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Yin, Y.

Paper Title Page
FRPMS020 Optical Beam Timing Monitor Experiments at the Advanced Light Source 3952
 
  • S. De Santis, J. M. Byrd, R. B. Wilcox
    LBNL, Berkeley, California
  • Y. Yin
    Y. Y. Labs, Inc., Fremont, California
  
  Funding: Work supported by the U. S. Department of Energy under Contract No. DE-AC0-05CH11231.

We present the results of an experimental study of a beam timing monitor based on a technique demonstrated by Loehl*. This technique uses the electrical signal from a beam position monitor to amplitude-modulate a train of laser pulses, converting timing jitter into an amplitude jitter. This modulation is then measured with a photodetector and sampled by a fast ADC. This approach has already demonstrated sub-100 fsec resolution and promises even better results. Our study focuses on the use of this technique for precision timing for storage rings. We show results of measurements using signals from the Advanced Light Source.

* F. Loehl, et al., Proc. of the 2006 EPAC., p. 2781.

 
FRPMS046 Optical-Fiber NOTCH Filter for Storage Ring Transverse Feedback System 4075
 
  • Y. Yin, X. Che
    Y. Y. Labs, Inc., Fremont, California
  • J. H. Wang, K. Zheng
    USTC/NSRL, Hefei, Anhui
  
  An optical-fiber two-tap FIR filter has been developed for storage ring transverse feedback system. The optical FIR filter has advantage of low loss which is not related to the size of the storage ring, and high-frequency response, compact in size. Measurements have been done with storage ring beam signal. The paper will present the principle and the experimental results.