Title :
A novel scheme for generating optical dark return-to-zero pulses and its application in a label switching optical network
Author :
Yu, Jianjun ; Xu, Lei ; Yeo, Yong-Kee ; Ji, Philip Nan ; Wang, Ting ; Chang, Gee-Kung
Author_Institution :
NEC Labs America, Princeton, NJ, USA
fDate :
7/1/2006 12:00:00 AM
Abstract :
We experimentally demonstrate a novel and simple method to generate a dark return-to-zero (RZ) pulse with tunable pulsewidth and extinction ratio by using a dual-arm LiNbO 3 intensity modulator. Our experimental results show that this dark RZ pulse signal can be used in a 10-Gb/s optical packet switching system as an optical label. In addition, we demonstrate that this dark RZ label can be easily erased using the gain saturation effect in a semiconductor optical amplifier.
Keywords :
intensity modulation; lithium compounds; optical fibre communication; optical modulation; optical pulse generation; optical saturation; optical tuning; packet switching; semiconductor optical amplifiers; 10 Gbit/s; LiNbO3; LiNbO3 intensity modulator; extinction ratio; gain saturation effect; label switching optical network; optical dark return-to-zero pulses; optical packet switching; semiconductor optical amplifier; Extinction ratio; Intensity modulation; Optical fiber networks; Optical modulation; Optical packet switching; Optical pulse generation; Optical pulses; Optical saturation; Pulse modulation; Space vector pulse width modulation; Dark-pulse generation; gain saturation effect; label erasure; optical label switching (OLS); optical network; semiconductor optical amplifier (SOA);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.877615
