Wavelength-Division Multiplexing Michael Borella, Biswanath Mukherjee, Feiling Jia, S. Ramamurthy, Dhritiman Banerjee, and Jason Iness Department of Computer Science, University of California, Davis, CA 95616 Abstract Multiprocessor architectures based on optical interconnects employing wavelength division multiplexing (WDM) are considered. WDM is a technique used to divide the tremendous bandw...

An easy and efficient evolution method from a time-division multiplexing passive optical networks (TDM-PONs) to next-generation PONs is proposed and demonstrated. A single-type wavelength band combiner/splitter (WC) enables a simple and efficient evolution of TDM-PON maintaining the current PON infrastructure and wavelength plan. The feasibility of the proposed evolution architecture is shown b...

We demonstrate for the first time to the best of our knowledge an analogue orthogonal frequency division multiplexing (OFDM) based electrical code division multiplexing access (ECDMA) passive optical network (PON) for next generation access applications. Advantages of the system include low cost, high capacity, and enhanced spectral efficiency. A proof-of-principle 16 QAM OFDM ECDMA PON downlin...

The optical networks are fast and error free but due to some nonlinearity effects, its performance degrades. The performance of wavelength division multiplexing (WDM) in radio over fiber (RoF) systems is found to be strongly influenced by nonlinearity characteristics inside the fiber. In this paper, we have studied the effect of four wave mixing (FWM) as one of the influential factors in the WD...

We propose and demonstrate silicon photonic integrated circuits (PICs) for free-space spatial-division-multiplexing (SDM) optical transmission with multiplexed orbital angular momentum (OAM) states over a topological charge range of -2 to +2. The silicon PIC fabricated using a CMOS-compatible process exploits tunable-phase arrayed waveguides with vertical grating couplers to achieve space divis...

Mode division multiplexing (MDM) is a promising technology for increasing the aggregate bandwidth of multimode fiber (MMF) in conjunction with wavelength division multiplexing (WDM) in face of the impending capacity crunch in optical fiber networks. This paper investigates the effect of radial and azimuthal mode spacings in a 25-channel MDM-WDM system in MMF using a spatial light modulator-cont...

The performance of Absolute Polar Duty Cycle Division Multiplexing (AP-DCDM) over Polarization Division Multiplexing (PolDM) system is presented based on the simulation results, in order to double the capacity in optical fiber links. It is demonstrated that the spectral width occupied by 10 Gb/s RZ is 40 GHz whereas, this value can be reduced to 20 GHz over 2 channels of the proposed system. Si...

Optical communication technology has been developed rapidly to achieve larger transmission capacity and longer transmission distance. In this paper we demonstrated optical time division multiplexing extended reach 10 Gb/s passive optical network (PON) architecture of 100 km length with 1:128 split ratio. The 100 km system is enabled by the use of corning nexcore fiber and corning SMF-28 fiber w...

<span>This paper exemplifies dense wavelength division multiplexing combined with polarization C-band frequency range-based single-mode fiber. In the proposed link, 32 independent channels 16 individual wavelengths are multiplexed two different angles of polarization. Each carrying 130 Gbps dual-polarization data 200 GHz channel spacing claiming a net transmission rate 4.16 Tbits/s spectr...

In this paper, we consider the Routing and Wavelength Assignment (RWA) problem in Wavelength Division Multiplexing (WDM) networks. Firstly, we propose separate linear programming (LP) formulations for the lightpath routing and the wavelength assignment subproblems. Then, an iterative algorithm that integrates both formulations is also proposed for solving the complete RWA problem. The objective...