We present analysis of different modulation formats using actual Polarization Mode Dispersion (PMD) data of deployed
fiber links in the metro area in Kuala Lumpur, Malaysia. Simulations have been conducted for comparing the
performance of Non-Return-to-Zero (NRZ), Return-to-Zero (RZ), Carrier-Suppressed Return-to-Zero (CSRZ), Phase
Shaped Binary Transmission (PSBT) and Differential Quadrature Phase Shift Keying (DQPSK) modulation formats for
possible future upgrade to 40Gbps from an existing 10Gbps DWDM system. The performance in terms of BER is
presented to illustrate the limitations attributed to PMD based on current existing network configurations.
This paper presents a study on an all-optical multicasting switching matrix design based on SOA and AWG technology
for all optical DWDM network. The technique not only has the capability to control the degree multicasting optically but
also perform double stage of wavelength conversion. Experimental results have shown the design's capability to
multicast an incoming 10Gbps optical signal onto 16 outgoing signals using Cross Gain Modulation and then using
Cross phase modulation as a second stage of conversion to perform 2R (re-amplified and re-shape).
We present an incoherent optical spectral CDMA (OS-CDMA) multiple-access system that uses in-fibre Bragg gratings for encoding/decoding. The system comprising four channels, one desired and operating at a 2.5Gbps and 10Gbps. Our measurements verify that this technique suffers from severe chromatic dispersion. Nevertheless with appropriate dispersion compensation, the system is able to achieve a span of 100km.
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