Asymmetric Tuning Schemes of MEMS Dual-Shutter VOA

  title={Asymmetric Tuning Schemes of MEMS Dual-Shutter VOA},
  author={X. Zhang and Q. J. Zhao and A. Q. Liu and Z Zhang and J. H. Lau and C. H. Kam},
  journal={Journal of Lightwave Technology},
A dual-shutter MEMS variable optical attenuator (VOA) is designed for advanced tuning functions such as linear attenuation relationship and simultaneous coarse and fine tunings. The mechanism behind is to take advantage of the additional shutter to render one more degree of freedom for attenuation adjustment. Although dual-shutter VOAs with asymmetric functionalities have been reported before, these intrinsic capabilities owing to asymmetry have not been extensively investigated. In experiment… CONTINUE READING