Title :
Recent progress on hybrid silica-PLCs/LiNbO3 modulator for advanced transmission formats
Author :
Doi, Y. ; Yamada, T.
Author_Institution :
NTT Photonics Labs., NTT Corp., Atsugi, Japan
Abstract :
High-speed optical modulators with a hybrid integration of silica-based planar lightwave circuits and LiNbO3 phase shifters are reviewed. Combining the advantages of the two components, the hybrid modulators offer high functionality and low optical losses with large electro-optic bandwidth. Using this technique, we have demonstrated a 40 Gb/s return-to-zero-(RZ-) DQPSK modulator, a 100 Gb/s polarization-division multiplexing-(PDM-) QPSK modulator, and a 64 QAM modulator.
Keywords :
differential phase shift keying; lithium compounds; multiplexing; optical fibre networks; optical modulation; optical phase shifters; quadrature amplitude modulation; quadrature phase shift keying; 64 QAM modulator; advanced transmission formats; electrooptic bandwidth; high-speed optical modulators; optical losses; phase shifters; planar lightwave circuits; polarization-division multiplexing; return-to-zero DQPSK modulator; silica-based planar lightwave circuits; High speed optical techniques; Optical modulation; Optical polarization; Optical waveguides; Phase modulation; Quadrature amplitude modulation;
Conference_Titel :
OptoElectronics and Communications Conference (OECC), 2010 15th
Conference_Location :
Sapporo
Print_ISBN :
978-1-4244-6785-3
