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Cost-effective, asynchronous 4 × 40Gbps full-duplex DPSK-OCDMA PON using 8-level phase-shifted, 320 Gchip/s apodized SSFBG en/decoders at each ONU and a single multi-port en/decoder at OLT is experimentally demonstrated for the first time.
In a cost-effective TDM-OCDMA-PON system without en/decoder at each ONU, the uplink dispersion-compensation-free 10 Gbps/1 Gbps-co-existing TDM × 4-OCDMA transmission over 100 km SMF is demonstrated by adopting 10G/1G dual-rate burst-mode receiver.
We experimentally demonstrate 1-to-9 optical wavelength multicasting, based on dualpump four-wave mixing in highly-nonlinear fiber. A 100-km field trial experiment is also conducted to demonstrate the feasibility of optical wavelength multicasting.
We demonstrated variable-length optical packet switching and buffering by an asynchronous FPGA-based buffer manager. The optical packets with different payload length and DQPSK format could be optical-label switched and buffered through fiber delay lines with integral multiple unit length.
The view commonly held by carriers and service providers is that the evolution of the next generation access network (NGAN) will be directed toward wavelength division multiplexing (WDM) passive optical network (PON) systems, that can provide symmetric multi-gigabit fiber to the home (FTTH) services. Based on recent field-trial experiments, we demonstrate that code division multiplexing (CDM) is a...
In an extended-reach OCDMA-PON system with passive remote node, 10-Gbps × 4-user, OCDMA transmission over 100-km standard SMF using a single multi-port encoder/decoder without inline dispersion compensation is successfully demonstrated.
A next generation access network becomes necessary to upgrade the systems, providing a larger dedicated bandwidth to each user. Optical code division multiple access (OCDMA) is one promising candidate for new-generation broadband multiple access technique with unique features of full asynchronous transmission, low latency access, soft capacity on demand as well as optical layer security. Recently,...
To enable the quick applications and services of new-born innovative optical network service (INS) in large-scale high-end grid computing, we propose an overlay approach to integrate grid and emerging INS resources establishing the value-added optical grid network flexibly cross over multi-domain WSONs. In particular, we introduce an edge-mode approach which flexibly leverages new multi-function wavelength...
A new architecture for OCDMA-based PON systems is proposed, that allows contentionless, asynchronous access at 10 Gb/s data rate, without using any laser source at the users' premises.
Full-duplex, asynchronous, 10Gbps DPSK-OCDMA system on same wavelength using hybrid multi-port and SSFBG en/decoder is experimentally demonstrated. Error-free (BER<10-9) transmissions for all channels of both up- (4-user) and down- (8-user) link are obtained.
We present different optical secure point-to-point transmission schemes using a planar multiport encoder/decoder. We consider both bit- and block-cipher cryptography: in the first case, each bit (both mark and space) from each user is encoded in a two-key optical code-division multiplexing signal. Block-cipher cryptography encodes a stream of n bits into a single code and corresponds to optical M-ary...
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