Technique for translating light-wave frequency by using an optical ring circuit containing a frequency shifter.

@article{Shimizu1992TechniqueFT,
  title={Technique for translating light-wave frequency by using an optical ring circuit containing a frequency shifter.},
  author={Katsuhiro Shimizu and Tsuneo Horiguchi and Yahei Koyamada},
  journal={Optics letters},
  year={1992},
  volume={17 18},
  pages={1307-9}
}
A new technique for the external frequency translation of light waves is proposed. The technique enables the stepwise sweeping of an optical frequency in time over a wide range. The frequency translator is composed of an optical pulse modulator and an optical ring circuit that contains an acousto-optic frequency shifter and an optical amplifier. The pulse launched into the ring circuit undergoes a frequency shift for each complete trip around the ring circuit, and the frequency is translated… CONTINUE READING
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