Results 231 to 240 of about 43,079 (286)

Promising compact wavelength-tunable optical add–drop multiplexer in dense wavelength-division multiplexing systems

Optics Letters, 2004
We design and model a highly compact and tunable optical add-drop multiplexer (OADM) device that consists of long-period gratings and piezoelectric ceramic fiber stretchers. The proposed OADM shows that 50 dense wavelength-division multiplexing channel signals can be selected in the wavelength range from 1526.25 to 1563.75 nm with 0.75-nm channel ...
Yinian, Zhu, Ping, Shum, Chao, Lu, Pieter L, Swart, Beatrys M, Lacquet, Stephanus J, Spammer   +5 more
openaire   +2 more sources

Dense wavelength-division multiplexing millimeter-wave-band radio-on-fiber signal transmission with photonic downconversion

Journal of Lightwave Technology, 2003
T. Kuri, H. Toda, K. Kitayama
semanticscholar   +3 more sources

Multi-Wavelength Laser Source for Dense Wavelength Division Multiplexing Networks

OFC/NFOEC 2007 - 2007 Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference, 2007
We propose and demonstrate an ITU-T grid compatible DWDM laser source with 50 GHz channel spacing. It consists of a passively mode-locked laser, supercontinuum-generating photonic crystal fiber and fiber Fabry-Perot filter for spectral selection.
P. Bakopoulos, E. Kehayas, A. E. H. Oehler, T. Sudmeyer, K. J. Weingarten, K. P. Hansen, C. Bintjas, U. Keller, H. Avramopoulos   +8 more
openaire   +1 more source

Dense wavelength division multiplexing scheme based on effective distributed inline light fiber Raman amplifier configuration

Journal of optical communications
This paper demonstrated the dense wavelength division multiplexing scheme based on effective distributed inline light fiber Raman amplifier configuration.
G. Ramkumar, P. Devi, Vinodhini Shankar, Sivaraman Pandarinathan, Rajinikanth Eshwar, Binu Sukumar, Omar Karem Omran   +6 more
semanticscholar   +1 more source

320 Gbps Free Space Optic Communication System Deploying Ultra Dense Wavelength Division Multiplexing and Polarization Mode Division Multiplexing

Journal of optical communications, 2018
This work aims to investigate the integrated ultra-dense wavelength division multiplexing (UDWDM) and polarization division multiplexing (PDM) schemes incorporated in the free space optic (FSO) communication system.
H. A. Mohammed
semanticscholar   +1 more source

Flattop tunable dense-wavelength division-multiplexing filter-modulator

Journal of the Optical Society of America B, 2004
For spectral filters with subnanometer bandwidth, precise control of the device components’ dimensions ...
Luc Gilles, Phuc Tran
openaire   +1 more source

Dense Wavelength Division Multiplexer based on Microring Resonators

2018 IEEE Student Conference on Research and Development (SCOReD), 2018
This paper demonstrates a dense wavelength division multiplexer (DWDM) based on microring resonators using ring radius variation method. In this design, the spacing between each channel was kept constant at 0.8nm throughout the S, C and L bands. The reference ring size of the ring resonator was 1um.
Nur Musyiirah Haji Masri, M. Rakib Uddin, Law Foo Kui   +2 more
openaire   +1 more source

Sparsely-Filled Densely-Wavelength-Division-Multiplexed Networks

Photonics in Switching, 1993
It has been clear for some time that optical fibre transmission systems have the potential to carry vastly greater amounts of traffic than they are currently used for. For example, in Fig.1, we show typical values for the insertion loss of a 50km fibre section in the 1500nm window and overlay it with an approximate representation of an Erbium Doped ...
openaire   +1 more source

A novel architecture for dense wavelength‐division multiplexing/subcarrier multiplexing networks

Microwave and Optical Technology Letters, 2001
AbstractWe propose and demonstrate a new survivable dense wavelength‐division multiplexing/subcarrier multiplexing (DWDM/SCM) network based on the star–bus–ring architecture (SBRA). This architecture ensures an OBI‐free optical network, and can serve tremendous subscribers. In addition, remote nodes and bidirectional wavelength add/drop multiplexers (B–
Wen‐Piao Lin, Ming‐Seng Kao, Sien Chi   +2 more
openaire   +1 more source

Crosstalk Enhancement in Multiplexer/Demultiplexer Based Arrayed Wavelength Grating in Dense Wavelength Division Multiplexing

2006 IEEE International Conference on Semiconductor Electronics, 2006
In this paper we describe the performance of the Multiplexer/Demultiplexer (MUX/DEMUX) in the Dense Wavelength Division Multiplexer (DWDM) technology based on arrayed waveguide grating (AWG). The accumulated crosstalk in large-scale AWG solved by the cascade-connection of small AWGs.
Salah Elfaki, Abdeen Abdel Kareem, A. B. Mohammed, Sahbudin Shaari   +3 more
openaire   +1 more source