得了近最小测不准态．更多还原

【Abstract】 AbstractBoth intensity squeezing and dramatic phase noise reduction have been obtained with a confocal cavity used to feedback the beam from the quantum well diode laser.We have measured an intensity squeezing of 193%(378% inferred at the laser output) around 35MHz and achieved phase noise reduction of 40—25dB from 9kHz to 100MHz.Quasi minimum uncertainty state have been demonstrated.更多还原