Dual-frequency addressed variable optical attenuator with submillisecond response time
Abbreviated Journal Title
Jpn. J. Appl. Phys. Part 1 - Regul. Pap. Brief Commun. Rev. Pap.
variable optical attenuator; liquid crystal devices; fast response time; dual-frequency addressing; overdrive and undershoot voltages; NEMATIC LIQUID-CRYSTAL; CELLS; Physics, Applied
We demonstrated a submillisecond response time and low-voltage variable optical attenuator (VOA) using a dual-frequency liquid crystal. The dynamic range of the VOA reaches 43 dB at a 1.55 mu m wavelength. A normally on VOA with a flat wavelength response is obtained using a phase compensation cell. Fast rise and decay times are achieved using low-frequency overdrive and high-frequency undershoot voltages. Other approaches to further improve the VOA's performances are discussed.
Japanese Journal of Applied Physics Part 1-Regular Papers Brief Communications & Review Papers
"Dual-frequency addressed variable optical attenuator with submillisecond response time" (2005). Faculty Bibliography 2000s. 5404.