Title :
40 Gb/s Low-drive-voltage LiNbO3 Optical Modulator for DQPSK Modulation Format
Author :
Doi, Masaharu ; Hashimoto, Naoki ; Hasegawa, Tetsu ; Tanaka, Takehito ; Tanaka, Kazuhiro
Author_Institution :
Fujitsu Lab. Ltd., Atsugi
Abstract :
Low-drive-voltage (3.5 V) and uniform modulation characteristics of MZIs were achieved with Z-cut dual-drive nested-MZIs structure and the wide-gap design between signal and ground electrodes, resulting in precise constellation mappings in 43 Gb/s DQPSK modulation.
Keywords :
Mach-Zehnder interferometers; lithium compounds; optical communication equipment; optical modulation; quadrature phase shift keying; DQPSK modulation; LiNbO3; LiNbO3 - System; MZI; bit rate 40 Gbit/s; bit rate 43 Gbit/s; ground electrodes; low-drive-voltage optical modulator; signal electrodes; voltage 3.5 V; wide-gap design; Electrodes; Modulation coding; Optical design; Optical devices; Optical interferometry; Optical losses; Optical modulation; Optical waveguides; Phase modulation; Signal design;
Conference_Titel :
Optical Fiber Communication and the National Fiber Optic Engineers Conference, 2007. OFC/NFOEC 2007. Conference on
Conference_Location :
Anaheim, CA
Print_ISBN :
1-55752-831-4
DOI :
10.1109/OFC.2007.4348877
