Submicrosecond speed variable optical attenuator using acoustooptics
Abbreviated Journal Title
IEEE Photonics Technol. Lett.
acoustooptics; attenuator; Bragg cell; Engineering, Electrical & Electronic; Optics; Physics, Applied
A novel variable optical attenuator (VOA) is introduced that can provide high dynamic range and high-resolution all at fast submicrosecond speeds. The VOA design exploits an in-line one-to-one imaging optical architecture operating with Bragg-mode acoustooptic Bragg cells, Optical attenuation is achieved via frequency and drive voltage control of the Bragg cells, leading to flexible and precise attenuation-level settings. VOA demonstrated a 45-dB dynamic range with a 175-ns switching time. Other measured parameters include 1.14-dB/MHz resolution, 1.56-dB polarization dependent loss, and an excess loss of 3.55 dB.
Ieee Photonics Technology Letters
"Submicrosecond speed variable optical attenuator using acoustooptics" (2001). Faculty Bibliography 2000s. 8178.