Title :
Broadband and low driving-voltage LiNbO3 optical modulator with high Tc superconducting transmission line
Author :
Yoshida, K. ; Takeuchi, H. ; Kanaya, H. ; Kanda, Y. ; Uchiyama, T. ; Wang, Z.
Author_Institution :
Dept. of Electron., Kyushu Univ., Fukuoka, Japan
fDate :
3/1/2001 12:00:00 AM
Abstract :
A new design theory is presented of the high-Tc superconducting broadband booster circuit for a LiNbO3 optical modulator. Based on this theory we studied the gain and bandwidth characteristics of the modulator using a transmission line model. We also designed the practical booster circuit using an electromagnetic wave simulator and demonstrated the optical modulator with broadband and high voltage gain as expected from the theory
Keywords :
high-temperature superconductors; lithium compounds; optical modulation; superconducting microwave devices; superconducting transmission lines; LiNbO3; bandwidth; design theory; electromagnetic wave simulator; high Tc superconducting transmission line; high voltage gain; optical modulator; superconducting broadband booster circuit; transmission line model; Circuits; High temperature superconductors; Optical attenuators; Optical films; Optical filters; Optical modulation; Optical resonators; Superconducting transmission lines; Transmission line theory; Voltage;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
