Frequency stabilization of a semiconductor laser using both Rb saturated absorption profiles and double optical feedback systems
作者单位：C/O Sato Lab. Graduate School of Science and Technology Niigata University Ikarashi 2-no-cho Niigata 950-2181 JAPAN Faculty of Engineering Niigata University Ikarashi 2-no-cho Niigata 950-2181 JAPAN National Astronomical Observatory 2-21-1 Osawa Mitaka Tokyo 181-8588 Japan
会议名称：《2007亚洲光电子会议先进传感与图象材料及器件分会场》
会议日期：2007年
关 键 词：semiconductor laser oscillation frequency stabilization Rb absorption line optical feedback
摘 要：The precise interferometric systems employed in today’s artificial satellites require semiconductor lasers of the highest callibur. But, one particularly large obstacle has stood in the way of their broad application;the stabilization of their oscillation frequencies. While a number of different approaches have been tested, none have provided overall, long-term stability. Most recently, we used a Doppler-free absorption line of Rb atoms with a precision temperature controller and an improved laser mount;in this instance, relative optical frequency stability rated 9.07×10-13≤σ（2,τ）≤7.54×10-10 , in averaging time for 0.01s≤τ≤23s. By introducing optical feedback, which narrows the laser’s linewidth, we obtained improved frequency stability.