Title :
Modulation-level-selectable optical modulator with a hybrid configuration of silica PLCs and LiNbO3 phase modulators
Author :
Yamazaki, Hiroshi ; Goh, Takashi ; Mori, Atsushi ; Mino, Shinji
Author_Institution :
NTT Photonics Labs., NTT Corp., Atsugi, Japan
Abstract :
We devised and fabricated a modulation-level-selectable (from 4, 8, and 16 levels) optical modulator. A novel lattice configuration enables dynamic modulation-level switching simply by using tunable optical couplers as well as mitigating the modulation losses. Operations at 20-Gbaud were successful.
Keywords :
integrated optics; lithium compounds; optical communication equipment; optical couplers; optical losses; optical modulation; optical switches; phase modulation; phase shift keying; quadrature amplitude modulation; silicon compounds; LiNbO3; N-level phase-shift keying; N-level quadrature amplitude modulation; SiO2; dynamic modulation-level switching; hybrid configuration; lattice configuration; modulation losses; modulation-level-selectable optical modulator; phase modulators; planar lightwave circuits; tunable optical couplers; Couplers; Optical coupling; Optical device fabrication; Optical modulation; Phase shift keying;
Conference_Titel :
Optical Communication (ECOC), 2010 36th European Conference and Exhibition on
Conference_Location :
Torino
Print_ISBN :
978-1-4244-8536-9
Electronic_ISBN :
978-1-4244-8534-5
DOI :
10.1109/ECOC.2010.5621278
