We propose a new type of optical fiber called homogeneous multi-core fiber (MCF) to drastically increase the transmission capacity of single fiber using the mode-division multiplexing. In this MCF, identical cores are closely arranged so that the cores are strongly coupled to each other to form coupled modes, each of which corresponds to a transmission channel. A novel mode multi/demultiplexer ...

We describe a family of defect-tolerant demultiplexers based on error-correcting codes. A conventional demultiplexer with a k-bit input address and 2-bit output may be fortified against certain defect types by widening its address bus to n > k bits to permit an encoded address to be used within the demultiplexer. The redundant address is computed by an encoder that guarantees a minimum Hamming ...

A thermally tunable 1 × 4 channel optical demultiplexer was designed using an ultra low-loss Si3N4 (propagation loss ~3.1 dB/m) waveguide. The demultiplexer has three 2 × 2 Mach-Zehnder interferometers (MZI), where each of the MZI contains two 2 × 2 general interference based multimode interference (MMI) couplers. The MMI couplers exhibit −3.3 dB to −3.7 dB power division ratios over a 50 nm wa...

This study aims to evaluate the effectiveness of selected color filter film for demultiplexer construction where only signals with certain wavelengths are allowed to pass through the demultiplexer while the other signal that carrying different wavelengths are absorbed. Characterization testing and analysis is done based on recorded data. Demultiplexer components are characterized by the Same So...

In this paper, a Photonic Crystal Ring Resonator (PCRR) based demultiplexer is proposed and designed to drop four different channels. The proposed structure is consists of bus waveguide, dropping waveguide and butterfly shaped ring resonator. The demultiplexer performance parameters such as transmission efficiency, dropping efficiency, crosstalk, quality factor and resonant wavelength are inves...

Volume phase transmission gratings, that have high and uniform diffraction efficiency regardless of polarization of the incident light over a broad wavelength range, have been designed and recorded. Such gratings were incorporated successfully into a novel compact configuration of a coarse wavelength division demultiplexer. Calculated and experimental results of such gratings, and a compact fou...

This paper describes researches concerning the use of Wavelength-Division Multiplexing (WDM) techniques over Polymer Optical Fibres (POFs) links for Residential Networks applications. It is reported the development of a 2-channel WDM Multiplexer/Demultiplexer (MUX/DEMUX) device based on a commercially available dichroic beam-splitter operating in the visible spectra. It describes the use of the...

A prototype free-space-wave drop demultiplexer consisting of a cavity-resonator-integrated grating input/output coupler (CRIGIC) and a different-guided-mode-coupling distributed Bragg reflector (DGM-DBR) was designed for constructing a high-density wavelength-division-multiplexing intra-board chip-to-chip optical interconnection. The CRIGIC consists of one grating coupler and two DBRs, and can ...

In Wavelength Division Multiplexing based Passive Optical Network (WDM-PON), multiple wavelength used to separate Optical Network Unit (ONU). Which actually increase the capacity of PON . WDM process can be dense and ultra-dense depending on channel spacing. In this paper we compare performance of Array Waveguide Grating Demultiplexer (AWG DEMUX) and Fiber Bragg Grating based Demultiplexer (FBG...

In this work, a decoder based demultiplexer is designed using DG MOSFET and its functional behavior is analyzed along with the characteristics of the device. Equivalent circuit method is followed in this work, which is very significant in analyzing the characteristics and performance of the dual gate metal oxide semiconductor field effect transistor. The maximum drain current obtained is 40 mA ...