Philippe Perrier

New Field Trial Distance Record of 3040 km on Wide Reach WDM With 10 and 40 Gb/s Transmission Including OC-768 Traffic Without Regeneration

Verizon successfully carried Juniper OC-768 traffic on its Richardson, TX, field trial network to 3040 and 2560 km, respectively, using Minteras 40-Gb/s RZ-DPSK and CS-RZ transponders over Xteras all Raman Ultra Long Haul system loaded with 68 times 10 Gb/s channels

Unrepeatered 100G Transmission Over 520.6 km of G.652 Fiber and 556.7 km of G.654 Fiber With Commercial Raman DWDM System and Enhanced ROPA

We report the results of 100G unrepeatered transmission aimed at achieving the longest distance without any inline active elements. The unrepeatered transmission system uses commercial distributed Raman pump modules, enhanced ROPA, and real-time processing coherent 100G transceivers (PM-QPSK) with soft-decision FEC. Two types of ultra-low loss fibers, G.652B and G.654B compliant, are fully characterized and used as span fiber. First, a single 100G channel is successfully transmitted over 520.6 km of G.652B fiber (86.2 dB) in a lab trial. Second, cabled large effective area, ultra-low loss G.654B fiber in a field environment is used as span fiber. A single 100G channel and four 100G channels are transmitted over 556.7 km (90.2 dB) and 523.2 km (84.8 dB), respectively.

4-channel, 10-Gbit/s capacity self-healing WDM ring network with wavelength add/drop multiplexers

With wavelength-division multiplexed (WDM) terrestrial links currently being proposed commercially it is reasonable to expect that these systems will evolve to include networking functions. Already, several wavelength add/drop multiplexers (WADM) have been investigated. A novel, nonsynchronous N-channel W-ADM architecture, with full connectivity capability, is investigated.

150 x 120 Gb/s unrepeatered transmission over 409.6 km of large effective area fiber with commercial Raman DWDM system

15 Tb/s unrepeatered transmission is achieved over 409.6 km (68.2 dB) of large effective area fiber using forward and backward distributed Raman amplification and a remotely-pumped erbium-doped optical amplifier. This result provides a record capacity-reach product of 6.14 Pb/s-km over a single fiber type. We also demonstrate channel growth from 10 to 150 waves within 61 nm amplification bandwidth.

Design, modelling and implementation of the ATMOS project fibre delay line photonic switching matrix

This paper presents the fibre delay line switching matrix, a high-performance photonic system consisting of an electrically controlled optical high-speed transport network. This photonic matrix adopts the asynchronous transfer mode (ATM) technique and an internal self-routing architecture based on wavelength encoding, for cell routing and multiplexing. A set of output queues provides the buffering function.An extensive performance evaluation is presented, with reference to both the traffic throughput and technology feasibility. Numerical results have been obtained to evaluate optical performance and the implementation of a 4×4 demonstrator, supporting a 2.5 Gbit s-1 input/output rate, shows the feasibility of the matrix with state-of-the-art optical technology.Its high performance makes the fibre delay line switching matrix a strong candidate for implementing the core of future high-speed broadband ATM switches.

Unrepeatered high-speed transmission systems

We review recent advances in the technologies required for high-speed unrepeatered transmission systems, with a specific focus on distributed Raman amplification. We also report several experimental demonstrations with record capacity and reach combinations.

Where to Locate Wavelength Conversion in WDM Networks

The massive deployment of Wavelength-Division Multiplexing (WDM) in existing transport networks worldwide will facilitate the definition of a photonic transport layer. Different routing strategies of optical paths in such networks have been investigated [1]; resource allocation has also been proposed using two different schemes based on wavelength routing and wavelength switching, respectively. The design of a WDM transport network not only implies identifying algorithms for routing and resource allocation but also modeling of different routing functions at the node and network levels. Such a function is wavelength conversion.

Ultra-long unrepeatered transmission over 607 km at 100G and 632 km at 10G

This paper reports record unrepeatered transmission results using forward and backward distributed Raman amplifications, large effective area ultra-low loss fiber and enhanced ROPAs with additional pumping fibers. Coherent 100 Gb/s with PM-QPSK modulation format and OOK 10G transmission are demonstrated over 607 km (97.2 dB) and 632 km (101.0 dB), respectively.

150 × 120 Gb/s unrepeatered transmission over 333.6 km and 389.6 km (with ROPA) G.652 fiber

A record capacity of 15 Tb/s unrepeatered transmission has been demonstrated over 333.6 km (55.4 dB) and 389.6 km (64.3 dB) with ROPA. All transmission results have been achieved with G.652 fiber using forward and backward distributed Raman amplification.

Planning of WDM networks: methods, routing node modeling and applications

This paper introduces the wavelength-division multiplexing technique in the transport network. The different optical routing node (F-OXC, /spl lambda/-OXC with and without wavelength translation) functionalities are defined and criteria to use each of them are proposed. Results are discussed on a real test case based on the Pan-American Optical Network. First, the major benefits of the wavelength translation are underlined and results are presented where only a limited number of nodes with wavelength translation is needed. Second, the advantage of introducing fiber crossconnect to implement the protection scheme at the multiplex level are illustrated.