A method on laser power stabilization in optical detection cesium atomic clock

• 作 者: ZiyuChen;ChangLiu;ShuhuiWang;YanhuiWang;
• 机 构: School of Electronics Engineering and Computer Science,Peking University,Beijing,China
• 出 处: 第九届中国卫星导航学术年会
• 发表日期: 2018年期

　　Laser detection avoid the limitation on cesium clocks' lifespan due to electron multipliers.However,the laser inevitably induces light shift.By measuring the frequency shifts under various light powers,we study the light shift.The dependence of the light shift on the light power is 2×10-12/mW.The Allan deviation of the output power of the laser diode is 4.5×10-3 at 105 s under free running.The temperature coefficient of the clock is 1×10-12/℃.For a high-performance cesium clock,the light shift is one of the main restricts to accuracy and long-term stability.