Abstract
A high-speed DQPSK optical modulator is fabricated with a thin lithium niobate substrate. Decrease in the propagation loss of electrodes and a low half-wave voltage, which can be realized by fabrication of a ridge-type optical waveguide structure, can help achieve 120-Gb/s (60-Gbaud) NRZ-DQPSK modulation with full electricaltime-division-multiplexing technique.
Original language | English |
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Pages (from-to) | 817-822 |
Number of pages | 6 |
Journal | ieice electronics express |
Volume | 7 |
Issue number | 11 |
DOIs | |
Publication status | Published - 2010 Jun 10 |
Externally published | Yes |
Keywords
- Linbo
- Optical modulator
- Phase-shift-keying
- Quadrature-phase-shift-keying
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering