TY - JOUR
T1 - Self-clocked all-optical add/drop multiplexer for asynchronous CDMA ring networks
AU - Kravtsov, Konstantin
AU - Deng, Yanhua
AU - Prucnal, Paul R.
N1 - Funding Information:
Manuscript received June 30, 2008; revised September 02, 2008. Current version published March 25, 2009. This work was supported by the Defense Advanced Research Projects Agency under Contract MDA972-03-1-0006. The authors are with the Department of Electrical Engineering, Princeton University, Princeton NJ 08544 USA (e-mail: [email protected]; [email protected]; [email protected]; [email protected]) Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/JQE.2009.2013105
PY - 2009
Y1 - 2009
N2 - In this paper, we demonstrate a novel self-clocked code-drop unit for incoherent optical code-division multiple-access (CDMA) networks. The unit is based on an all-optical thresholder with internal wavelength conversion that creates a control signal for the drop gate from the incoming data stream. This architecture does not require an external clock signal for drop operation and can be used in asynchronous ring networks. The proposed unit is experimentally demonstrated for two-dimensional time-wavelength optical CDMA codes at a bit rate of 2.5 Gbit/s with two different types of drop gates: Terahertz optical asymmetric multiplexer and nonlinear fiber-based loop mirror. Error-free operation is achieved in both configurations. The development of a self-clocked add/drop multiplexer demonstrates a novel concept of asynchronous node operation in multiple access networks.
AB - In this paper, we demonstrate a novel self-clocked code-drop unit for incoherent optical code-division multiple-access (CDMA) networks. The unit is based on an all-optical thresholder with internal wavelength conversion that creates a control signal for the drop gate from the incoming data stream. This architecture does not require an external clock signal for drop operation and can be used in asynchronous ring networks. The proposed unit is experimentally demonstrated for two-dimensional time-wavelength optical CDMA codes at a bit rate of 2.5 Gbit/s with two different types of drop gates: Terahertz optical asymmetric multiplexer and nonlinear fiber-based loop mirror. Error-free operation is achieved in both configurations. The development of a self-clocked add/drop multiplexer demonstrates a novel concept of asynchronous node operation in multiple access networks.
KW - Add/drop multiplexer
KW - Code-division multiple access (CDMA)
KW - Optical fiber communications
KW - Self-clocked operation
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U2 - 10.1109/JQE.2009.2013105
DO - 10.1109/JQE.2009.2013105
M3 - Article
AN - SCOPUS:63649133315
SN - 0018-9197
VL - 45
SP - 396
EP - 401
JO - IEEE Journal of Quantum Electronics
JF - IEEE Journal of Quantum Electronics
IS - 4
ER -