title: The frequency stabilization method of laser feedback interferometer based on external cavity modulation.
abstract: Laser frequency stabilization is one of the foremost factors that influence the accuracy of measurement using a laser feedback interferometer, especially when the system is in the presence of strong optical feedback. In this paper, we use external cavity modulation to demonstrate a simple and effective method of frequency stabilization for laser feedback interferometer with strong optical feedback. The external cavity modulation is realized by oscillating a feedback mirror driven by a piezoelectric ceramic, the stable feedback optical field is obtained that has strong performance of anti-disturbance. Meanwhile, we stabilize the laser frequency by the thermal frequency-stabilizing. These lead to the realization of stable laser feedback interferometer. The relative uncertainty of the frequency stabilization is less than 1 part in 10(7).
authors: The State Key Lab of Precision Measurement Technology and Instrument, Department of Precision Instruments, Tsinghua University, Beijing 100084, China.
authors: Zhaoli
authors: Z
authors: Zeng
authors: Shulian
authors: S
authors: Zhang
authors: Yidong
authors: Y
authors: Tan
authors: Yun
authors: Y
authors: Wu
authors: Yan
authors: Y
authors: Li