Abstract
A high-speed optical modulator with cascaded resonant-type electrodes is presented. To reduce the drive power and switch voltage Vπ and to maintain high-modulation efficiencies, resonant reduced-length electrode structures were cascaded and integrated on LiNbO3. Electrical power coupling into the resonators was realized by a single-input source distributed with electrical power dividers and delay lines. As a result, an optical modulator with four resonant-type cascaded electrodes was fabricated and characterized. This device, with a total active-electrode length as short as 3.4 (4 × 0.85) mm, achieved a switch efficiency Vπ • L of 68 V · mm at 25 GHz at 1.55-µm wavelength, resulting in a drive power 8.7 dB less than that required for a traveling wave modulator with the same active length.
© 2006 IEEE
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription