J4 ›› 2018, Vol. 35 ›› Issue (4): 402-407.

• Laser Tech. and Devices • Previous Articles     Next Articles

Investigation of preparation and phase noise of Raman laser based on optical phase-locked loop

CAO Lei , LU Sibing, Wang Kai , YAO Zhanwei , LI Runbing, WANG Jin, ZHAN Mingsheng   

  1. 1 State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China; 2 Center for Cold Atom Physics, Chinese Academy of Sciences, Wuhan 430071, China; 3 University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2017-04-24 Revised:2017-05-20 Published:2018-07-28 Online:2018-07-12
  • Supported by:

    Supported by National Natural Science Foundation of China(国家自然科学基金, 11674362), National Key Reseach and Development Program of China(国家重点研发计划, 2016YFA0302002)

Abstract:

Atom interferometry has important prospect in the precise measurement and inertial navigation fields. The high-precision atom interferometer has an urgent need for Raman lasers with low phase noise and high output power. A dual-wavelength synchronous injection-amplification Raman laser preparation scheme based on optical phase-locked loop is designed, and the preparation of high-power Raman laser is achieved. The phase noises of Raman lasers before and after amplification are both below -80 dBc @ 0.01?1 MHz, and the total output power reaches 400 mW, which can meet the needs of atom interferometer based precision measurement.

Key words: atom interferometer;phase-locked loop;Raman laser;phase noise