Title :
Highly Stable 160-Gb/s OTDM Technologies Based on Integrated MUX/DEMUX and Drift-Free PLL-Type Clock Recovery
Author :
Ohara, Takuya ; Takara, Hidehiko ; Shake, Ippei ; Yamada, Takashi ; Ishii, Motohaya ; Ogawa, Ikuo ; Okamoto, Minoru ; Kawanishi, Satoki
Author_Institution :
NTT Network Innovation Labs., NTT Corp., Yokosuka
Abstract :
This paper reports 160-Gb/s optical time-division-multiplexed (OTDM) technologies including an all-optical integrated multiplexer (MUX) providing all-channel independent modulation, an all-optical integrated demultiplexer (DEMUX) that offers all-channel simultaneous demultiplexing, and a drift-free phase-locked-loop (PLL)-type clock recovery circuit for ultrahigh-speed OTDM signals. We present the configuration of each technology and the results of experiments on those technologies. Highly stable operation is successfully demonstrated by using a MUX based on periodically-poled lithium niobate (PPLN) hybrid integrated planer lightwave circuit (PLC), a DEMUX based on semiconductor optical amplifier hybrid integrated PLC, and clock recovery circuit based on a PLL with an optical phase modulator and a PPLN waveguide
Keywords :
demultiplexing equipment; integrated optics; lithium compounds; multiplexing equipment; optical communication equipment; optical fibre communication; optical modulation; optical waveguides; phase locked loops; phase modulation; semiconductor optical amplifiers; synchronisation; time division multiplexing; 160 Gbit/s; LiNbO3; all-channel independent modulation; all-channel simultaneous demultiplexing; all-optical integrated demultiplexer; all-optical integrated multiplexer; clock recovery circuit; drift-free clock recovery; highly stable OTDM; hybrid integrated planar lightwave circuit; integrated multiplexing-demultiplexing; lithium niobate waveguide; optical phase modulator; optical time-division multiplexing; periodically poled lithium niobate; phase-locked-loop-type clock recovery; semiconductor optical amplifier; ultrahigh-speed OTDM signals; Clocks; Demultiplexing; Integrated circuit technology; Integrated optics; Multiplexing; Optical modulation; Optical waveguides; Phase locked loops; Phase modulation; Programmable control; Integrated optics; nonlinear optics; optical communication; optical waveguide components; time-division multiplexing;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2006.889046
