Title :
Double-stub structure for resonant-type optical modulators using 20-μm-thick electrode
Author :
Oikawa, S. ; Kawanishi, T. ; Higuma, K. ; Matsuo, Y. ; Izutsu, M.
Author_Institution :
New Technol. Res. Labs., Sumitomo Cement Co. Ltd., Chiba, Japan
Abstract :
We propose a resonant-type LiNbO3 optical modulator with low halfwave voltage. We optimize the phase constant of the electric wave with thick electrodes to reduce the halfwave voltage. The halfwave voltage of the fabricated modulator with 20-μm-thick electrodes is 5.8 V at 10.6 GHz.
Keywords :
electro-optical modulation; electrodes; lithium compounds; 10.6 GHz; 20 micron; 5.8 V; LiNbO/sub 3/; double-stub structure; electric wave phase constant; low halfwave voltage; resonant-type LiNbO/sub 3/ optical modulator; thick electrodes; Coplanar waveguides; Electrodes; Equivalent circuits; Impedance; Low voltage; Optical design; Optical devices; Optical modulation; Optical waveguides; Resonance;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2002.806102
